Citroën XM
Encyclopedia
The Citroën XM is an executive car
Executive car
Executive car is a British term that refers to a car's size and is used to describe an automobile larger than a large family car. In official use, the term is adopted by EuroNCAP, a European organisation founded to test car safety.- History :...

 that was produced by the French automaker
Automaker
The automotive industry designs, develops, manufactures, markets, and sells motor vehicles, and is one of the world's most important economic sectors by revenue....

 Citroën
Citroën
Citroën is a major French automobile manufacturer, part of the PSA Peugeot Citroën group.Founded in 1919 by French industrialist André-Gustave Citroën , Citroën was the first mass-production car company outside the USA and pioneered the modern concept of creating a sales and services network that...

 between 1989 and 2000. Citroën sold 333,775 XMs during the model's 11 years of production. The XM was voted 1990 European Car of the Year
European Car of the Year
The European Car of the Year award was established in 1964 by a collective of automobile magazines from different countries in Europe. The current organisers of the award are Auto , Autocar , Autopista , Autovisie , L'Automobile Magazine , Stern and Vi Bilägare .The voting jury consists of motoring...

.

History

Launched on 23 May 1989, the XM was the modern iteration of the Big Citroën, a replacement for the Citroën CX
Citroën CX
The Citroën CX is an automobile produced by the French automaker Citroën from 1974 to 1991. Citroën sold nearly 1.2 million CXs during its 16 years of production. The CX was voted European Car of the Year in 1975....

.

The XM won the prestigious European Car of the Year
European Car of the Year
The European Car of the Year award was established in 1964 by a collective of automobile magazines from different countries in Europe. The current organisers of the award are Auto , Autocar , Autopista , Autovisie , L'Automobile Magazine , Stern and Vi Bilägare .The voting jury consists of motoring...

 award for 1990 (gaining almost twice as many votes as the second, the Mercedes-Benz SL) and went on to win a further 14 awards that year.

The extreme, slender, and well-proportioned Bertone design took Gandini's Citroën BX
Citroën BX
The Citroën BX is a large family car that was produced by the French manufacturer Citroën from 1982 to 1994. In total, 2,315,739 BXs were built during its 12-year history. The hatchback was discontinued in 1993 with the arrival of the Xantia, but the estate continued for another year.-History:The...

 concept to its natural conclusion. That design drew heavily on the Citroën SM
Citroën SM
The Citroën SM is a high-performance coupé produced by the French manufacturer Citroën from 1970 to 1975. The SM placed third in the 1971 European Car of the Year contest, trailing its stablemate Citroën GS, and won the 1972 Motor Trend Car of the Year award in the U.S. in 1972.-History:In 1961,...

 of the 1970s, sharing similar lines and looks, tailored to meet higher production numbers and lower production cost. Design critic Jonathan Meades described it as the last gothic car, as quoted by Stephen Bayley in "Design Made Visible" (2007).

There were many advances, most apparently designed to counteract concerns about the vintage CX design. The CX leaned in corners, so the XM had active electronic management of the suspension; the CX rusted, so the XM had a part-galvanised bodyshell (most surviving XMs have very little corrosion); the CX was underpowered, so the XM offered the option of a 3.0 L V6 engine – the first in a Citroën since the Maserati
Maserati
Maserati is an Italian luxury car manufacturer established on December 1, 1914, in Bologna. The company's headquarters is now in Modena, and its emblem is a trident. It has been owned by the Italian car giant Fiat S.p.A. since 1993...

-engined SM of 1970.

The XM shared a floorpan with the Peugeot 605
Peugeot 605
The Peugeot 605 is an executive car produced by the French manufacturer Peugeot between 1989 and 1999, with a facelift in 1995.-History:The 605 was a saloon/sedan built on the same platform as the Citroën XM, and was successor to the unsuccessful Peugeot 604 which went out of production 4 years...

, and the two models fared similarly in both teething problems and market acceptance. Unlike the 605 sedan design, the XM was a liftback design - a feature thought to be desirable in certain European markets.

