CXEC 199ps Biturbo failure

[kam760]

Just got the news oil is bypassing the turbo.

100k miles CXEC 199ps 2019.

Symptoms were a clogged DPF and subsequent engine light/limp mode (EGR already mapped out).

Any recommendations for a specialist garage in the NW for job?

Expecting a 3-4k bill for the work. Guess I'm a real T6 owner now!!

 

[DXX]

I think the clogged DPF may have come first, a recognised cause of turbocharger failure.

 

[Dellmassive]

How much oil was your losing?

What was your top ups like between services?

Small or big turbo?

Turbo alone is £3.5k.

Then you need the DPF,CAT, oxygen sensor replaced.

Keep us updated. This is the first cxec turbo failure I've seen on here?

 

[Dellmassive]

I think the clogged DPF may have come first, a recognised cause of turbocharger failure.

Possibly the blocked dpf caused back pressure that caused the turbo bearing to fail!...
. But why did the dpf clog if not from oil from the turbo?

Was it city driving? Loads of short trips?

 

[kam760]

Last 6k miles have 90% city driving and short trips.
Before that mainly A roads and motorway.
I assumed that could be the cause of dpf blockage but garage weren't convinced due to the short timeline. Said best thing to do is take the dpf and actually look for any other root cause before putting it down to that.

Couldn't force a regen or clean it with chemicals. Had to physically open it and found a load of oily crud.

Other theory I've read online is that blanking egr could lead to DPF clogging faster - think darkside always recommend doing both together. Not sure if this is true though?

Not a single oil top up required in the last 8-10k miles. Hence why it was so unexpected.

@Dellmassive What's DPD stand for? Will ask if it was small or big.

 

[Dellmassive]

Last 6k miles have 90% city driving and short trips.
Before that mainly A roads and motorway.
I assumed that could be the cause of dpf blockage but garage weren't convinced due to the short timeline. Said best thing to do is take the dpf and actually look for any other root cause before putting it down to that.

Couldn't force a regen or clean it with chemicals. Had to physically open it and found a load of oily crud/paste.

Other theory I've read online is that blanking egr could lead to DPF clogging faster - think darkside always recommend doing both together. Not sure if this is true though?

Not a single oil top up required in the last 8-10k miles. Hence why it was so unexpected.

@Dellmassive What's DPD stand for? Will ask if it was small or big.

Sorry, typo. Ment DPF.

I've corrected it now.

 

[Kind of Blue]

Have you owned the vehicle from new? just wondering why the EGR was deleted. Very sorry that you are having this trouble! The 199bhp is otherwise clear of these problems. Their must be many high mileage example about by now.

 

[DXX]

Last 6k miles have 90% city driving and short trips.

I reckon that could well be the cause, there’s a lot of regen’s in 6k miles under motorway engines loads let alone slow low load urban driving.

 

[kam760]

Have you owned the vehicle from new? just wondering why the EGR was deleted. Very sorry that you are having this trouble! The 199bhp is otherwise clear of these problems. Their must be many high mileage example about by now.

No I'm the 2nd owner.
Previous only blanked the EGR.

Garage suspect either
1) maybe EGR was deleted due to being blocked - but they never investigated root cause.
2) possibly a dodgy remap done at same time using turbo to prematurely fail?

 

[kam760]

Last 6k miles have 90% city driving and short trips.

I reckon that could well be the cause, there’s a lot of regen’s in 6k miles under motorway engines loads let alone slow low load urban driving.

Honestly can't deny it.

Very very city driving. Suddenly got a change in job which meant work is less than 5 miles away but around 45 mins of stop start traffic.
Always wanted a tsi but as we know they are very elusive.

Definitely want to fix this properly. My only concern is I don't want to drop 4k for it to clog in 6 months again with my stupid commute. Unless I go down the illegal route of dpf removal etc.

Might be easier to keep an eye out for tsi for the next few months if one ever comes up in the right spec.

 

[WinFreak]

Fix the van, buy a bike

 

[Kind of Blue]

No I'm the 2nd owner.
Previous only blanked the EGR.

Garage suspect either
1) maybe EGR was deleted due to being blocked - but they never investigated root cause.
2) possibly a dodgy remap done at same time using turbo to prematurely fail?

What a pain many times over, certainly you are in the right place. Quite a few very talented people on here especially "Dellmasive" and "mmi" and one or two others that are way over my head.

 

[Wills]

An option? For Sale - 2019 twin turbo set for CXEC engine

 

[DXX]

Honestly can't deny it.

Very very city driving. Suddenly got a change in job which meant work is less than 5 miles away but around 45 mins of stop start traffic.
Always wanted a tsi but as we know they are very elusive.

Definitely want to fix this properly. My only concern is I don't want to drop 4k for it to clog in 6 months again with my stupid commute. Unless I go down the illegal route of dpf removal etc.

