M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

13 Pin Connnector?

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Old 03-31-2006, 09:35 PM
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13 Pin Connnector?

What's that 13 Pin Connector on the transmission?
Apparently my AT pan needed a new gasket and a 13 Pin Connector replaced cause of some minor leak......
Old 04-01-2006, 10:25 AM
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13 pin connector pilot bushing is a common cause of ATF leaks not to mention the oil pan gasket which have replaced a lot too for 722.6 tranny's. its the link between the electrohydraulic control unit to the electronic transmission control unit which is located at the left footwell.
Old 04-01-2006, 11:23 AM
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Originally Posted by donniebhoy
13 pin connector pilot bushing is a common cause of ATF leaks not to mention the oil pan gasket which have replaced a lot too for 722.6 tranny's. its the link between the electrohydraulic control unit to the electronic transmission control unit which is located at the left footwell.
ic, 500bucks to get it fixed, not too bad seemed like a big job, I guess.....
Old 04-01-2006, 06:34 PM
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the job is so easy. 30 minutes is all it takes.
- remove connector and the pilot bushings next
- drain ATF at the pan
- remove oil pan and filter
- lastly, electric control unit(about 10-20 bolts) attached to the hydraulic unit.
Old 04-03-2006, 12:47 PM
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2001 ML320
I had the same problem. The actual bushing is a $10 part. With all this going on I had my shop change the AT cooler lines, AT filter and fluid as well.

Very happy with the work. I was also releaved of $500 bucks.

This appears to be a common problem with our trucks.

RAN
Old 06-19-2006, 06:40 AM
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ML270CDI
Originally Posted by donniebhoy
the job is so easy. 30 minutes is all it takes.
- remove connector and the pilot bushings next
- drain ATF at the pan
- remove oil pan and filter
- lastly, electric control unit(about 10-20 bolts) attached to the hydraulic unit.
I replaced the seals/connector on my ML but it wasn't necessary to drop the pan or remove the ecu??............the whole job took 20 minutes...

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