The XM inherited a loyal
Brand loyalty
The American Marketing Association defines brand loyalty as:# The situation in which a consumer generally buys the same manufacturer-originated product or service repeatedly over time rather than buying from multiple suppliers within the category .# The degree to which a consumer consistently...

 global customer base of executive class customers
Executive car
Executive car is a British term that refers to a car's size and is used to describe an automobile larger than a large family car. In official use, the term is adopted by EuroNCAP, a European organisation founded to test car safety.- History :...

 and a clear brand image, but did not enjoy the commercial success and icon
Icon
An icon is a religious work of art, most commonly a painting, from Eastern Christianity and in certain Eastern Catholic churches...

ic status of its predecessors, the CX
Citroën CX
The Citroën CX is an automobile produced by the French automaker Citroën from 1974 to 1991. Citroën sold nearly 1.2 million CXs during its 16 years of production. The CX was voted European Car of the Year in 1975....

 and the DS
Citroën DS
The Citroën DS is an executive car produced by the French manufacturer Citroën between 1955 and 1975. Styled by Italian sculptor and industrial designer Flaminio Bertoni and the French aeronautical engineer André Lefèbvre, the DS was known for its aerodynamic futuristic body design and innovative...

, which both raised the bar of automotive performance for other manufacturers.

Export markets experienced lower sales from the outset, and home market sales also declined, after the mechanical issues of the first few model years became known. The least expensive XM was nearly 50% more expensive at the time of launch than the corresponding CX. In spite of that, it sold well during the first two years. Unfortunately it suffered from defective electrical connectors, due to excessive economies on the components, since the parent company was in financial difficulty at the time of the design of the XM.

Production finally ceased in June 2000.

With total sales over its lifetime of just 330,000 units in more than 10 years and no immediate replacement, the XM might be considered a failure, particularly in markets such as the United Kingdom, where demand was reduced to a virtual trickle by the late 1990s. But despite its common roots with the Peugeot 605, the XM may still emerge as a collectible car, as the DS and CX both did.

Suspension

The hydropneumatic self-leveling suspension (featuring grapefruit-sized metal spheres containing nitrogen
Nitrogen
Nitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere...

, acting as both springs and shock absorbers) gained a very sophisticated electronic control system called Hydractive, which used sensors in the steering, brakes, suspension, throttle pedal and transmission to feed information on the car's speed, acceleration, and road conditions to on-board computers. Where appropriate – and within milliseconds – these computers switched an extra suspension sphere in or out of circuit, to allow the car a smooth supple ride
Ride quality
Ride quality refers to the degree of protection offered vehicle occupants from uneven elements in the road surface, or the terrain if driving off-road. A car with very good ride quality is also a comfortable car to ride in. Cars which disturb vehicle occupants with major or minor road...

 in normal circumstances, or greater roll resistance for better handling in corners.

The Hydractive system was somewhat "ahead of the curve" when the car was launched and early versions were sometimes unreliable. Many problems stemmed from the sensitive electronics controlling the car's hydraulic system, often caused by the poor quality of the multipoint ground
Ground
Ground may refer to:* Earth's surface* Soil, a mixture of clay, sand and organic matter present on the surface of the Earth and serving as substrate for plant growth and micro-organisms development...

ing blocks — one on each front inner wing, one at the rear, and one under the dashboard. These tended to corrode (especially the ones in the engine compartment), causing all manner of intermittent faults which were hard to diagnose. On later cars, these were changed to screw terminals bolted through the bodywork, and most of the older cars have been modified in a similar way.

When the Hydractive system worked, the result was a big car with a smooth "magic carpet" ride, and better handling than many smaller, lighter, sports cars. When it didn't work, it was quite harsh and bumpy, although no worse than any contemporary high-performance sports sedan. However, right-hand drive XMs were never fitted with the DIRAVI
DIRAVI
DIRAVI is the name given by Citroën to its proprietary power steering system, first seen in 1970.DIRAVI is an acronym for "Direction à rappel asservi" literally meaning "steering with controlled return" more accurately described in English as "power steering with power assisted return". In the UK,...

 variable fully powered steering of the CX, having an almost conventional DIRASS power-assisted setup.

