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Hi all,

Those that have seen my previous posts may know that I have a Mk5 Golf GT 2.0TDI that had an overboosting turbo. The turbo also was excessively loud at low speeds.

Over the christmas period, i was travelling a fair bit and one one ocassion tried to overtake a slow car only for my car to enter limp mode at about 75mph.

Needless to say I was a bit annoyed but figured I would finally take the car in and get the turbo sorted incase it blew completely (£750 for a new one, quoted £1000 by the stealers!)

I took it to Andy at Autotechnica (Audi/VW specialists) on Calvert Lane in Hull for a turbo refurb. He took the turbo off sent it away to a turbo specialist who found that the intake impeller had some minor damage from debris from the air intake and also the variable veins were sticking due to excessive carbon. The turbo company stripped the unit, replaced the turbine, decoked it and rebuilt it for £300. Andy refitted it and while he had the car fixed my heated seats (apparently an error in the long coding for the seats), steam cleaned the block and fitted the new mirror (bought in dec 10 from fleabay for £45) assembly with puddle light to match the passenger side. He also gave the car a check over and checked all the fluid levels. With VAT it cost me a couple of quid over £500!

I think this is a good deal and the service provided was fantastic. I firmly believe in credit where credit is due and with so many people having had bad experiences with garages,I thought I would let you all know that Auotechnica were very good and i wouldnt hesitate to use them again in the future.
 

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Hi all, Those that have seen my previous posts may know that I have a Mk5 Golf GT 2.0TDI that had an overboosting turbo. The turbo also was excessively loud at low speeds. Over the christmas period, i was travelling a fair bit and one one ocassion tried to overtake a slow car only for my car to enter limp mode at about 75mph.

Needless to say I was a bit annoyed but figured I would finally take the car in and get the turbo sorted incase it blew completely (£750 for a new one, quoted £1000 by the stealers!) I took it to Andy at Autotechnica (Audi/VW specialists) on Calvert Lane in Hull for a turbo refurb. He took the turbo off sent it away to a turbo specialist who found that the intake impeller had some minor damage from debris from the air intake and also the variable veins were sticking due to excessive carbon. The turbo company stripped the unit, replaced the turbine, decoked it and rebuilt it for £300. Andy refitted it and while he had the car fixed my heated seats (apparently an error in the long coding for the seats), steam cleaned the block and fitted the new mirror (bought in dec 10 from fleabay for £45) assembly with puddle light to match the passenger side. He also gave the car a check over and checked all the fluid levels. With VAT it cost me a couple of quid over £500!

I think this is a good deal and the service provided was fantastic. I firmly believe in credit where credit is due and with so many people having had bad experiences with garages,I thought I would let you all know that Auotechnica were very good and i wouldnt hesitate to use them again in the future.
hi, i had the same problem with my golf mk5, all you have to do is take off the vac pipes off the vac unit which is on the top behind the engine (its the two pipes that go down the back of the engine) and suck on them a few times (if your doing it right you can hear movement from the turbo) then get some brake cleaner from the car shop and then spray the cleaner into the air intake after the air filter (make sure its very fine mist spray) rev the engine hard and repeat this about five times, if its automatic it will also help correct the gear change as it is controlled by an actuator on the same vac pipe! simple as that.
 

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hi there, is it quite simple to do what youve described above??? does it take long as a complete job? this has been happening to me, the car goes into limp mode on long journeys when boosting up. thought it was the turbo coking up but havent gotten round to loking at it as cant find decent details on how to clean it...
 

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hi, yeah it was very easy, but use the cleaner as a last resort, suck on the vac pipe that goes the turbo a few times! if your not sure put it up on a ramp and where the vac pipe goes in on the turbo manually move the rod and spray wd40 around it, then rev up the engine to blow out any loose carbon, its also a good idea to go on a motorway (when not busy) and floor it!! if that fails then use the cleaner!! thanks
 

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Hi thanks nice to know you got it fixed. I removed my turbo today but cannot strip it down as bolts on the hot side are not square. I have ordered a refurbed unit for £312 quid. I will get it fitted on Thursday so will let you know the outcome.
 

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6year old thread dude!
I had been about to post the same comment but you beat me to it

It is a shame that Stratos did not post earlier and we could have explained the various possibilites although to be fair it does seem he was aware of sticky vanes and the home de-coke option

"sticky Vanes" ie clogging of the boost control mechanism inside the turbo remains a considerable and quite common problem on cars that use similar turbos to this day and there are sadly some garages that take advantage and sell customers a brandnew turbo when a considerably less epensive re-conditioned units readily available and of course DIY options including the often maligned "Mr Muscle" treatment (which is quite easy and cheap and can be quite effective if applied early enough) or a home strip and decoke.

Fingers crossed the replacement turns out ok and will solve his problems
 

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I recently had overboost problems with my 2008 jetta dsg 140bhp bkd.

Would overboost in usual places, ie 5th gear form.70 to 90 ,

Or going up hill and using lots of boost , is high load situations

Took it to a local garage and they used revive turbo cleaner spray, and touch wood it seems to be ok so far

I guess if u deal with it sooner, it might better than dealing with it later ?

Cars done 89000 miles for what it's worth
 
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