Om603 Solving temp swings

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Om603 Solving temp swings

#17

07-24-2019, 06:16 PM

97 SL320

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Join Date: Jan 2012

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Quote:

Originally Posted by dieseldiehard

My OM604 cooling has temp fluctuations that are hardly anything compared to the OM603 but oddly my M104 seems to have a lot of temp variations, the engines use almost the same block and I assume the cooling systems are similar but I haven't really examined them closely.

Have you pulled / inspected the M104 stat?

See my post 12 and 14 95 C280 Overheating

The M104 uses a stat that regulates water going to the rad rather than coming from the rad like the OM.

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