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Transmission leak? Advice please.

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Old Jun 1, 2014 | 05:38 PM
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CL203 C220 CDI coupe & W114 203.6, W221 S500 4Matic
Transmission leak? Advice please.
Hello All,

Last week I changed my oil and noticed this dampness on the transmission. Anything serious to worry about? Advice please.

Thanks!
Attached Thumbnails Transmission leak? Advice please.-photo-1.jpg   Transmission leak? Advice please.-photo-2.jpg  
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Old Jun 1, 2014 | 05:51 PM
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2000 (W202 C200) & 2000 (W202 C55)
Seems you have a leak in the oil pan gasket, you will have a serious problem if you leave it more..!!

ZAYED,,
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Old Jun 1, 2014 | 06:01 PM
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CL203 C220 CDI coupe & W114 203.6, W221 S500 4Matic
Originally Posted by cm60k
Seems you have a leak in the oil pan gasket, you will have a serious problem if you leave it more..!!

ZAYED,,
It's coming from above, defiantly not the oil pan gasket. In the first photo you can see a black hose or wire above the pan on the side of the transmission which seems to be the origin of the leak.

It's a 2005 C220 CDI Coupe. With the 5G transmission.

I've searched the TCU wicking problem but this looks differnt to the wire harness plug photos in those threads? Is this the same?
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Old Jun 1, 2014 | 06:21 PM
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From: A.D., U.A.E
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Ah sorry, first photo confused me,,

if leak comes from above could be,

the black tube o-ring or the red plug above not set properly..!

ZAYED,,
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Old Jun 1, 2014 | 06:26 PM
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2001 C320
Not sure about the CDI, but it looks like it could be coming from the rear main seal oil leak that's common on a lot of W203s. What's your oil consumption like?
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Old Jun 1, 2014 | 06:28 PM
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Forget to ask, did you replace the pilot spacer..?, its a common leak as well....

Name: pilot spacer.jpg Views: 575 Size: 5.1 KB

Transmission leak? Advice please.-spacer.jpg

ZAYED,,
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Old Jun 3, 2014 | 04:28 PM
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CL203 C220 CDI coupe & W114 203.6, W221 S500 4Matic
I have not changed the TCU plug seals yet. Having made this research I'm paranoid about finding ATF fluid in the footwell!

I've has this car since new in it's first two months I had the classic drained transmission due to a misplaced seal during assembly problem.
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Old Jun 4, 2014 | 12:07 AM
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From: A.D., U.A.E
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I hope oil not sneaks to your TCU, It's soo important to check it...!!

ZAYED,,
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Old Jun 4, 2014 | 05:17 AM
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