Cold-Start revving issue in a Mercedes C180

[Ezekiel_Dom]

My daughter’s 2008 Mercedes C180 has been revving up to 3,500 rpm in low gear on morning starts, but no error codes appear. I tested it, and switching from Comfort to Manual mode seemed to reset it, though I couldn’t recreate the issue. The previous owner had the transmission fluid flushed with a non-recommended CVT oil, which I’ve heard can sometimes cause shifting problems. Could this be affecting cold starts?

 

[TomCruise007]

The non-recommended CVT oil could be affecting cold starts and causing the revving issue. It might lead to shifting problems, so checking the fluid level and using the correct oil could help resolve this.

 

[Ezekiel_Dom]

Alrigjt, I'll check the fluid level and consider switching to the recommended oil. Thanks