snoman
Member
- Joined
- Mar 21, 2018
- Messages
- 21
- Reaction score
- 3
- Location
- Surrey, England
- Your Mercedes
- Chrysler 300C CRD 2006
I have a Chrysler 300C CRD with the MB OM642 V6 engine. The original exhaust pressure sensor failed at 32K miles and its replacement failed less than 18 months later (I think at about 36K miles). Both new sensors were supplied by an MB dealer. I wondered if perhaps the connector might have been the problem, so before fitting the third sensor, I tried cleaning the connector terminals with a switch cleaner. That was 3 1/2 yrs ago. Now at 45K miles, the mil light has come on with the same fault (P0471). However, the engine appears to run normally and I have managed to clear the fault with my TorquePro App. Should the fault return, I will try cleaning up the contacts again and checking the wiring. It may just be co-incidence, but the fault seems to occur shortly after replacing a glowplug, or more recently, the glowplug module.
Has any other owner experienced problems with this sensor? I haven't had problems with any other sensor.
When I bought the first replacement, I caught sight of the inventory screen on the sales desk and noticed that more than 2,000 of these sensors had been sold in the previous 12 months and that the type numbers had changed several times within this period.
Has any other owner experienced problems with this sensor? I haven't had problems with any other sensor.
When I bought the first replacement, I caught sight of the inventory screen on the sales desk and noticed that more than 2,000 of these sensors had been sold in the previous 12 months and that the type numbers had changed several times within this period.