Mercedes W204 OM646.811 Boost Ait Temperature 111c
I have W204 C200 OM646.811 2008
Sometimes in the middle of driving the car shakes and hesitates to accelerate and in the moment the RPM keeps jumping between 1500/1800/2000 and then I press until half from the gas pedal and it hits instantelly 3000revs and drives normaly again. I got it checked by MB and other mechanics. The injectors are new, Pressure regulators are new, there is no transmition problems BUT when run on delphi even if the care is not driven two days It shows :
Boost Air Temperature 111 celsius.
When I give gas it keeps switching to 115/111 celsius.
Outside right now is -8 and I just ran the diagnostic with the car just started and before starting the same.
It happens when cold or from time to time. Any advice? I know this is not MAP or MAF sensor....where can I find it because it's driving me nuts.
Thank you
Last edited by DeviAngel; Jan 17, 2024 at 06:06 PM.
Is it possible to have a vaccum leak somewhere? Or maybe the MAP sensor is simply faulty..I am afraid If I plug a new one in it will be the same problem...


