PHEV never uses ICM

David-Kirsch
Fri, 11 Jul 2025 19:11:39 +0000
General Discussion

I have a 2025 GLC350e. This is a PHV with a 54 mile electric only vehicle. In actuality it charges to a 72 mile electric range! In any event, with the big electric only range it is entirely possible that I will go months without the ICM ever turning on. This raises at least a couple of questions:

1. it is bad for the ICM if it never turns on? What if it’s 6 mos, 9 mos, etc.

2. does this raise any issues/problems for the fuel that is in the tank for so long?

3. Are there any other issues related to infrequent ICM use that I should be aware of?

Many thanks
David

14 posts - 11 participants