MK V TDI (BKD) - Turbo Whine

[robe0455]

Hi all,

First post and not a good one to be honest.

We own a 2007 Mk V Golf TDI Comfortline with the BKD 2 litre engine with the 6 speed manual.

Last week we noticed the engine was making a definite 'whine' and yesterday the car went into limp mode for the first time (no dash lights though). After restarting it went out of limp mode but the noise is certainly there and seems to be coming from the rear of the engine where the turbo lives. I have had a search and the noise is the same as others which ended up being the turbo.

I am going to call a couple of workshops tomorrow (generally use AVW, will also call Solitaire). Is it a manageable task for diy or best left to the pro's? I am somewhat handy with the tools and generally do all my own work.

I am wondering what I need to be prepared for? Is there anything that needs to be done or should be done when the turbo is changed? What do I need to do to ensure this won't happen again?

So far the vehicle has been pretty good to us. We bought it at 109,000km and it now has 172,000. At around 155k the coolant flange seal chewed out and I replaced it. Other than that its been smooth sailing until now.

Just wondering what else I should be prepared for (as in common problems with these vehicles)?

Thanks in advance

[asa572]

Turbo is more than likely on it's way out.
Mine had a whine in it for about 6 months, it gradually got worse (I didn't notice it because I was always driving it and I like loud music).
Then one morning the turbo was feeked.
This happened at 190,000+ klm's.

[robe0455]

Turbo is more than likely on it's way out.
Mine had a whine in it for about 6 months, it gradually got worse (I didn't notice it because I was always driving it and I like loud music).
Then one morning the turbo was feeked.
This happened at 190,000+ klm's.

What did it end up costing and what needed to be done? Reading on forums it seems as though some just change the turbo out but others get a bit more involved. Did you get a brand new turbo or used?

[Ryeman]

If you're going to keep it long term, I'd be doing the DPF(?) and EGR at the same thing as there is so much labour involved and they must be close to their clean and clear lifespan, unless the turbo work only involves work from above.
The modern diesel has morphed into something completely different to the old reliable concept unfortunately.

[Sunkist]

no need to do dpf. have seen 400000km cars on original dpfs that are fine. check egr spindle for snapping and seizure, if its ok dont bother. replace turbo and the nuts fo the manifold, and do an oil and filter and air filter before starting it up.

[asa572]

I bought a low k engine with a turbo and just did an engine swap.
I fitted the engine myself.
I'd rather note say what I payed for the engine an turbo but it was cheaper then a new turbo.

[robe0455]

Ended up taking directly to Adelaide Turbo Services who had a look and are certain that the turbo has been starved of oil. Apparently a combination of service intervals being too long (they recommended 7,500km for this vehicle) and not letting the turbo cool down after driving as the reason. Basically, the oil feed line will have coked up and eventually blocked which is the reason for the issue happening so quickly.

According to these guys its best to fit a new Genuine VW turbo, which with gaskets, oil and filter and labour will come in at around $2500. Could have been worse I guess.

Moral of the story is to service these vehicles more frequently, with good quality oil, take the time to let it cool down and should be right. I have asked them to look for anything else they can see while they are in there and replace if needed.

Moving forward, I will be fitting a Provent 200 catch can and the the vehicle should be good for a while longer..

[dubster99]

I always tell my mrs to cool out 2006 tdi down after but never does! Ill show her this! Ours is at 166k now and have alot of coolant going missing. Whats involved with the coolant flange? This may be the cause. The throttle body has died too which I'm going to replace in the next month (new house nearly built and have to pack and move!) Then Ill get stuck right into it!