2011 a3 s line smoke query

Mark1984

Registered User
Hi there, I’ve got a 2011 a3 s line tdi and I noticed today that just before the turbo is about to kick in there’s a small touch of smoke coming from the exhaust for a second then stops. Doesn’t happen all the time but I noticed it a few times pulling out at junctions as soon as I was in 2nd gear or 3rd it would happen. Can anyone give me some advice on this please
 

Mark1984

Registered User
Hi there, I’ve got a 2011 a3 s line tdi and I noticed today that just before the turbo is about to kick in there’s a small touch of smoke coming from the exhaust for a second then stops. Doesn’t happen all the time but I noticed it a few times pulling out at junctions as soon as I was in 2nd gear or 3rd it would happen. Can anyone give me some advice on this please
It’s a more a black colour pal. My little brother is a mechanic and has had vag cars for years and he said it’s like a dpf filter just needs a clean but I’m 74 miles on the motorway every day so should be clean?
 

Scotty75

Registered User
If be inclined to agree with your mate . DPF's do clog up , even with regen cycles . The regen cycles help to reduce build up and your 74 miles will definitely trigger a good regen cycle.

However the DPF is still just a filter and over time any filter is going to need a deep clean or replacement . It's the Achilles heel of modern diesel engines if you ask me .

I've heard good things about Teraclean , that may be with trying . I think a full system clean is about £300. Cheaper than replacing a DPF.
 
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