BMW E34
The BMW E34 was manufactured from February 1988 to 1995. It replaced the BMW E28.
The 525i had two models that were manufactured and used the M20 engine while the 535i used the larger M30 powerplant. The cars were a mix of BMW tradition and modern technology of the times. The new 5 series had a much stiffer body and was more streamlined than the E28.
The E34 was among the most reliable luxury cars on the market and still considered one of the most reliable BMWs ever made and also one of the safest cars on the road during its production years, providing airbags, 4 wheel anti lock brake system, and a very rigid body structure. It was also equipped with traction control in later years on higher-specification variants of the vehicles line up.
The 525i was built throughout the E34 production, and in 1992 was offered as a station wagon also referred to as the touring version. In June 1991, the engine was changed from the SOHC M20 engine to the DOHC M50B25 engine. This engine dramatically improved performance, raising power from 170 to 192 Hp or 141 kW. The timing belt was replaced by a cam timing chain and hydraulic chain tensioner that improved the reliability of the engine.
A further revision of the 525i engine took place in 1993, when VANOS was added to the M50 engine which was coded the M50TU ( TU represents, Technical Update). VANOS brought no horsepower increase, but flattened the torque curve from about 3,000 rpm up to redline at approximately 6,300 rpm.
The 525iX was the only four-wheel drive version in the E34 series. It was available both as a sedan and a station wagon version. It features a computer-controlled rear and centre differentials. The centre differential normally would divide 36% torque to the front axle and 64% to the rear axles.
The six cylinder E34 530i was available in the year 1988. It was fitted with the M30B30 engine which is a 3.0 liter inline 6 petrol engine producing 188 Bhp or 140 kW. In 1992, a new eight cylinder 530i model was introduced in Europe, replacing the 535i with an all new, it had the new M60 engine, a 32 valve double overhead camshaft 3.0 liter V8 engine that was capable of producing 218 bhp or 163 kW of power.
In 1993 BMW added a 4.0 liter V8 to the 5 Series of its ever increasing line up of cars. It was available in both sedan and touring models. Its large engine, upgraded brakes, and 5 speed automatic transmission made this a very competitive car in the sports sedan market. The HE98 was made in the BMW Rosslyn plant in Pretoria, South Africa.
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