jonbrightonA4 Posted November 1, 2017 Share Posted November 1, 2017 so my car drives fine its a 2006 A4 2.0 Tdi 140soft top strong smell of diesel from fumes but no oil in the white smoke no loss of power no shudders or judders .Oil level is good ,no loss of coolant . ive cleaned EGR which was almost clogged to full with soot ,car has 130,000 ive tryed no smoke product, and also a k seal ultimate I have removed all the air filter box to make the space more accessible and had the car up on jacks to 50cm to access underneath and remove the bottom plastic scuff trays, no signs of leaks anywhere .Any ideas as to my next move ? Quote Link to comment Share on other sites More sharing options...
Envy Posted November 1, 2017 Share Posted November 1, 2017 Injectors and compression test. . Unburnt fuel vapour out of the exhaust smacks of inefficient ignition stroke. Either overfueling, poor vapourisation or poor compression not giving enough heat to get the desired bang? Quote Link to comment Share on other sites More sharing options...
niedzial1983 Posted November 1, 2017 Share Posted November 1, 2017 How long you had the car ? Was it always smoke ? Does it smokes when cold? hot? engine Does it smoke on start up only or all the time ? With colder weather and condensation you may notice more smoke then usual Best to do a vcsd injector test first to see if values are in the range , if not they need to come out and be tested on a special jig for injestors. Quote Link to comment Share on other sites More sharing options...
jonbrightonA4 Posted November 1, 2017 Author Share Posted November 1, 2017 its smokes only when warm nothing on start up so only when warm never smoked before bought the car a month ago and yes colder weather but this is smog thick continuous once warm eases of a bit when at lights the smoke is heavy and to say the least embarrassing ;) car starts on the button and doesnt miss a beat pulls strong turbo kicks in no change in performance at all Quote Link to comment Share on other sites More sharing options...
Magnet Posted November 1, 2017 Share Posted November 1, 2017 Hello Jon, I would be investing my investigation money on a leak- back test on the injectors - at a local recommended diesel specialist rather than an Audi indi/main dealer . Let us know what happens if you do. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
jonbrightonA4 Posted November 2, 2017 Author Share Posted November 2, 2017 thanks for Reply Magnet I have a diesel specialist so will be onto them next week fortunatly i work in the car trade so have connections and can keep costs down many thanks wil be putting car in to diesel specialist next week and update as and when i receive news Jon 1 Quote Link to comment Share on other sites More sharing options...
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