My turbo falls a sleep !!!

[msport]

Yes thats right, well it feels like it dos.
I have a 725TDS thats runs very well, but if i drive arround 80-90 km/h for about 4-5 minuts (under 2000 rpm) the turbo dosn´t work when you want to accelrate and it works again if you put the gearbox in N, or break down to 20 - 30 km/h and a 725 TDS without turbo dos not accelerate at all.

So far no one has been able to give me any ideers at all, so i was hoping some of you might know or have surgestions.

Thank you in advance. :?

[A. Vogel]

Hi! What is, when you accelerate with kickdown? You can try to test your turbo, when you take a friend who plays with your gaspedal and you look and feel with two fingers on the hose from turbo to motor. When you can feel that the pressure is increasing, the turbo must be ok. And look if the turbo inside (you have to unscrew the hose bevor the turbo) leaks oil. Then the turbo is eventually killed. And look to all underpressure hoses.

A. Vogel