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Mercedes C-Class - parking aid malfunction: Beeping for no reason

Data sheet
ManufacturerMercedes
Vehicle modelC-Class (205)
EngineAll models
Year of manufacture2014 - 
SymptomsParking aid malfunction

Important safety note

Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.

Non-specific activation of the parking aid

On the vehicles mentioned above, the parking aid may get activated for no reason. This means that the warning function is triggered without an obstacle. In addition, the function of the parking aid may be fundamentally impaired.

 

At the same time, the following codes, for example, are stored in the error memory: B125823 / B124409 / B125D23 / B124E09 / B125809

 

The cause of the malfunction may be moisture penetrating the wiring harness (multi-connector) on the front parking aid.

 

In order to remedy the situation, the multi-connector should be checked and, if necessary, repaired. The vehicle manufacturer offers a repair kit (A2055403488) and a seal (A0009829110) for this purpose .

 

After completing the repair job, clearing the error memory is recommended.

Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval; indication of the document source is also required. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.

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