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Discussion Starter · #1 ·
So, I am helping a friend source a good candidate purchase of M5. I found one that was a 'fire sale' but has some issues. No problem, he can turn a wrench better than I can so we can deal with most issues...

One thing he said the owner told him was the car was SEL and throwing a 'compression' code sometimes.

I can't access the owner or my friend for a bit but was hoping to give him some answer if possible.

Anyone know what a 'compression code' might be? sounds like it might be a deal breaker.
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