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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 06-03-2012, 07:44 AM   #1 (permalink)
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Rocker Cover / Filler Oil Leak

325 tds M51 Engine (1996)

Maybe I'm getting a bit over-concerned on this one.

Small leak from oil filler cap. I don't know if it indicates any fault that could get worse later. It literally amounts to a drop or two of oil escaping from the oil filler cap and onto the top of the rocker box after a short run.

I could be wrong but I thought that such leaks indicate a blocked breather but I've looked for the breather and can't find it.

Any pointers???
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Old 06-03-2012, 09:21 AM   #2 (permalink)
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Try replacing the cap and see what happens. Probably just worn out.
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Old 06-03-2012, 10:06 AM   #3 (permalink)
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Thanks Lord Vader,

You could be right. I'll try that. At 160K miles it would surprise me if it's a bit tired, not to say gasping its last breath )

Do you know where the breather is though?
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Old 06-03-2012, 05:15 PM   #4 (permalink)
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To replace the breather its located next too the air filter when you remove the cover.

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