Question on Oil Leak Diagnosis

Hi there, my 2009 Cooper S odo 45k has a major oil leak from the pulley side oilseal. The workshop has replaced it already 3 times within 3000 miles. The first two were genuine Mini seals so we tried an alternative aftermarket version Renz, Germany. It was ok for 2000 miles but recently it started leaking again. The crankshaft surface seems ok, no signs of damage.

Any suggestions?

Thanks for your reply in advance.

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This post was auto-generated based upon a question asked on our tech article page here: MINI Cooper R56 Oil Leak Diagnosis (2007-2011) | Pelican Parts DIY Maintenance Article

[Nick at Pelican Parts]

If they don't get the seal in right the first time, it will leak. It might be worth asking if they have the MINI tool to use when installing.

- Nick

[Dave at Pelican Parts]

It's also worth carefully inspecting the shaft where the seal rides, and the surface in the block that the seal seats into. If either of those are damaged, it can lead to leaks.

--DD