High rev during warm start after control unit update
#1
High rev during warm start after control unit update
2017 c43
Mercedes dealer provided an update for the power control unit today. The car now revs high during a warm start like it does on a cold start. The exhaust also seems a bit louder even with the performance exhaust option. Anyone else experience this?
Mercedes dealer provided an update for the power control unit today. The car now revs high during a warm start like it does on a cold start. The exhaust also seems a bit louder even with the performance exhaust option. Anyone else experience this?
#2
Out Of Control!!
Join Date: Dec 2019
Location: Yours to Discover
Posts: 13,915
Received 2,654 Likes
on
2,257 Posts
PFL205.064 with M276.823 (Oil pump solenoid defeated)
I experience the same too when I got my 2017 C 43 in for an update back in 2019, nothing to worry about as intended behaviour at least for the new update.