Some production models of the XM were not equipped with the Hydractive system, but had a 'conventional' hydropneumatic suspension closer to that of the Citroën BX
Citroën BX
The Citroën BX is a large family car that was produced by the French manufacturer Citroën from 1982 to 1994. In total, 2,315,739 BXs were built during its 12-year history. The hatchback was discontinued in 1993 with the arrival of the Xantia, but the estate continued for another year.-History:The...

. These lower specification vehicles were all built for markets in mainland Europe.

Engines

The XM was fitted with a wide range of gasoline and diesel engines:
Model Years Engine and code Displ. Power Torque Accel 0–100 km/h Top Speed
2.0 1989–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 8V
XU10 2C  1998 cc 85 kW @ 5800 rpm 164 newton metre @ 2250 rpm 193 kilometre per hour
2.0i 1989–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 8V
XU10  1998 cc 81 kW @ 5600 rpm 164 newton metre @ 3500 rpm 12.4 sec 190 kilometre per hour
2.0i 1989–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 8V
XU10 J2C  1998 cc 89 kW @ 5600 rpm 170 newton metre @ 4000 rpm 11.9 sec 201 kilometre per hour
2.0i 16V 1994–2000 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 16V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
XU10 J4R  1998 cc 97 kW @ 5500 rpm 180 newton metre @ 4200 rpm 10.8 sec 205 kilometre per hour
2.0i Turbo CT 1992–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 8V
XU10 J2TE  1998 cc 107 kW @ 4400 rpm 226 newton metre @ 2200 rpm 9.8 sec 212 kilometre per hour
2.0i Turbo CT 1994–2000 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 8V
XU10 J2TE  1998 cc 108 kW @ 5300 rpm 235 newton metre @ 2500 rpm 9.3 sec 215 kilometre per hour
3.0i V6 1989–1994 V6
V6 engine
A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a right angle or an acute angle to each other, with all six pistons driving a common crankshaft...

 12V
PRV
PRV engine
The PRV engine is an automobile petrol V6 engine that was developed jointly by Peugeot, Renault and Volvo Cars – and sold from 1974 to 1998. It was gradually replaced after 1994 by another joint PSA-Renault design, known as the ES engine at PSA and the L engine at Renault.-Corporate history:The...

 
2975 cc 125 kW @ 5600 rpm 240 newton metre @ 4600 rpm 9.7 sec 222 kilometre per hour
3.0i V6 1994–1997 V6
V6 engine
A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a right angle or an acute angle to each other, with all six pistons driving a common crankshaft...

 12V
PRV
PRV engine
The PRV engine is an automobile petrol V6 engine that was developed jointly by Peugeot, Renault and Volvo Cars – and sold from 1974 to 1998. It was gradually replaced after 1994 by another joint PSA-Renault design, known as the ES engine at PSA and the L engine at Renault.-Corporate history:The...

 
2963 cc 123 kW @ 5600 rpm 235 newton metre @ 4600 rpm 9.7 sec 222 kilometre per hour
3.0i V6 24V 1990–1997 V6
V6 engine
A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a right angle or an acute angle to each other, with all six pistons driving a common crankshaft...

 24V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
PRV
PRV engine
The PRV engine is an automobile petrol V6 engine that was developed jointly by Peugeot, Renault and Volvo Cars – and sold from 1974 to 1998. It was gradually replaced after 1994 by another joint PSA-Renault design, known as the ES engine at PSA and the L engine at Renault.-Corporate history:The...

 
2975 cc*1 147 kW @ 6000 rpm 260 newton metre @ 3600 rpm 8.6 sec 235 kilometre per hour
2.9i V6 24V 1997–2000 V6
V6 engine
A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a right angle or an acute angle to each other, with all six pistons driving a common crankshaft...

