Diggy98 Posted September 3, 2017 Share Posted September 3, 2017 Hi, I just got a 2007 A4 quattro, 2.0 TDI 170hp engine. I have noticed an oil leak behind the engine, it seems like there is a wiring connector there leaving the head and going down the engine. Can someone tell me what I should replace/check? Thank you very much! Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 5, 2017 Share Posted September 5, 2017 It could be a sensor, but I'm not sure what for. It's not uncommon for fluids to leak through where the sensors are as the seals fail over time. How much oil is coming out? Is it dripping or gushing out? Sorry, I'm not as technically mind as some of our other members :/ cheers steve Quote Link to comment Share on other sites More sharing options...
Diggy98 Posted September 5, 2017 Author Share Posted September 5, 2017 My father put too much oil when he did the oil change so I think it was leaking because of too much pressure. The oil level is ok now and it hasn't leaked so far. Thank you for your answer! Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 5, 2017 Share Posted September 5, 2017 Your welcome:) and glad it's sorted :) when you over fill the system It will always find the weakest point to escape from. On top of that I also believe that some of the systems are designed to release the fluid if too much pressure has built it so as not to cause damage to the engine ;) cheers steve Quote Link to comment Share on other sites More sharing options...
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