Test driving
Test drive the car according to the driving schedule below to check whether the fault is still active. The test drive is compiled in order to create the conditions in which the diagnostic trouble code (DTC) will be stored again if the fault is active.
The TEST MODE function can be used to provoke any diagnostic trouble codes (DTC). The function reduces the conditions for how quickly diagnostic trouble codes (DTCs) are stored in the control module and the test drive becomes easier.
- Start the engine
- Activate TEST MODE.NOTE:
Do not switch off the engine
- Disconnect the VIDA station. Test drive the car as described below.WARNING:
Please observe traffic regulations.
NOTE:Before test driving, the transmission should be at operating temperature, approximately 80-90 °C.
Shift the gear selector to position 3 (third gear with Geartronic). Carefully accelerate to 85 km/h. Maintain the same speed for a few seconds. Carefully accelerate for approximately 30 seconds to increase the engine torque.
HINT: The car must be driven at an engine speed where the lock-up function is normally fully activated and not slipping. The following gear positions and speeds are also possible:
- 120 km/h gear position D
- 85 km/h gear position 3.
Criteria for diagnostic trouble code (DTC):
- The transmission fluid temperature must exceed 30 °C
- No shifting during the evaluation period
- Positive engine torque (no engine braking)
- Gear selector in position D, 3 or 2 (4T65EV).
Gear selector in Geartronic position and gears 4, 3 or 2 (4T65EV-GT)
- Speed 85 km/h for at least 30 seconds.
- Continue