Operation CHARM: Car repair manuals for everyone.

Procedures







Test Drive

The following checks depend on the vehicle equipment level and the available testing possibilities (city or rural).

During the road test, check the following:

- Engine: Performance, stalling, idle, acceleration

- Clutch: Driving off, pedal force, smell

- Shift: Easy movement, shift lever position

- Automatic Transmission, Selector lever position, shift lock / ignition key interlock, shift behavior, display in instrument cluster

- Foot and parking brake: Function, free travel and effectiveness, pulling to one side, chattering, squeal

- ABS-Function: When braking with activated ABS, the brake pedal must pulse noticeably.

- Steering: Function, steering free-play, steering wheel center position when driving straight ahead.

- Power roof: Function

- Radio and Radio Navigation System, Function, reception, SCV, objectionable noise

- Multifunction indicator (MFI): Functions

- Air conditioning, check function. At low temperatures, test the air conditioning function in the workshop.

- Vehicle: Pulling to one side while driving straight ahead (level road)

- Imbalance: Wheels, axle joints, driveshafts

- Wheel bearings: Noise

- Engine: Hot-start function