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W166 Oil Cooler Seals - ML-250 too?

machineage

New Member
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Oct 16, 2021
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Location
UK
Car
Prospective M-Class Owner
Hi all

So I've been thinking of getting a W166 ML, and having carried out some initial research, it would appear the oil cooler seal is a well known issue on the ML-350. I have read from some owners who have had them replaced at great expense several times. What I don't know is how prevalent this is? Some are saying that all ML-350 will have this issue at some point, even with the newest replacement seals.

So I'm also looking at the ML-250. Initial googling seems to suggest the OM651 doesn't suffer the same fate.

Any other issues on the ML-250 I should be wary of?

Many thanks 🙂
 

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