Might be easier to keep an eye out for tsi for the next few months if one ever comes up in the right spec.

£200 run about A4 is my solution, more reliable than a T6 by far.

 

[kam760]

£200 run about A4 is my solution, more reliable than a T6 by far.

Guess I gotta tax and insure the GTI now for the daily. Just expensive to run and maintain both. Probably not as expensive as a turbo though

 

[Uncle Barry]

my turbos have just been replaced.2020 t6.1 lwb 4motion cxec 199ps that went in for a resonator delete. So the guy removed the DPF his choice i didnt know until black soot erupted from the van and to hide the dpf fault he put a stage2 tune on the van
Without testing it at all.
So then it stopped 48hrs later.
he replaced the turbos which is 10weeks i dont get back'. still no dpf has a basic tune on but nothing that works well.
The van is full of mods from injectors upgraded and fuel pump 3in stainless cat back and performance filter and some pipe work. plus 7speed DSG remap.

 

[DXX]

my turbos have just been replaced.2020 t6.1 lwb 4motion cxec 199ps that went in for a resonator delete. So the guy removed the DPF his choice i didnt know until black soot erupted from the van and to hide the dpf fault he put a stage2 tune on the van
Without testing it at all.
So then it stopped 48hrs later.
he replaced the turbos which is 10weeks i dont get back'. still no dpf has a basic tune on but nothing that works well.
The van is full of mods from injectors upgraded and fuel pump 3in stainless cat back and performance filter and some pipe work. plus 7speed DSG remap.

Not entirely sure I follow what caused what but sounds like you have a situation that not many workshops will be willing to touch.
Perhaps list it in chronological order and the reasons why with the mileage.

 

[Uncle Barry]

no one wants to touch it. This was my dream car, and some muppet murdered it.
The had 135K on it.
I purchased 6th feb 2025 it with 127k as ex VIC police car used for forensics'
Has a perfect service history
In April I had a REVO stage 1 applied
With a major service REVO performance air filter. All work done by a highly respected euro workshop.
The revo tune was great.
End of May I wanted it to be more so I'mI approached a local workshop
I wanted it to be a Stage2 van after all the parts were available in Australia.
So I requested this guy start with a resonator delete purely to make it sound better.
I had odered a Miltec system along with a wagnar intercooler,oil cooler and radiator setup.
(btw I'm new to this VW world and was very ignorant about this delete and tuning world)

He immediately started pushing the DPF delete which I agreed to really shut him up and trusting his professional advice.
I had just ordered a DPF back miltec system with a Wagnar radiator. oil cooler and intercooler amd made it abundantly clear that no performance work was to happen until the parts were here.

Van goes in 2nd July for the resonator delete at 7;30am it wasn't ready until 7;30p,. (red flags started)
When I arrived the muppet was avoidant in letting me to see the van,
And that is when he informed me that he a applied a stage 2 remap but due to it being lwb it was too big f or his Dyno and he outsourced the tune.
So, I asked about why he had applied stage 2 when all it was meant to be a resonator delete.
Where he informed me how lucky I was to have the stage 2 done.

48hrs later the van stopped with death notice dash lights in peak hour traffic.

I had the van towed straight to his workshop. Where it stayed for 10weeks with no real answers but lied and avoided answering me.
The muppet about halfway through that a job said he was going to sought out the turbo and labour to install it. hooray I thought.
So, during the time he had it I was asking for the data sets and files, but he could not provide anything. I had also found out it was illegal to remove the dPF so i requested the DPF be put back in the van at it be restored to the condition he originally received it in. He had received it in he agreed also telling me that he had removed the straight pipe and DPF. then tried to invoice me $9000 in parts.
I wasn't happy with the van from the moment i collected it. Warning (dash) lights and smoke low power etc. Just shit. They also completely removed the engine to replace the turbo system which isn't the right way and can lead to problems according tp VW Aust.
We are now in court. where he has agreed to put the DPF back in it again while complaining that it's a huge job taking a couple days. Needless to say, that he is trying to get away with a 2nd hand part which I nor him can locate in Oz.
All this time the van remains off the road as it is my work car for my business. I've now lost all work and cancelled my 1st ever trip overseas to Turkey and 2 road trips with my daughter.
Workshops will not help and 2 have suggested the turbos are possibly a cheap clone from China. Deepening the issues.
I spent a fortune on this dream and now its worthless.
I can upload attach screenshots of the codes and pictures of the repairs.

I hope that made sense for you.

Cheers

 

[DXX]

Hopefully the court case works out.

 

[Uncle Barry]

Hopefully the court case works out.

It almost did on Friday but he is broke now! And cant pay. So now i will take it to the next level of the courts involving epa and fair trade dept.. which will take forever.