130 Sport gone all sluggish

[Dibs_h]

I've had my 53 plate 130 Sport since last Oct and can't really fault it, pulls like a train compared to the 80 Tdi it replaced. Until yesterday.

It's on AVS - and as the Service! msg had been on for about 2 weeks - I did the service yesterday. All genuine parts\oil from Audi - service indicator hasn't been reset, hopefully do that today.

Took it out and nearly came a cropper turning right at a few junctions. Whereas before it pulled from around 1k, now almost like a non-turbo car.

At first I wondered whether I'd tightened up the jubilee clip on the on the intake hose (after the MAF) - so took out the filter, air box, and re-did it - even took off the MAF connector, cleaned the connections. Took the car for a spin again - better, pulling better from 2.5k , but nothing like before. Even on the run into work today - no real improvement.

Whereas getting wheelspin turning right was no problem - now not a chance even if it's wet. I don't wheelspin, just gives an idea of how sluggish it's gone.

Didn't think doing a service would cause such a problem.:confused:

Any ideas\suggestions? Will be plugging it in this evening. Are MAF's almost consumables on these cars?

[benjie]

Are MAF's almost consumables on these cars?

I like that!

Yes is the answer, went through 3 in 5 years on my old MkIV, I'd change it. Also, check the hose at the back of the engine bay that runs along in front of the battery - it's made of hard plastic and is quite flat - make sure it's connected tightly.

[Dibs_h]

Cheers Benjie - update: Took the car round to my tame VAG\VCDS guru and had the car plugged in. There were 2 fault codes - one relating to negative boost pressure (or thereabouts).

The chap scratched his head for a moment and asked whether I'd taken the airbox out. Pulled off the concertina rectangular hose\thingy and shoved his hand near the turbo and 60 secs later announces it's fixed and that I take it for a spin.

Turning the 1st corner, it was back to normal. Parked back up and asked him what was the problem. He laughed and told me that I'd knocked off one of the vacuum pipes on the N75 valve whilst taking off\putting on the airbox.

He reset the the AVS whilst I was there - so thankfully no cost fix. I'll have to be a little more careful next time.

[benjie]

Ah ha! Good news all round!

(I'll keep that in mind as I'm rather clumsy!)