Its advanced chassis and driveline technology with excellent dynamic driving characteristics make the Audi A4 a logical choice for the enthusiastic driver. Regardless of road or weather conditions, the driver benefits from the advantages of Audi's perfected front-wheel drive or - even better - the permanent "quattro" four-wheel driveline.
Straight-line stability, neutral cornering, and agile handling with high safety reserves are characteristics of the A4 chassis. The four-link front suspension's precision wheel location ensures that the car remains true to the chosen course as the power is transferred to the road surface. Even in critical situations, the Audi A4 remains good-natured and easy to control.
With this suspension method developed by Audi, each front wheel is guided by four control arms. To save weight, these are of forged aluminium.
All the elastokinematics (i.e., the defined elastic and kinematic movements) of the front suspension have been revised, and the control arms and transmission and sub-frame mounts modified. The sub-frame now has a cross strut for additional strength. Shock absorbers that have been optimised to reduce friction are employed for the front and rear suspension. In conjunction with spring locations optimised to withstand lateral loads, they significantly improve initial response and spring movement on the compression and rebound strokes.
The rear suspension has also been extensively revised. The third generation torsion-crank rear axle has a stiffened axle beam and a new type of guide bearing that allows selective tuning in all directions. With this reconfigured guide bearing and separate shock absorber and damper mountings to the bodyshell, it is possible to achieve a significantly more effective isolation from unwanted road-surface excitation and improved performance. Together with additional local bodyshell reinforcements (particularly in the front and rear tunnel areas), these measures lead to a significant gain in driving and roll refinement, improved responsiveness, and pleasant acoustics.
The steering characteristics and elasticity have been revised in detail in order to achieve a further increase in steering "feel" (the sense of contact with the road) and precision.
The introduction of a tandem brake booster servo, enlargement of the main tandem brake cylinder, and clearance-optimised brake calipers have made brake pedal response significantly more intensive by shortening free travel of the pedal and improving control sensitivity.
The Electronic Stability Program (ESP) assists the driver, particularly in critical situations when the vehicle reaches its dynamic limits. As well as ABS and electronic braking-force distribution (EBD), it includes the electronic differential lock (EDL) and traction control (ASR), which have been used effectively for some years to improve traction even when road conditions are poor. In the future, ESP will be available as standard or optional equipment with all engine-transmission combinations - both for front-wheel drive and for quattro. The combination of ESP and quattro in particular offers optimum driving dynamics.
Two new types of 7J x 16-inch aluminium wheel with 9-spoke or 10-hole design and 205/55 R 16W tyres are interesting new items in the list of optional extras. Altogether, the customer can now choose between four types of 16-inch and four types of 15-inch aluminium wheels.
1999 Mid-Year Changes Introduction
Design: sporty and elegant
Inner beauty as well
Extensive chassis modifications
Safety and SIDEGUARD
Varied choice of engines
The equipment specification and data given refer to models available in Germany. Audi reserves the right to make changes. Errors and omissions excepted.
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