Initial Inspection and Diagnostic Overview
Test driving
Test driving is carried out to check that the car is in perfect condition when it leaves the workshop
Test driving should be carried out at every service
Attention must always be paid to the traffic conditions and safety during all test driving
Make the following checks while test driving and correct if necessary:
Check before starting engine that:
- ignition and steering wheel lock and remote control function.
- indicator lamps and instruments function, including general warning lamp and SRS and ABS warning lamps if appropriate.
Automatic transmission:
- starter motor only functions in position P and N and back-up (reversing) lamp only in position R.
Check when starting the engine that:
- the starter motor functions normally without strange noise.
- the engine starts normally.
- the brake pedal travels slightly
Check when starting driving that:
- the clutch does not chatter or slip.
- acceleration is normal and that no "pinking" or other abnormalities occur.
- the transmission functions normally with no abnormal noise.
- there is no play or abnormal stiffness in the steering.
- the steering wheel position is correct and that it centers correctly after turning.
- no imbalance in the wheels.
- no vibration or abnormal noise from the transmission.
Continue driving and check that:
- no misalignment occurs and that the car does not feel unstable.
- the engine reaches normal operating temperature within the correct time.
- no imbalance in the wheels at normal road speed.
- no abnormal noise is heard from the bodywork, front end or rear suspension.
- no abnormal wind noise occurs.
- climate control and controls function normally.
Check while braking that:
- pedal force is normal and that there is no vibration.
Note! Cars with ABS give brake pulses if there is a risk of wheel lock-up.
- parking brake function is optimum.
Additionally for automatic transmission:
- that servo function is normal (not ABS).
- the shift-lock in position P functions and that the lever remains in position.
- no slippage occurs at stalling speed in position D or R.
Note! Attention must always be paid to traffic conditions and safety.
- the transmission changes down and the car engine brakes when the lever is moved from a higher to a lower gear position (with all consideration to the current traffic situation and road requirements).
Check after the test drive that:
- the engine does not backfire when shut-off.
- there is no leakage in the engine compartment.
- The service components are installed and that nothing abnormal can be seen.
- wipe off any spilled oil and fingerprints.
- no obvious faults can be seen in the bodywork or interior trim.
Wipe the steering wheel and gear selector lever and check that the vehicle does not show any traces of the visit to the workshop.
Going through the service sheet
Go through the service sheet with the customer.
Inform the customer of what has been done in the servicing and any observations from the test drive.
Book an appointment with the customer if further repair work is recommended to ensure trouble-free motoring.
Treat the customer in a manner that gives faith in the workshops care of his car.
Welcome the customer back for his next service!