 24V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
ES9 J4
PSA ES engine
The PSA ES engine or Renault L engine is a V6 engine used in automotive applications. It was co-developed by the PSA Group and Renault to replace the outdated PRV engine. It was introduced in 1997 with the Peugeot 406 Coupé....

 
2946 cc 140 kW @ 5500 rpm 267 newton metre @ 4000 rpm 8.4 sec 233 kilometre per hour
2.1 D12 1989–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 12V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
XUD11 A  2138 cc 60 kW @ 4600 rpm 147 newton metre @ 2000 rpm 17.6 sec 173 kilometre per hour
2.1 Turbo D12 1989–1994 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 12V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
XUD11 ATE  2088 cc 81 kW @ 4300 rpm 243 newton metre @ 2000 rpm 12.9 sec 192 kilometre per hour
2.1 Turbo D 1994–2000 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 12V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
XUD11 BTE  2088 cc 80 kW @ 4300 rpm 250 newton metre @ 2000 rpm 12.9 sec 192 kilometre per hour
2.5 Turbo D 1994–2000 I4
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....

 12V
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

 
DK5  2446 cc 95 kW @ 4300 rpm 285 newton metre @ 2000 rpm 12.1 sec 201 kilometre per hour

*1 From 1994 2963 cc

Being part of the PSA Peugeot-Citroën company, most of these engines were found in contemporary PSA cars, like the Citroën Xantia
Citroën Xantia
The Citroën Xantia, pronounced 'Zan-tia' is a large family car produced by the French automaker Citroën. First seen at the end of 1992, the car was produced between 1993 and 2001, with a facelift in 1998. Citroën sold over 1.2 million Xantias during its 8 years of production...

, Citroën C5
Citroën C5
The Citroën C5 is a large family car produced by the French manufacturer Citroën since early 2001. The C5 replaced the Citroën Xantia in the large family car class.-First generation :...

, Peugeot 405
Peugeot 405
The Peugeot 405 is a large family car released by the French automaker Peugeot in July 1987 and which continues to be manufactured under licence outside France. It used TU/XU petrol and XUD diesel engines....

, Peugeot 406
Peugeot 406
The Peugeot 406 was a large family car made by the French automaker Peugeot from 1995 to 2004. Available in saloon, estate and coupé bodystyles with a choice of petrol or turbodiesel engines, the 406 replaced the Peugeot 405 in Peugeot's lineup, and was itself replaced by the Peugeot 407...

 and Peugeot 605
Peugeot 605
The Peugeot 605 is an executive car produced by the French manufacturer Peugeot between 1989 and 1999, with a facelift in 1995.-History:The 605 was a saloon/sedan built on the same platform as the Citroën XM, and was successor to the unsuccessful Peugeot 604 which went out of production 4 years...

. The ZF 4HP18
ZF 4HP18 transmission
The ZF 4HP18 is a four-speed automatic transmission for passenger cars from ZF Friedrichshafen AG. Introduced in 1987, and produced through 1998, it was used in a variety of cars from Alfa Romeo, Audi, Citroën, Dodge, Eagle, Fiat, Lancia, and Saab.-4HP18FL:...

 automatic transmission
Automatic transmission
An automatic transmission is one type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually...

 – the late V6 had 4HP20
ZF 4HP20 transmission
The ZF 4HP20 is a four-speed automatic transmission for passenger cars from ZF Friedrichshafen AG. Introduced in 1995, it remains in production, and has been used in a variety of cars from Citroën, Lancia, Mercedes-Benz, Peugeot, and Renault.-Applications:...

 – was used also in Saab 9000
Saab 9000
The Saab 9000 is an automobile that was produced by the Swedish company Saab from 1984 to 1997. The 9000 was replaced by the 9-5 in the late 1997....

, Peugeot 605
Peugeot 605
The Peugeot 605 is an executive car produced by the French manufacturer Peugeot between 1989 and 1999, with a facelift in 1995.-History:The 605 was a saloon/sedan built on the same platform as the Citroën XM, and was successor to the unsuccessful Peugeot 604 which went out of production 4 years...

