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achim_lion3

Citan cruise control issue

Cruise control has stopped working on my 2020 Mercedes Citan diesel with 282663 km. It just won't engage. It's throwing an error code. Any ideas?

Summary of the thread

The cruise control on a 2020 Mercedes Citan diesel stopped working, displaying an error code. Possible causes suggested included a blown fuse, a faulty clock spring, or issues with the throttle position sensor wiring. The problem was ultimately traced to a corroded connector in the cruise control wiring, which was resolved at a local garage.

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4 comment(s)

heinzcrystal23

I had a similar cruise control issue on my Citan. Check the fuse box first, but if the error is persistent, it might be the clock spring. Have you checked the wiring around the throttle position sensor?

achim_lion3 (community.author)

Where exactly is the fuse for the cruise control located in the fuse box? How would I check the throttle position sensor wiring? Is it easy to get to?

heinzcrystal23

The fuse box layout should be in your owner's manual, but I suggest you take it to the workshop. Diagnosing electrical faults can be tricky and requires proper tools. It may be a faulty cable or plug.

achim_lion3 (community.author)

Took it to the local garage. It was a corroded connector in the cruise control wiring, just like they suspected. 95€ all in. Thanks for the advice!

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MERCEDES

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CITAN