Originally Posted by Dave_3
I've seen quite a few posts about coolant temperatures on the 335D - mostly in regards to EGR and main thermostats. Some as high as 90+.
What is the factory defined operating temperature for the coolant ? Does anyone know what the defined range is, rather than observed values ? And is it the same for pre and post ED variants ?
All I can say is that my remapped 330D runs 92-98C, which is pretty normal for these engines I'm told. Certainly 85C is too cold for a diesel to be efficient IMO. Both my Skoda VRSs all ran 90+ with and without re-maps.
Whats your MPG like? Its often poor if the diesel runs cool.