, Alfa Romeo 164
Alfa Romeo 164
The Alfa Romeo 164 is an executive car with saloon body, produced by the Italian automaker Alfa Romeo from 1987 to 1998.The 164 was re-badged as the 168 for the Hong Kong and Malaysian markets, as the number "164" had a very negative connotation , and "168" has quite the opposite The Alfa Romeo 164...

, Lancia Thema
Lancia Thema
The Lancia Thema is an executive car produced by the Italian automaker Lancia between 1984 and 1994, and one of four cars to share the Type Four platform alongside the Alfa Romeo 164, Fiat Croma and Saab 9000...

 and the Fiat Croma
Fiat Croma
The Fiat Croma is a nameplate used for two automobiles produced by Italian automaker Fiat, one a large family car built from 1985 to 1996 and the other a cross-over wagon built from 2005 to 2011.- Fiat Croma :...

.

Dimensions and weights

  • Length: 4709 mm (185.4 in) (Berline) or 4950 mm (194.9 in) (Break) or 4963 mm (195.4 in) (1998 V6 Break)
  • Width: 1793 mm (70.6 in)
  • Height: 1392 mm (54.8 in) (most Berline models); some turbo models 1385 mm (54.5 in); 1466 mm (57.7 in) (1998 V6 Break)
  • Wheelbase: 2850 mm (112.2 in)
  • Ground clearance: 140 mm (5.5 in)
  • Weight: 1310 kg (2,888 lb) (2.0i Berline) – 1400 kg (3,086 lb) (2.0 Turbo Berline) – 1453 kg (3,203 lb) (Turbo Break) – 1475 kg (3,252 lb) (1990 V6) – 1642 kg (3,620 lb) (Turbo 2.5D Break) – 1655 kg (3,649 lb) (1998 V6 Break)
  • Fuel tank capacity: 80 l (21 US gal; 18 imp gal)

Differences between 1st and 2nd generations

There are a number of visible differences between the first generation (May 1989 – May 1994) and second generation (June 1994 – June 2000) cars:

The most distinctive external differences are that:
  • In second generation XMs, the Citroën double-chevron logo
    Logo
    A logo is a graphic mark or emblem commonly used by commercial enterprises, organizations and even individuals to aid and promote instant public recognition...

     was moved to the centre of the grille and became larger. It was located off-centre in the first generation cars.

  • The "XM" badge on the rear had a more stylised font and it was moved to the right of the tailgate.

  • The second generation cars were fitted with a lower rear spoiler on the tailgate, sitting much closer to the top of the boot.

  • The grey/black panel between the leading edge of the windscreen and the rear edge of the bonnet was colour coded with the body colour. The original colouring was designed to echo the upward kick in the windowline behind the rear door. With body coloured plastic this visual relationship became less clear and the "visual mass" of the front of the car increased somewhat. This effect was clearer on light coloured cars where the contrast between the dark areas and light areas was more pronounced.

  • The door mirrors were modified to improve the view of the passenger side mirror from the driver's seat Previously it was slightly obscured by the A-pillar. However, the obscuration only affected the field of view above the road horizon which is relatively less important.


Differences to the interior include:
  • A more conventional three spoke steering wheel
    Steering wheel
    A steering wheel is a type of steering control in vehicles and vessels ....

     including an integrated airbag
    Airbag
    An Airbag is a vehicle safety device. It is an occupant restraint consisting of a flexible envelope designed to inflate rapidly during an automobile collision, to prevent occupants from striking interior objects such as the steering wheel or a window...

    . The driver airbag was standard on most models and countries, regardless of hand-drive configuration. As a result, the second generation models never had Citroën's distinctive single-spoke wheel. In certain markets (mainly the UK) and for certain models XMs were fitted with a two-spoke wheel.

  • A modified instrument panel
    Dashboard
    A dashboard is a control panel placed in front of the driver of an automobile, housing instrumentation and controls for operation of the vehicle....

    , to accommodate an optional passenger airbag (standard after December 1995). Also, in 1997, front seat-mounted side airbags were added, which were optional or standard depending on model and market. The design was similar to the Xantia´s dashboard.

