E350 CDI Engine Temperature (2013)

[BoBdOg!]

Hi all,

I'm after some advice please.

[E350 Cabriolet CDI (265bhp) 2013 W212]

Ive noticed my engine temperature seems to be a little low. When driving, normally I would notice it sat at a constant 90°C. However this weekend I went for a pretty long drive (around 100 miles) and the highest it got cruising was 65°C. Unless I was stationary it would reach 80°C. I could only get it to 90°C in sport mode and holding the revs higher. As I was cruising along on the motorway It was sat around 65°C sometimes dropping to 60°C.
Is this normal? Outside air temperature was around 10°C and I'm pretty sure it has never been this low even in colder conditions. My mind is telling me it would always be sat at 90°C no matter what.

Thanks in advance.

 

[saff]

Sounds like a faulty thermostat, seems to be a common issue. I had similar issues and a new 'stat cured it. It should get to 90 deg (mine should anyway) and stay there regardless of driving conditions.

 

[BoBdOg!]

Sounds like a faulty thermostat, seems to be a common issue. I had similar issues and a new 'stat cured it. It should get to 90 deg (mine should anyway) and stay there regardless of driving conditions.

Thanks for your reply, is it an expensive job?

 

[saff]

It depends, if you can do it yourself then not really. Maybe 1-2 hours labour from an indie.

 

[MrGreedy]

Definitely should always be at 90 degrees once fully warm (5-10 mins), only ever going HIGHER if you are giving it a thrashing in warmer weather

 

[HB]

Had ours changed a week ago with same symptoms. About £150 from an Indy.

 

[TeddyRuxpin]

It really should be 1/2 hour labour from a MB indie that does this all the time! Expect it to be 1 hour labour though. The part itself from MB is expensive however, unfortunately.

I managed to do it myself and it wasn't too tricky.

 

[BoBdOg!]

It really should be 1/2 hour labour from a MB indie that does this all the time! Expect it to be 1 hour labour though. The part itself from MB is expensive however, unfortunately.

I managed to do it myself and it wasn't too tricky.

I don't suppose you know of a guide for my model do you? Thanks for all your help guys

 

[400ixl]

Just in case you start looking by platform number, your car is a W207 (A207 to be precise) not a W212. They are completely different platforms, although in this case the engine will be the same. But just for reference so you know for the future.

The Cab/Coupe are built on a former C class platform rather than the E class one for the saloon / estate. They just have the same look.