Oil leak - Mercedes Benz SLK Forum

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#1 Old 03-26-2017
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Oil leak

I've got a 320 with 50k on it.

From the MoT I've been told there is a film of automatic transmission fluid on the bottom of the gearbox. They could not source it. I've had a look and it seems fairly uniform. Are there any probable sources I could check? It's a fine film and there's no drips on the garage floor (hence not realising the problem).

When I bought the car it had just been 'thoroughly' serviced by the dealer but after a couple of weeks I noted that there was oil coming from the power steering reservoir. It had been overfilled. (Very thorough!). Could this be the source of the leak?

I was going to get the autobox fluid changed at 60k so it's no big deal to do it now.

As an aside, I keep getting told off for not posting whenever I log on.
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#2 Old 03-26-2017
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Well done for Posting.

Havent had this issue myself, hope it works out for you man.

Good luck,

RLander.
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#3 Old 03-26-2017
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Well done for Posting.

Havent had this issue myself, hope it works out for you man.

Good luck,

RLander.
I feel selfish because it makes it seem as if I only come on here to learn. Given the knowledge of most, I've got little to add.
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#4 Old 03-26-2017
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Have the transmission serviced and be sure they replace the pan gasket. This is not so much a paper gasket as a rubber seal, not tightened too tight.
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#5 Old 03-26-2017
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Have the transmission serviced and be sure they replace the pan gasket. This is not so much a paper gasket as a rubber seal, not tightened too tight.
Thanks for that. Will do.
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#6 Old 03-26-2017
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I'd bet that it's the pilot bushing that is leaking. It's really a common issue on these trannys. Good news is it's inexpensive and fairly easy to replace. Google it when you get a moment and you'll see tons of 'how to' vids.
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#7 Old 03-26-2017
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Originally Posted by Mn car guy View Post
I'd bet that it's the pilot bushing that is leaking. It's really a common issue on these trannys. Good news is it's inexpensive and fairly easy to replace. Google it when you get a moment and you'll see tons of 'how to' vids.
Thanks for that. I'll go under and have a look.
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