  • The quality of the interior materials was marginally improved, with the leather and the seating being both softer but more supportive.

  • The upper part of door trim were redesigned to soften the shape. Series 1 cars had a pronounced chamfer-effect in keeping with the angular theme of the dashboard.

  • The driver and all passengers comfort was further enhanced (on Exclusive models) by variable heat seating, rather than as before just "on or off", with a dial switch allowing a heat setting of 1, 2, or 3.


Other major improvements include:
  • Better, more reliable electrics and a faster computer system controlling the new Hydractive 2 suspension.

  • Some models also received the "Auto Adaptive" gearbox, which supposedly assesses the driver's driving style, then switches to the most appropriate of approximately 6 onboard programmes. This gearbox was further enhanced by a "Sport" mode button (in addition to the sports button for the suspension), which shortened the gear change times, therefore offering a more responsive experience. The final new upgrade effecting the driving experience saw the introduction of a "Snow Mode" button, located next to the new sport mode button. Although rarely used in some countries, this was a surprisingly effective addition to the driver's arsenal; during any notable falls of snow that may affect the road ahead, a simple push of this button commands the gearbox to only accelerate from 2nd gear and up, and not to rev the engine too high, thus preventing any loss of traction.


In addition, the following changes were made to make the car easier to accept by more mainstream car buyers:
  • As a direct consequence of their high pressure hydraulics, early XM brake pedals had very little, if any, travel. Phase 2 XMs had some sponginess deliberately built in to the braking system (by inserting a sleeved spring into the pedal linkage) to make their brakes feel more like those on other cars.

  • The Phase 2 "Hydractive 2" cars no longer "settled" down to the bottom of their suspension travel after having been parked for a while; this feature was termed "Anti-Sink" by Citroën. Such systems have even more complex hydraulics than 'Sinkers' because of the use of isolating valves and an extra sphere near the rear 'axle'. The hydraulic systems were also a lot quieter when maneuvering; this was due to the changes the "Anti-Sink" system brought. Early cars, 'sinkers', had a single output hydraulic pump which had its output divided into separate circuits, one for the power steering and one for the suspension/brake circuits (power steering needs a large flow rate whereas the suspension/brakes doesn't). The device which does this job is called a FDV (Flow Diverter Value), and this device hisses noticeably when the car is standing still or maneuvering. A slight pull on the steering wheel or a blip of the throttle will stop the hiss for a few seconds or so. Later "Anti-Sink" cars have a dual output pump, referred to as a 6+2 pump due to the number of internal piston chambers. Such cars therefore have no need of the "FDV" and therefore do not hiss.

The DIRAVI functions

A function much missed by Citroën enthusiasts was the "DIRAVI" System, previously present in the SM and CX. This option was only available for the French or LHD Export market and then only on the 3.0 V6 models. The functionality varied from car to car, but simply put the system affects steering control, at lower speeds less steering centering force aids parking and make city driving easier, but at higher speeds the system makes the steering heavier keeping you in a straight line on highways and suppressing the "sneeze" factor inherent to fast steering ratios. Another helpful function of DIRAVI is its ability to return the steering wheel to its central or neutral position when let go by the driver, even when the car is stationary. This is especially helpful when parking as the driver can be assured that his or her wheels will be in the correct position when the ignition is turned off; again this function also aids high speed, straight line driving on highways etc. Although an odd sensation to start with, most Citroën drivers become accustomed to DIRAVI in a very short time, only appreciating its unique abilities when they let go of the steering wheel in a car without DIRAVI, only to find nothing happens. DIRAVI makes the tendency of all cars' steering to return to center constant in DIRAVI equipped Citroëns rather than being affected by tire adhesion, road tilt, tire pressure, tire failure, etc.

Variants

The standard 5-door models were called "Berline". The XM was also available as a "Break" (station wagon) – and in France, Tissier continued a tradition begun with the DS and CX, converting many to be used as ambulances and specialised delivery vehicles including their distinctive twin rear-axle conversions.

