My 2006 Octavia 1.9TDI is 7 years old but has only done 34K.

 

The Engine Management light has been on & off the past few months: my local garage diagnosed 17964 P1556 Charge Pressure Control: Negative Deviation. Took it to my Skoda dealer today who tells me I need a new turbo. Cost £1000 + £500 fitting. I'm gutted!

 

Strange thing is, the car actually goes pretty well. It accelerates reasonably (but not scintillating fast), gets up to 80mph (but no more) It does slowly loose speed going up a long incline to the point where max speed is about 40mph but then, once over the hill gets back up to normal speed again.

 

No undue noises or black smoke.

 

I take it Skoda's diagnosis is correct but I can't afford 1500 quid.

 

Second-hand Turbo? If so, from whom and what kind of guarantee can I expect?  

 

Another question: Would a car still be reasonable to drive even with a non-functioning turbo?

 

Many thanks

Further info for you:

 

I've just come back from speaking to the Skoda mechanic . He says it's the waste-gate that's faulty and as that part cannot be repaired, the whole turbo unit needs replacing.

 

Your comments and advice would be most welcome.

 

mbp.

If it a main dealer its a case of they won't repair it as Skoda won't let them. Also I thought the turbos were vnt rather than wastegate.

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Further info for you:

 

I've just come back from speaking to the Skoda mechanic . He says it's the waste-gate that's faulty and as that part cannot be repaired, the whole turbo unit needs replacing.

 

Your comments and advice would be most welcome.

 

mbp.

as above   but what is faulty??   is it sticking or has the actuator failed ?    assuming it IS the turbo and not the vac pipe or the control system or the vac system it's self    I would get a second opinion for pref' an independent  vag specialist  even a re-con and fitting should be approx. 1/2? that price  don't tell them you've been to SKODA etc let them start form cold

I would try my muscle turbo treatment before you go for a new turbo

90, 110, 130?

 

The 110 is most definitely not a wastegate, but VNT.  Some 90s are VNT (generally the latter ones) and others are wastegate (generally earlier). 

 

If VNT, then the chances are the vanes are stuck.  If you have semi handy you can remove the exhaust manifold, take the turbo off and clean it.  The quick (but less long term, imho) solution is the Mr Muscle trick.

 

Initially you need to to see if the actuator arm moves on the turbo when a vacuum is applied, etc.

Is it a mkI or mkII Octavia?

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7 Years and 34k so its done alot of short journeys and cold starts and pootled round town,

 

Take it up road and knock hell out of it see if turbo comes back to life,

 

The problem with variable vane turbo's is they need to be used, but most arn't and this is the problem they just clog up with crap and vanes seize up from lack of use, tend to be seeing more of these now as people tend to drive diesels steady for better fuel economy

Thanks guys for your replies so far.

 

It's a mk1 105BHP Octavia but first registered in 2006. I bought it at 4 years old when it had done only 7000 miles (guaranteed by Skoda). It had been owned by an old couple who used it to go to and from hospital mainly. I doubt if it ever reached turbo speeds.

 

The Skoda dealer mechanic said the turbo vanes were probably ok, the problem lay with the waste-gate. I think he mentioned a diaphragm malfunction (?). Not at all sure what he was talking about to be honest.

 

Is he right about the Turbo/Waste-Gate being one unit and the whole thing needs replacing?

 

Further guidance, please

 

mbp

 

PS: Can't comment on 'VNT' as I haven't a clue what it means.

Unless it is a taxi spec late mkI then a 105bhp diesel should be a mkII. Are the indicator repeaters in the wing mirrors or on the wings?

AFAIK all of the mkII diesels and all the mkI after about 2000 have vnt turbos and not wastegate turbos. With vnt there are vanes on the exhaust side which move so the turbo can develop more boost at lower engine speeds, there isn't a wastegate. Driving cars with vnt turbos can lead to the moveable vanes getting stuck as carbon builds up in the exhaust side of the turbo.

I would find a good day independent to have a look at the car.

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Sorry I meant driving gently can him up the vanes. You need to give some beans on a regular basis.

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