Oil in Engine Harness

[Digger1589]

I own a 2001 W203 C180, been in the local dealership for last week with communication issues told car was fixed but auto gearbox would not change gears. Been told today they have found oil at the gearbox ECU which they have quoted £768 to replace!! Need some advice, different sites have quoted that you can remove the wiring harness clean and replace it and all will be ok. Has anybody had issues like this before and if so how did you resolve it? Final quote from dealer could run into 4 figures to resolve the issue. Help and advice needed.

 

[renault12ts]

It's common enough...the price seems extortionate.

 

[markjay]

I don't know the answer to your question, but... at this age you'd be better of with an indie rather than a dealer, apart from being on the expensive side in general dealers tend to replace complete units and not attempt any repairs. BlackC55 is your man, whether the loom is cleanable or a new loom and TCU needed... where about in the UK are you?

BTW, your thread says 'Oil in Engine Harness' but the post suggests that oil is in the transmission loom?

 

[Digger1589]

I don't know the answer to your question, but... at this age you'd be better of with an indie rather than a dealer, apart from being on the expensive side in general dealers tend to replace complete units and not attempt any repairs. BlackC55 is your man, whether the loom is cleanable or a new loom and TCU needed... where about in the UK are you?

BTW, your thread says 'Oil in Engine Harness' but the post suggests that oil is in the transmission loom?

Spoke to the garage today and yes your right they did mean the transmission loom. I'm just waiting to get the car back home before I decide next coarse of action. ie do it myself or pay aomeone to do it for me. Luckly still got my old W202 to run around in so time not a problem.

 

[ricky s]

The same thing was discovered at the Eurocharged event that Savman organised, jerry was pulling the TCU's and pouring the oil out, he just cleaned them off, did his remapping thing, and plugged it back in, I do not recall any issue's afterwards. Weather the C, E and CLS 55 TCU and the OP's are as tolerant as each other I do not know, other's might! but would seem to me if one can be cleaned off and still work, why not others.

 

[sjmaxwell]

The same thing was discovered at the Eurocharged event that Savman organised, jerry was pulling the TCU's and pouring the oil out, he just cleaned them off, did his remapping thing, and plugged it back in, I do not recall any issue's afterwards. Weather the C, E and CLS 55 TCU and the OP's are as tolerant as each other I do not know, other's might! but would seem to me if one can be cleaned off and still work, why not others.

I've had 2 CLKs with a leak from the plug socket in the transmission which is where the oil comes from, both carried on working with no issues and only identified themselves by the faint smell of burning oil, they didn't affect the transmission modules which are sited in the passenger footwell - I just got the leak fixed and cleaned out as much of the mess that I could

 

[louwdj]

Shortly after I bought a 2004 W203, C220 CDI the autobox went into limp mode. No damage to the gearbox ecu but Indie replaced the wiring loom and card at a cost of around UKP800 (sorry my laptop does not have Pound sign). According to him it was not possible to 'unsaturate' the loom.

 

[sjmaxwell]

It seems that if you catch the leak before any issues manifest themselves that you have a chance of a less expensive repair bill !