[W126 Coupe] Running Hot update

[Axel Wulff]

Pavel,

Sounds like the increase in temperature occurs when the revs are low.

This may indicate that the water pump is not working properly and you have 
low water flow. You may want to check out the water pump or/and have it 
replaced.

It does not sound like your problem is related to the thermostat. A high 
temp thermostat will restrict the water flow until the engine temperature 
reaches the point where it wil release. In other words, it reacts to 
temperature and will not be affected by the engine rpm's.



Regards,
Axel J. Wulff
610-731-5453 Cellular
610-572-4611 Home





>From: Pavel <zhur0002 at umn.edu>
>Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>To: Mercedes Web <mbcoupes at mbcoupes.com>
>Subject: [W126 Coupe] Running Hot update
>Date: Mon, 16 Oct 2006 15:51:41 CDT
>
> 
>Here is the update on the sec crew.  Put a brand new behr radiator in
>pulled drain plugs from block drained all the coolant filled it up with MB
>50/50 antifreeze mix.  Started it up got all the air out of the system, the
>stupid thing still sits at 90 unless I rev it up to 2000 rmp then goes back
>to 82 deg instantly, then creeps up to 90.  Stays between 88 90 while
>driving around unless you hammer on it than goes down to 85.  It bugs me
>very much and it is not enjoyable for me to drive my sec anymore.  Is this
>getting caused by my new wahler thermostat?  Why did they do that?  Where
>do I get the original thermostat so my temp gauge does not drive me nuts.
>thanks
>Pavel
>
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