my cupra 150 smells of diesel in the cabin after 5 mins of driving any ideas what this may be after 10 mins the smell is gone and dose not come back till i start from cold again ??
I had that but not every day just on occasion and always about 5 mins after starting. Took my car to garage recently and they did'nt see anything obvious but did say there was a small 2" breather hose slightly right of the EGR valve that did not have a clip fastening it to some other bit ???. They stuck a jubilee clip on it and i have'nt noticed the smell since, however it is a bit warmer at the mo so not so much diesel is being thrown in early on.....
Seem to remember the pipe had material on the outside if that helps identify it for you..
What kind of diesel smell? burnt id persume as stright fuel isnt that pungent. may be a gasket leak or even hole in the exhaust but i wouldnt worry too much if its on a cold morning as they'll run a fair bit richer.
fresh diesel smell unburnt still there had a look at egr today no sign of loose pipes or any residue had a good look in engine bay no sign of diesel leaks anywhere ??????
Tank breather id say then if there is nothing loose/wet under the bonnet. Have a look under the rear seats around the big round sender/pump flap thing. not sure if its un bolts or just lifts out giving acess to pump/sender unit bolts. Never been under there myself.
The 'burnt fuel' smell in mine disappeared after replacing the exhaust (inc downpipe) so im guessing it was the gasket between turbo and downpipe at fault. Smell came back recently but unburnt, turns out i'd got some fuel on my shoes while filling up and got it on the mat. Once the car had run for a while the blowers made the smell less obvious.
im from the uk mk4 forum and also have a tdi 150, I hate to say this but trust me its camshaft problems, 150's are known for this I bet you also get loads of white smoke in the morning and same unburnt diesal smell and lumpy start??
sorry thats a no to the replacement exhaust all origional and standerd ....
today i parked on some concrete after rain i moved the car 10 mins later and there was a rainbow mark where the rear of the car was so will investigate more at w end ...
thanks 4 all advice ..so as for the cam thing i hope its not that car runs perfect no smoke not lumpy but dose have polution light on but it has been on for 18 months came back on 3 months after i changed temp sensor ...
just an update found where diesel leaking from it was the gasket on the side of the pump only small thing think its the regulator cover have temporary fixed it till i can get new gasket next week also pluged in vag .com and found polution light was caused by no 4 glow plug
another quickie update of course tps vag do not sell the gasket its onty the size of 2 50p peaces and probably only cost a pound but tthey can sell me whole pump for £350.00 outragious im off to find another solution there is nothing wrong with the pump ... if anyone knows where i can get a gasket made please let me know ....
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