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View Full Version : 1.9tdi 130 PD feels sluggish post big service



pdlh
30-11-2023, 08:51 PM
So I've had my A4 for 19 years, it's 21 years old, and I've put 150k miles on this car out the of the 200k miles its completed. All this time I've taken it to the same company who originally only dealt with VW/Audi's and it's been an enjoyable drive.

Anyway, it needed a Timing belt, water pump, lifter and full service, which it had on Monday. In addition there was a broken tensioner on the Aux belt, which has now resolved the jerky steering and squeaking in cold weather. but post the work, I drove the car home on Tuesday expecting to have the smile back after a service, as the car usually feels like it has a bit more spark. And it was not right at all. No turbo kicking in until 2200 RPM when I assume the exhaust gas helps the turbo to spin up, and the brake pedal went hard twice on the drive home.:mad:

Been back to the garage today, and we have now replaced the mechanical vacuum pump. Assumption was just bad luck despite it being fine on Monday when the car went in. It's an old car. So new Vacuum pump, and brakes are working normally now, the turbo is better, but it just still does not feel right. Don't feel like I can go back to the garage for a third time, you know what it is like they make you feel like it's fine and you don't know what you are talking about. But this is the 4th timing belt they have done on this car in the last 19 years, and after owning and driving the car for so long, you just know what feels right when you accelerate and it feels a bit flat, more now between 1800-2200 RPM the flat area and especially in 3/4th gear.

Not sure what to do? Any ideas? No faults in VCDS either.

Paul

arman123
17-12-2023, 01:47 PM
Hi

Have you tried check the timing belt Timing it might be advanced or rertarded you can check via vcds

Crasher
17-12-2023, 04:20 PM
I thought for a moment it was us as we did one just like this last week but he is local and hasn’t been back. I think checking the torsion value as Arman suggests is a good idea.

pdlh
21-12-2023, 09:38 PM
Thanks Guy's, sorry for slow response, at the inlaws for a couple of days. I'll plug the car in at the weekend and report back. Assume I'm going into Engine settings, Measuring blocks and group 004 to get the value?

What would you expect it to be?

Paul

Crasher
22-12-2023, 11:37 AM
Sounds right, just click through until it is labelled.

pdlh
18-04-2024, 08:20 PM
Solved !!! :biglaugh:

So after nearly 5 months of driving a car which has been driving me mad, going uphill lorries have passed me, when pulling up a motorway sliproad it was hard to accelerate to motorway speeds....

Car had a MOT, it then had new brake pads front and back and then went for a wheel bearing,

But today I had a poke around the engine bay after reading up on the vacuum system and it's components, (finding a drawing of the AWX vacuum system is limited on the web)! But I found the check valve and it was missing a hose on the black side. Pushed it back on today, took the car for a run and it's flying again. Not impressed the original garage diagnosed faulty vacuum pump and not a hose they had intentionally or accidently removed. but It's working again!

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