Thank you for the quick reply. It gets to 90deg in around 15 minutes but it cools down to around 83deg if I am any stretch of level road. If the temperature sensor was bad then why is it getting to temperature and cools down. Also I had a egr valve change and new blue coolant was put in not the orange typeWelcome!
It would be helpful to know how the. thermostat is behaving ie, how long it takes for the engine to get to 90 degrees and whether it stays there or fluctuates?
Thank you so muchMy E350cdi had a new thermostat at 65K miles and is a very common failure on these engines. If the stat fluctuates it’s probably starting to fail and the vibration may be due to the ECU responding by over-fuelling mine did.
If you decide to fit a new stat buy genuine from MB, not cheap but as the stat provides data to the ECU it’s the best way to go
Thank you once again. I will sort this week and reply to you. Thank youIt’s reasonably accessible at the front of the engine, if you’re having it fitted at an MB specialist expect to pay £230ish fitted, the part is £150ish (not cheap) but I wouldn’t recommend using aftermarket parts