Symptom Related Diagnostic Procedures

Information and verification, front/rear parking assistance

Symptom and function description
The parking assistance system is activated automatically, when the vehicle is started and the text message "Parking assistance active, Switch off with Exit" is displayed in the display of the center console.
- Parking assistance is active at speeds below 15 km/h. At higher speeds, the system deactivates. When the speed drops below 10 km/h, the system is activated again.
- The closer the vehicle gets to the object in front or behind, the more frequent the signals become. At a distance of approx. 30 cm, the tone should be constant.

Rear parking assistance
- Parking assistance in reverse activates when reverse is engaged.
- The measurement range behind the vehicle is approximately 1.5 m. The minimum size of the object that can be detected is a pipe shaped object with a minimum length of 850 mm and a minimum diameter of 85 mm.

Front parking assistance
- Parking assistance forwards is active at speeds below 15 km/h.
- The measurement range in front of the vehicle is approximately 0.8 m. The minimum size of the object that can be detected is a pipe shaped object with a minimum length of 850 mm and a minimum diameter of 85 mm.

Hint:
- A message is shown in the text display, in the driver information module, in case of many malfunctions in the parking assistance system.
- Snow and ice on the sensors can impair the function.
- If a trailer is connected or a bicycle holder is on the tow hitch, the system must be switched off.
- The front parking assistance cannot be combined with auxiliary lamps as the sensors react to them.

Verification
Access to the vehicle is necessary for the following checks.
- Ignition on or start the engine.
- Engage reverse gear.

Does the text "Parking assistance active, switch off with Exit" appear in the display?
If the text "Parking assistance inactive, activate with Enter" appears, press Enter to activate.

Is sound emitted from the loudspeakers, if there is an object behind the vehicle?
Test by placing an object or having a person stand behind the vehicle. Move the object/person both closer to and further away from the vehicle and check that the sound frequency increases the closer one gets. At a distance of approx. 30 cm, the tone should be constant.
On left-hand drive vehicles, the sound is emitted from the right-hand rear loudspeakers. On right-hand drive vehicles, the sound is emitted from the left-hand rear loudspeakers.
If the vehicle is equipped with front parking warning, this is tested in the same way, by placing an object or having a person stand in front of the vehicle. The sound must come from the front loudspeaker on the driver's side of the vehicle.

Is the function OK?

Yes - No Fault Found

No - FAULT FOUND

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