Self Study Program 633 – Audi Q7 (type 4M) Chassis
VAG SSP 633. The new Audi Q7 is a comfortable companion. It tracks smoothly and confidently on the motorway and spoils its passengers with a high level of rolling comfort. On twisting country roads, it is manageable, precise and agile, and it also keeps going when the asphalt stops. Compared with the previous model, the center of mass of the big SUV has been lowered by 50 mm, in part by installing the engine lower.
The chassis also features numerous changes. Both the front and rear axles are five-link designs, replacing the double wishbone axles of the previous model. The new elastomer bearings and the separate springs and dampers at the rear axle respond very sensitively. The new electromechanical power steering with servotronic function is very efficient. It provides for direct steering response, and several of the new driver assistance systems would not be possible without it.
Compared with the previous model, the chassis of the new Audi Q7 is over 100 kg lighter. The links of the wheel suspensions, for example, are now made of aluminium and high-strength steel. The front axle prop shafts are hollow, and the pivot bearings are aluminium forgings.
Audi offers another groundbreaking innovation as an option: all-wheel steering.
The new Audi Q7 already offers excellent comfort even with the standard steel suspension. Rolling is even smoother with the adaptive air suspension, which is managed by a newly developed central vehicle control unit that drives all body control systems. The new controllers developed by Audi for the air suspension and active damping vary the body height and body comfort as a function of the situation.
The new Audi Q7 comes as standard with 18-inch wheels and 255/60 tires. Audi and quattro GmbH offer a large number of additional wheels in sizes up to 21 inches as options. Large, vented brake discs bring the SUV safely to a stop. They are gripped up front by aluminium six-piston calipers. The electromechanical parking brake, updated with convenient hill hold and startup functions, acts on the rear wheels.
An electronic hill descent assist complements the wealth of equipment. New ESC and ACC generations provide the basis for a number of driver assistance systems.
Quattro all-wheel drive as standard with all Audi Q7 chassis. The following chassis versions are offered:
- Standard chassis (production control number 1BA)
The standard suspension as basic equipment features steel springs and unregulated damping. - Chassis with air suspension and electronic damper control (adaptive air suspension, 1BK)
This chassis version is optional. - Sport chassis with air suspension and electronic damper control (adaptive air suspension, 2MA)
The sport chassis with air suspension is optional too.
CONTENTS
- Axles and chassis alignment
- Front axle
- Rear axle
- Chassis alignment / setup
- Chassis with air suspension and electronic damper control (adaptive air suspension)
- Overview
- Design and function
- System function
- Operation and driver information
- Service operations
- Brake system
- Overview
- Wheel braking systems
- Brake servo, master brake cylinder, pedal assembly
- ESC
- Steering system
- Overview
- System components and operation
- All-wheel steering
- Overview
- Technical implementation
- System components
- Function of the overall system
- Basic function
- Additional functions/special operating states
- Operation and driver information
- Service operations
- Adaptive Cruise Control (ACC)
- System overview
- Design and basic function of system components
- Design and function of system components
- Service operations
- Wheels and tyres
- Overview
- Low tyre pressure indicator
- Tyre pressure monitoring system
The Self Study Programme teaches a basic knowledge of the design and mode of operation of new models, new automotive components or new technologies.
It is not a Repair Manual! Figures are given for explanatory purposes only and refer to the data valid at the time of preparation of the SSP. This content is not updated.
For further information on maintenance and repair work, always refer to the current technical literature.
Language: English
Format: PDF
Pages: 56
Self Study Program 633 – Audi Q7 (type 4M) Chassis PDF free online