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Old 11-05-2013, 03:52 PM
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jay_bob jay_bob is offline
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Join Date: Oct 2011
Location: Columbia, SC
Posts: 3,678
Danger Danger be careful those bolts can break off with little provocation. Then you will be swapping the whole thermostat/water pump housing.

I would definitely get the right gasket and 3 new bolts from dealer.

You will need to let off some of the coolant but not all of it.

Then be careful to properly burp it, you will have introduced a large air bubble in the head.
The OM 642/722.9 powered family
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
2008 ML320 CDI (Older sonís DD)
2008 E320 Bluetec (Younger son's DD)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
gone but living on
1983 240D (body to greazzer, engine to t walgamuth)
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