Table of contents: Control devices and electrical… ↓ Suspension and steering ↓ Power transmission ↓ Check the serviceability of the… ↓
Control devices and electrical equipment
1. Check the operation of control devices and electrical equipment.
2. Make sure all control instruments show correct values, turn on all electrical equipment to ensure it is functioning properly.
Suspension and steering
3. Check the normal functioning of the steering and wheel suspension, how the car "holds the road".
4. While driving, make sure there are no unusual knocks, vibrations or noises.
5. Make sure that the car "obeys the steering wheel", without jerking or yawing; check for noise in the suspension when driving around turns and bumps.
Power transmission
6. Check the engine, clutch, and transmission for serviceability.
7. Check for any unusual noises in the engine, clutch or transmission.
8. Make sure that the engine runs quietly at idle speed, without dips and does not "run away" when the gas is increased.
9. Check the operation of the clutch, where available. Engaging and disengaging the clutch should be smooth, without jerks. The clutch pedal should not have an increased stroke. Make sure there is no noise when the clutch pedal is pressed and released.
10. Make sure that gear shifting is smooth, easy and quiet.
11. On models with automatic transmission, make sure that gear changes are smooth, without jerks and without an increase in speed at the moment of shifting. When parked with the engine running, make sure that all positions of the automatic transmission selector can be selected without difficulty. If any problems occur, contact your Audi/VAG dealer.
Check the serviceability of the brake system
12. Make sure that the vehicle does not pull to one side when braking and that the wheels do not lock prematurely when the brake pedal is pressed sharply.
13. Check for vibration in the transmission when braking.
14. Check the serviceability of the handbrake. No excessive travel of its lever. Reliable holding of the car on a slope.
15. Check the operation of the brake booster. To do this, press the brake pedal four or five times and, holding it down, start the engine. As soon as the engine starts, the brake pedal should noticeably "fall" under the influence of the vacuum created by the running engine. Let the engine run for a couple of minutes and turn it off. If you now press the pedal again, you can hear a slight whistle from the servo booster. After four or five presses, the whistle should no longer be audible and the pedal should become noticeably harder.