BMW E34

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BMW E34
BMW 525i, E34 body style
Manufacturer: BMW
Production: 1988–1995
Predecessor: BMW E28
Successor: BMW E39
Class: Midsize (E) luxury
Similar: Mercedes-Benz W124
Vehicles: BMW 5 Series
BMW 525i, E34 Touring version
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BMW 525i, E34 Touring version

The BMW E34 is the version of the BMW 5 Series automobile built from February 1988 to 1995 (Touring until 1996). It replaced the BMW E28 in 1988 and was replaced by the E39 in 1996, although E34s were still being sold in 1996.

The E34 succeeded the BMW E28 in 1989 with two models. The 525i used the BMW M20 engine while the 535i used the larger M30. The cars were a blend of BMW tradition and modern technology. BMW's traditional FR layout and straight-6 were used, providing the smooth engine and optimal weight distribution BMW customers had come to expect. The E34 also had a much stiffer body and was more streamlined than its predecessor, looking very much like the BMW E32 7-series.

The E34 was among the most reliable luxury cars on the market, earning the best-in-class reliability rating from Intellichoice in 1991. It is still considered one of the most reliable BMWs made. It was also one of the safest cars on the road during its production, providing airbags, 4-wheel anti-lock brakes, and a very rigid body structure to protect occupants in the event of an accident. The E34's 60-0 mph (97 to 0 km/h) stopping distance of 130 feet (40 m) was the best of any production sedan in 1990.

Contents

[edit] E34 Models

  • 518i (1989–1993) M40B18 Engine
  • 518i (1993–1996) M43B20
  • 520i (1988–1990) M20B20
  • 520i ECE (1988–1990) M20B20 (higher compression than 520i non ECE)
  • 520i (1990–1995) M50B20
  • 525i (1988–1991) M20B25
  • 525i (1990–1995) M50B25
  • 525iX (1992–1995) M50B25 (four-wheel drive version)
  • 525td
  • 525tds
  • 530i (1988–1990) M30B30
  • 530i (1992–1995) M60B30
  • 535i (1988–1992) M30B35
  • 540i (1993–1995) M60B40
  • 518g (1995–1996) CNG Engine (Touring body only)

While Europe was given a large selection of engine choices and combinations, the North American market was more limited. While North America received only the 525i, 525i Touring, 535i, 530i, 530i Touring, 540i, and the M5, the European market also got the E34 518i, 520i, 6-cylinder 530i, and diesel 525td/s. The cars were also available earlier in Europe than in America.

[edit] 525i

The 525i was built throughout the E34 production, and in 1992 was offered as a wagon (touring version) in the USA. In 1991, the engine was switched from the single overhead cam M20 engine to the double overhead cam M50 engine, raising power to 189 horsepower (141 kW), while a change from a timing belt to a timing chain improved reliability. A further revision of the 525i engine took place in 1993, when VANOS was added to the M50 engine which was designated the M50TU.

[edit] 525iX

The 525iX was the only four-wheel drive version in the E34 series. It was available both as a sedan and a wagon (touring version). It features a computer-controlled rear and middle differentials. The middle differential normally would divide 36% torque to the front axle and 64% to the rear axle, but could alter the ratio according to driving conditions (in case one of the axles started to slip).

[edit] 535i

The E34 535i was introduced in Europe as a 1988 model but was not available in North America until 1989. Production of the E34 535i ended in 1993, replaced by the V8 530i and 540i models. Despite the 535i designation, the M30 engine found in the E34 535i was actually 3430cc. Only 5% of total production 535i's were 5-speeds. The car can get 14-17 miles per U.S. gallon (17 to 14 L/100 km) city and 23-29 mpg (U.S.) (10 to 8 L/100 km) highway.

[edit] 530i

The E34 530i was available in Europe starting from 1988, but never in North America. It had a M30B30 3.0 liter inline-6 engine producing 188 hp. The early 530i was discontinued in 1990.

The new 530i model, which was also sold in North America, was introduced in 1992. Replacing the 535i, it had new M60, DOHC 3.0 liter V8 engine producing 218 hp (160 kW). It was also offered in a touring version.

[edit] 540i

In 1993 BMW added a 4.0 liter V8 to the 5 Series lineup. It was available in both sedan and touring models. Its large, torquey engine, upgraded brakes, and optional 6-speed transmission (offered in 1995) made it very competitive in the sports sedan market.

Both the E34 BMW 530i and 540i shared the M60 engine, which used Nikasil bore linings. In America, this made both susceptible to premature engine wear, as high sulfur content in some fuels resulted in deterioration of the linings. BMW then introduced Alusil linings for this engine, which solved the problem.

A rare 540i Sport model was built in 1995. This package included not just a firmer suspension and sport seats, but used many parts from the M5, save for the engine and transmission. 200 "Sport" models were built, 135 of them with a 6-speed manual. Canada also got a special version – the M540i, which was similar to the American 540i Sport but had even more M5 parts, such as 345 mm floating front rotors, 18 inch wheels, and various trim pieces. Only 32 of these cars were built, all with a manual transmission.

All versions of the 540i had the same 0-60 mph time of 6.4 seconds, and could get 14-17 miles per U.S. gallon (17 to 14 L/100 km) city and 23-29 mpg (U.S.) (10 to 8 L/100 km) highway.

[edit] M5

The M5 version of the E34 was produced from 1989-1995. It featured a highly tuned straight-6 engine, originally a 3.6 L, but later increased to 3.8 L.

[edit] Characteristics

[edit] Dimensions

  • Length = 185.8 in (4.72 m)
  • Width = 68.9 in (1.75 m)
  • Wheelbase = 108.7 in (2.76 m)
  • Weight = 3,570 lb (1620 kg)
  • Weight distribution F/R = 50%/50%
  • Trunk capacity = 16.2 ft³ (0.46 m³)
  • Drag coefficient = between 0.30 and 0.32, depending on model

[edit] Performance

535i with 5-speed Getrag manual transmission:

  • 0-60 mph (0-97 km/h) in 7.6 s
  • 1/4 mile (0.4 km) in 15.7 s
  • Top speed (computer-limited): 128 mph (206 km/h)
  • Top speed (without limiter-Euro models): 153 mph (246 km/h)
  • 60-0 mph (97-0 km/h) in 130 feet (40 m)

[edit] Equipment

  • Standard Equipment: Air Conditioning; AM/FM Cassette with 10 speakers; Rear Defroster; Leather Interior; Driver's side airbag (after 1990); 4-wheel anti-lock brakes.
  • Standard Power Accessories: steering; mirrors; 10-way adjustable front seats; windows with all auto-down and driver's auto-up; central locking system, including trunk and gas filler door locks;:one-touch sunroof.
  • Options: On-Board Computer; Trunk-mounted 6-disc changer; Cold Weather Package, with heated front seats, door lock cylinders, rearview mirrors and windshield washers; Automatic Stability Control (ASC) (added in mid 1990).

[edit] External links

BMW | BMW M | Category | road car timeline, 1960s-present -  v • d • e 
Type Series 1960s 1970s 1980s 1990s 2000s 2010s
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Compact 1 Series LS/700 E87
3 Series 1602,2002 E21 E30 E36 E46 E90-E93
Mid-size 5 Series 1500,1800,2000 E12 E28 E34 E39 E60/E61 F10/F11
Full-size 7 Series E3 E23 E32 E38 E65/E66 F01/F02
Coupé 6 Series 2000CS E9 E24 E63/E64
Roadster Z Series Z1 Z3 Z4 Z2
Supercar/GT   E26 E31 E52 Z10
Crossover X3 E83
X5 E53 E70
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