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      01-29-2013, 08:16 AM   #6
Jules59's Avatar
Drives: E91
Join Date: Nov 2010
Location: UK. Warwickshire

Posts: 403
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Originally Posted by Dave_3 View Post
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.
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