Reefer madness Posted April 30, 2020 Share Posted April 30, 2020 Hi I'm new to the forum so if this topic has been extensively covered I'm sorry. I've just bought a 2007 VW Passat TDI sport estate. When you start it up from cold it's a bit lumpy at idle, but the when it's been left to warm up it's smells quiet bad, like a really old burnt out engine. It'll tickover nicely when warm but there seems to be a lot of black / grey smoke coming out the exhaust. Are these signs of a blocked up EGR valve or something else. Please help, I've only just bought the car and I just hope it's not a lemon cheers Gary 😂 Quote Link to comment Share on other sites More sharing options...
Volkswagen Owners Club Posted May 1, 2020 Share Posted May 1, 2020 Hi....welcome to the Forum First thoughts are if its lumpy on idle then I would check the glowplugs are all operating okay. After that I would look at any turbo boost hoses for leaks (usually hear them) and if so replace them After that I would check and replace the engine oil if the condition is less than par and also the air filter. Quote Link to comment Share on other sites More sharing options...
Reefer madness Posted May 1, 2020 Author Share Posted May 1, 2020 Hi many thanks for the quick response and advice, as the weekend is nearly upon us I'll get to these 3 points first thing. Really appreciate it very much kind regards Gary 😊 Quote Link to comment Share on other sites More sharing options...
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