I dunno about a 603 but a 617 will overheat. The thermostat blocks the return
passage through the block and diverts coolant to the radiator.
Its been my experience the engine will do fine for maybe 30 minutes or until
you shut it off and restart, at that point no coolant will go to the radiator
and the engine will overheat.
-Curt
Date: Thu, 1 Dec 2011 12:10:57 -0800
From: Alex Chamberlain <apchamberl...@gmail.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Subject: Re: [MBZ] OM603 coolant change procedure?
Message-ID:
<CABHyH=b9-Z4gaN=NqZ9=H-d=qmpz+byqdgjtezpaua7yusx...@mail.gmail.com>
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On Dec 1, 2011 10:42 AM, "Max" <meadedil...@bellsouth.net> wrote:
>
> I used a old t-stat wedged open with a piece of plastic.
That's what I had half-remembered from reading about the procedure before!
What is the purpose of the jammed-open termostat? Why can't you just
remove it as with other cars?
Alex
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