2018 vw t6 204bhp black smoke from exhaust.

[andyr1986]

Hi. My 2018 vw transporter dsg 204 bhp has started blowing black smoke from the exhaust and the exhaust is full of black soot. There's no fault codes, the van pulls and drives as it should. The smoke goes away on high revs. Does anyone have any idea what can cause this ? The van is on 150k miles but has an extensive service history. I'm not sure if this is normal or related but I've also noticed liquid leaking from the part in the attatched photo. Thanks in advance.

 

[Snoopi-y-Fan]

I can't help with the smoke, but the item you've circled is the air conditioning condensate drain pipe - drips are completely normal.

 

[andyr1986]

I can't help with the smoke, but the item you've circled is the air conditioning condensate drain pipe - drips are completely normal.

Thank you

 

[manfrotto]

Has it been modified in any way - eg DPF and EGR removed etc?

 

[DXX]

Black smoke is unburnt fuel, more importantly the DPF would seem to be defective as so longer filtering soot.
Incomplete combustion, leaking induction boost pressure, leaking injector/s?
Mapped, modified, ??? Best be up front now.
VCDS scan would be the best chance of a diagnosis.

 

[andyr1986]

Has it been modified in any way - eg DPF and EGR removed etc?

I've no idea. Would these affect an mot ? As it passed not so ling ago.

 

[andyr1986]

Black smoke is unburnt fuel, more importantly the DPF would seem to be defective as so longer filtering soot.
Incomplete combustion, leaking induction boost pressure, leaking injector/s?
Mapped, modified, ??? Best be up front now.
VCDS scan would be the best chance of a diagnosis.

Thank you. I'm not sure about a map or any modification. I purchased it not to long ago. I will take it to a garage in the morning to see if they can check everything you mentioned.

 

[DXX]

I purchased it not to long ago.

If it was bought with warranty log a complaint now by email.

 

[andyr1986]

If it was bought with warranty log a complaint now by email.

It was a private sale sadly

 

[Sasquatch]

Sadly I think you may have discovered why the previous owner had it up for sale.

 

[andyr1986]

Sadly I think you may have discovered why the previous owner had it up for sale.

I've messaged him to ask. He said at the time that he had too many vehicles and needed to sell some to clear his mortgage. I'm beginning to doubt him now though.