Turbo Loss - GRRRR!!!

I

IrishJohn

Member
Hi All

It's that time of year once again, I've done my yearly trip to Ireland and the car's been playing up again.

It's the usual, everything is fine, we get to 70-80 on the motorway & the turbo dies. I've tried coasting, turning the engine off & restarting the engine which cures the problem but only for it to return once I put any sort of load on the engine.

I've had the bonnet off and I can't see any loose, cracked or perished piping. It's all bone dry in there.

One thing I did try on the way back was to keep the revs below 2800(around 70mph) in 5th which keeps the turbo alive for long periods of time with enough umpf to get past lorries & caravans but if I lose concentration and stray above 2800 I lose it.

Are there any Audi or A2 specialists in the Manchester area that anyone could recommend before I do the unthinkable and take it to a dealer (gulp!)

Any advice would be very much appreciated.


Thanks

John
 
This is also happening to me, in my case it is positive charge pressure sending the car into "limp mode" under similar circumstances to what you are describing.

I also had the problem about 6 months ago and it turned out to be a split along the bottom seal of the inter-cooler, is your inter-cooler oily?
 
hhmmm...could be a trip to skipton autos i'm sure he will be on here soon. cheers mike
does sound like an over boost problem to me so could be waste gate or sensor just my 2p
 
I think were entering boost problem season... Very likely to be a split or perished rubber hose in the intake system. There are many. Get yourself to Skiptons he can help. I suspect we will see more and more of these on our A2s in the coming months as the rubber wears out. Has anyone contacted a silicone hose manufacturer like Samco to investigate a full replacement set of reinforced silicone hoses for boost and perhaps coolant pipes too?
 
Hooooooray!!!!

Problem solved.

It was 'the green pipe' running down behind the engine that had popped out of the rubber braided hose. I secured it in position with a cable tie. I then took it for a one hour test drive covering 4 motorways with lots of high speed cruising and it didn't miss a beat.

I can't believe that's all it was!

Anyway, a big thank you to Mike at Skipton's for his time and advice.

Happy days! :D
 
Glad it's all hunky dorey now - you're welcome back anytime John, as is the little man too!!

All's well that ends etc

I think the rubber tubing that the pipe fits into is getting to that age now where it's expanding and letting go of the thin pipe inside.

Cheers,

Mike
 
Turbo Loss

Hi I have the exact same problem as Irish John and I'm having trouble finding someone to investigate, they just want to rip out the turbo...which as you can imagine is loads of money. My question is can anyone recommend someone near Croydon that can look at this problem for me.
 
sorry to sound a bit thick but im not sure.....how will i know ive checked the log book but it doesnt say anything about being 75 or 90.....just A2 TDI SE sorry...tell me where to look and i can tell you. thanks.
 
Does your car have rear disc brakes (TDi90) or drum brakes (TDi75)?

If you need some work done I would recommend you go and see Surrey Lodge based in Wraysbury just off the M25 near the M4. They're an independent VAG specialist and the owner Richard knows his onions (Audis).
 
thanks Dan, it has drum brakes on the rear....I will try that guy as I need this problem sorted as it is a right pain.. :)
 
Tell them Dan recommended you to them and ask them to look specifically for a boost leak...
 
Have just been reading Auto Express this wk, and a question in there is similar. A 2004 Skoda Octavia TDI was running out of puff, and getting worse.

The reply was that this is a common fault on VW group TDI engines. It may have gone into 'limp home' modecausing a lower power output.. A common cause is a faluty mass air flow meter - but recomends a check first before assuming this is the case.

Hope this may be of some help!
Phil
 
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