Mercedes E 350 Cabrio - Active Distance Assist
| Data sheet | |
|---|---|
| Manufacturer | Mercedes |
| Vehicle model | E 350 CABRIO (A207) |
| Engine | 3.5i V6 24 V CGI |
| Year of manufacture | 2012 |
| Symptoms | Sporadic failure of the Active Distance Assist |
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their work. The information provided on this website is intended for use by suitably qualified personnel only.
Sporadic failure of the Active Distance Assist
The Active Distance Assist may fail sporadically in the above-mentioned vehicle type. This fault pattern mainly occurs in wet conditions. The entries C163AFA and C163AFB, radar sensor dirty or defective, can be stored in the error memory.
In such a case, special attention should be paid to the cover (radome) of the front radar sensor. The cover (emblem/logo) is installed in the front grille and consists of several plastic layers that are welded together. Water can penetrate through cracks or defects caused by stone chips, for example, and the radar beams of the sensor are damped as a result. This results in an error message and system failure.
In order to reproduce the required behaviour, you can, for example, proceed as follows: Remove the cover (emblem/logo) and place in soapy water for approx. 6 hours. Then refit the component and carry out a test drive.
If the problem still occurs during the subsequent test drive, the cover (emblem/logo) should be replaced. Then delete the error memory and finally carry out a test drive.
IMPORTANT
Please always observe in such cases the maintenance and repair notes provided by the vehicle manufacturer.
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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