rallen
Senior Member
- Joined
- Aug 29, 2005
- Messages
- 342
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- Your Mercedes
- E320 2001 / CLS 320 2007 / SLK 280 2006
Hello
Some long time ago the E320 developed a fault - it would leak oil from the auto-gearbox, but this oil would travel upwards into the wiring loom and into one of the ECU cartridges that you'd need a glass to empty it into. This immersing of the ECU in oil would also cause gear change issues and car performance issues.
We used the car for some time with me simply draining the ECU and sometimes also rinsing it in petrol to get rid of the oil.
Then we took the car to a garage (can't recall where) where they replaced the auto-gearbox wiring loom oil seal.
The oil travels within the cables, ie between the cable insulation and the copper core. Looking at the wiring loom, it is completely dry, you would never imagine there was oil inside each wire.
As I have never seen this "seal" can someone please describe the mechanism to me? I am finding it hard to imagine how oil escapes the auto gear box, somehow finds its way into the wires and then travels all the way up into the ECU.
Thanks
Some long time ago the E320 developed a fault - it would leak oil from the auto-gearbox, but this oil would travel upwards into the wiring loom and into one of the ECU cartridges that you'd need a glass to empty it into. This immersing of the ECU in oil would also cause gear change issues and car performance issues.
We used the car for some time with me simply draining the ECU and sometimes also rinsing it in petrol to get rid of the oil.
Then we took the car to a garage (can't recall where) where they replaced the auto-gearbox wiring loom oil seal.
The oil travels within the cables, ie between the cable insulation and the copper core. Looking at the wiring loom, it is completely dry, you would never imagine there was oil inside each wire.
As I have never seen this "seal" can someone please describe the mechanism to me? I am finding it hard to imagine how oil escapes the auto gear box, somehow finds its way into the wires and then travels all the way up into the ECU.
Thanks