Turbo Problem

[swifty]

At the weekend I took a trip from London upto Nottingham. For the first time since owning my x plate 2000 galaxy 1.9tdi I decided to try out the cruise control, all worked well but after the use of the cruise I noticed that as I got upto 85mph there was a drop in power and when pushing down on the excelerater the turbo was not cutting in. It was only after stopping and turning off the engine and then restarting it that the turbo was working again and so I tried the same thing yet again no turbo and no power, stopped again and then restarted this time making sure the switch for the cruise control was switched off didnt get the problem back. Could this have due to the cruise control or could it be something I need to get checked out as it hasnt happened since. Sorry for long message hope someone outthere can give me an answer. Regards Swifty

[Smilge]

Swifty ....... sounds to me as though you are getting the overpressurisation problem and the system is going into limp mode. I don't think the cruise control is at fault but won't help as you tend to find an increase in speed demand will cause the system to try and get to that speed as fast as possible rather than a gradual acceleration increase; hence the economy will decrease when using the cruise control. In your situation I would try and get someone with VAG-COM to download fault codes to give you an indication of where the problem is. Hope this helps.

[swifty]

Hi Bleeno.... Thanks for advise. Im new to all this.what is vag-com.

[mumof4]

a diagnostic tool that plugs intot he car, like auto electricians do to read any faults from the onboard compooter

[Herts Hammer]

Just a quick thought - Do you have an auto box? If you do, are you sure you're not confusing the turbo coming in with the kick down function on the accelerator?

 

If you're doing 85 then the turbo would surely be running very well - I doubt you'd have the power to get to 85 without it.