Check Engine Light P0299 Turbo Underboost 2015 C300
Newbie
Joined: May 2021
Posts: 1
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2015 mercedes c300
2015 c300 p0299 help
I just came across this exact problem, I have no burst in the hoses, this usually happens when I go from 3 to 4 gear or , 3rd seems to be the issue the rpm strikes to 4k and acceleration drops completely and it doesn’t shift to 4th until I do it manually. I would like to think this is a water pump issue, I wanna take it to a shop but they are thieves and liars around my area any suggestions??? 75k miles
Super Member
Joined: Oct 2014
Posts: 500
Likes: 15
W205
I took my C back to the dealer with the P0299 code, they said the turbo charge is shot. Total cost to replace and new hoses along with changing a leaked gas lines, $14,000; luckily it is covered under my extended warranty at 55K miles 6.5 yo. Did anyone else experienced turbo charge failures?