Although not an official variant XMs produced around 1992/1993 have been termed series 1.5 cars due to the mix of newer technology (developed for the series 2) with the series 1 vehicle type. One example of this being the alterations to the "Hydractive" suspension system on such cars. Early vehicles (series 1) had a system that could be switched from 'Comfort' to 'Sport' mode, this did exactly what you would expect and firmed up the suspension on flicking the switch but this made for a harsh ride which Citroen owners don't like. So Citroen developed "Hydractive 2" suspension (for series 2 vehicles) that although in essence was the same it worked differently, it still had to two states 'hard' and 'soft' but the switching was controlled differently. In general smooth gentle driving the suspension would be in 'soft' mode ("Normal" mode according to Citroen on series 2 vehicles) which utilized all 6 suspension spheres and allowed 'crossflow' of fluid from side to side producing the characteristic wafting ride, but as soon as the suspension ECU sensed a large or sudden change in one of the sensors it would put the suspension into 'hard' mode locking out the extra centre spheres and stopping the 'crossflow' of fluid, this dramatically firmed up the suspension and cut body roll, as soon as the vehicle stabilized the ECU would switch the suspension system back into 'soft' mode. This is the basis of "Hydractive 2", a soft cosseting ride all the time unless the conditions demand otherwise, switching a "Hydractive 2" vehicle into "Sport" mode doesn't just switch out the extra spheres as with "Hydractive 1", it simply just narrows the parameters that cause the suspension to go into 'hard' mode and keeps the suspension in that mode for longer before defaulting back to 'soft' mode. So a series 1.5 vehicle has the styling of a series 1 but with some of the suspension refinements of the series 2 vehicles. There are other detail changes to the actual implementation of the "Hydractive" but unless you are maintaining the vehicle yourself these are unimportant.

Headlight issues

The XM's new "complex surface" headlamp
Headlamp
A headlamp is a lamp, usually attached to the front of a vehicle such as a car or a motorcycle, with the purpose of illuminating the road ahead during periods of low visibility, such as darkness or precipitation. Headlamp performance has steadily improved throughout the automobile age, spurred by...

s were not powerful enough on dipped beam, though main beam was perfectly adequate. This could be traced to the use of a plastic optical element between the bulb and the outer lens, which yellowed with age. The XM was not alone here; early Ford Mondeo
Ford Mondeo
The Mondeo was launched on 8 January 1993, and sales began on 22 March 1993. Available as a four-door saloon, a five-door hatchback, and a five-door estate, all models for the European market were produced at Ford's plant in the Belgian city of Genk...

s suffered from the same problem. Series 2 (from mid-1994 onwards) left-hand drive XMs had improved light units without the plastic element, but slow UK sales meant these were never fitted to right-hand drive cars. Headlamp retrofit kits using dual or triple round optics are available from third party suppliers, though this changes the aesthetics of the car. Series 1 cars can be fitted with series 2 headlights.

US import

The XM was imported into the United States by CXA, a company that had imported several hundred CX25
Citroën CX
The Citroën CX is an automobile produced by the French automaker Citroën from 1974 to 1991. Citroën sold nearly 1.2 million CXs during its 16 years of production. The CX was voted European Car of the Year in 1975....

 GTi and Prestige model cars for Citroën loyalists in the USA.

CxAuto presented the XM at the 1991 New York Motor Show
New York International Auto Show
The New York International Auto Show is an annual auto show held in New York City in late March or early April. It is usually held at the Jacob Javits Convention Center. It usually opens on or just before Easter weekend and closes on the first Sunday after Easter...

, in the spring of 1991 and began converting and selling the XM Pallas (combined with the 2.0 injection engine) and the XM Vitesse (combined with the 3.0 V6 engine). In 1993, the XM Exclusive was added to the range. Unfortunately, the XM cost 40% more than the CX Prestige, with a price in excess of $50,000 and only a few examples were sold. As a result of newer, tougher US anti-pollution standards, the import of these cars ceased in 1997. XM parts must be sent over from Europe.

External links

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