Use a hand held infrared temperature gun, and check the temps at different locations around the engine.

hope you are something simple like a temp sensor or t-stat.

I pulled out my radiator one time and was amazed at how much crap was between it and the ac condensor. check for air flow.

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works