Self Study Program 960143 – The 2015 Audi A3 Running Gear and Suspension System
VAG SSP 960143. A major developmental goal for the suspension system of the Audi A3 was to achieve a high level of agility, sporty handling and high driving comfort without making any compromises to driving dynamics.
Even it its basic configuration, the 2015 A3 affords a brandtypical driving experience and comfort with a strong emphasis on sporty attributes. The A3 offers a high level of driving enjoyment.
This has been accomplished by using the proven concept of the MacPherson front suspension in combination with newly developed torsion beam and four link rear suspensions. The torsion beam version of the rear suspension is 33 lb (15 kg) lighter than an equivalent multi-link rear suspension in addition to having aerodynamic advantages. The use of the torsion beam rear suspension or the four-link suspension is dependent on engine horsepower output.
The A3 will also be available with all wheel drive in combination with the four-link rear suspension. An electronic damping control system based on the established Audi magnetic ride system will also be available as an option.
A reduced weight electro-mechanical power steering system with speed dependent assistance (Servotronic) is standard equipment on the A3.
A variable steering ratio is achieved through the special geometry of the rack and pinion system. A range of newly developed steering wheels extends from the conventional four-spoke wheel to the three-spoke multi-function sport steering wheel with leather trim and shift paddles.
The 15 and 16 inch service brakes (engine dependent) are larger than those of the predecessor model and provide excellent braking capability relative to engine power output. A newly developed Continental Mk100 ESP system is being used for the first time by Audi.
CONTENTS
- Suspension system – overall concept
- Suspension
- Overview
- Axles and suspension alignment
- Front suspension
- Four-Link rear suspension
- Suspension alignment and set-up
- Brake system
- Overview
- Design and function
- Service operations
- ESP overview
- System components
- Service operations
- Steering system
- Overview
- ELectro-mechanicaL steering
- Audi magnetic ride
- Overview
- Service operations
- Adaptive cruise control (ACC)
- Overview
- Design and function
- Operation and driver information
- Service and diagnostic operations
- Wheels and tires
- Overview
- Tire Pressure Monitoring System
- eSelf Study Program
Language: English
Format: PDF
Pages: 32
Self Study Program 960143 – The 2015 Audi A3 Running Gear and Suspension System