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+---- Thread: Mercedes CLA 118 Tow Bar Problem (/Thread-Mercedes-CLA-118-Tow-Bar-Problem)
Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-21-2026
I have installed a Tow Bar on my Vehicle. The problem is, that nothing happens when I actuate the switch. I then noticed that the control unit indicates the Tow Bar has not been initialized (Image Initialize).
But i can´t initialize ,upon checking the actual values, I saw that the Tow Bar is listed as "unlocked"!?
However, it *is* locked.
I then proceeded to measure the wiring.
Measuring between (Image Schematic)Sens_GND and Sen_2 (Pins 5 and 7): Pin 5 shows continuity, but Pin 7 does not. I tried grounding both pins, but the status display in the actual values did not change not even when I actuated the switch.(Image Values)
When the Tow Bar is locked. Witch SEN2 Pin 5 & 7 has continuity.
RE: Mercedes CLA 118 Tow Bar Problem - Anturage - 05-21-2026
Initial startup was not performed.
RE: Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-21-2026
(05-21-2026, 09:39 PM)Anturage Wrote: Initial startup was not performed.
Have you read my Post carefuly!? It doenst work because the restriciton Tow bar is locked is not complete
RE: Mercedes CLA 118 Tow Bar Problem - Anturage - 05-21-2026
Read second time - same solution
RE: Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-21-2026
(05-21-2026, 10:07 PM)Anturage Wrote: Read second time - same solution
Do you see in the Picture?
But i found the Failure. It is mechaniclly blocked.
RE: Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-22-2026
I plug off the Motor. What does the Shaft Do?
RE: Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-23-2026
So i fixt it with WD40
Another Question.: Has anyone a Backup of Coding from the Tm205 please!?
RE: Mercedes CLA 118 Tow Bar Problem - AMC. - 05-24-2026
(05-23-2026, 03:22 PM)Sebi76 Wrote: So i fixt it with WD40
Another Question.: Has anyone a Backup of Coding from the Tm205 please!?
I have, write pm for which car do you need it
RE: Mercedes CLA 118 Tow Bar Problem - Sebi76 - 05-25-2026
(05-24-2026, 03:22 PM)AMC. Wrote:That works for me. Perfect Thanks(05-23-2026, 03:22 PM)Sebi76 Wrote: So i fixt it with WD40
Another Question.: Has anyone a Backup of Coding from the Tm205 please!?
I have, write pm for which car do you need it