Vibration at 68 mph

[Cp13]

Hi

Thanks for letting me join

I have a 4 door 2.0T A3 S-line petrol  model, 80,000 miles on clock

which has a noticeable vibration starting at 68 mph.

The car tracks straight and doesn’t seem to have other vices.

TIA 🙂

Edited September 3, 2024 by Cp13

[cliffcoggin]

Gordon.

The most likely cause is the wheels being unbalanced. Get this checked at a tyre shop before looking for other causes.

[Cp13]

Hello Cliff

Thanks 🙂

I had a thought this might be the case 

In closing, what mpg should I expect from the 2 litre engine

I think its 200 hp 

[cliffcoggin]

Gordon.

Just to add, even if the wheels were balanced when the tyres were fitted, pot holes and kerb climbing can dislodge the weights. If balancing does not solve the problem we need to investigate elsewhere.

Although I had a 2 litre diesel A3 2007 until three years ago I don't really remember what the fuel consumption was. I recall it was typical for its type and not unduly thirsty, but beyond that I do not know. In any case a car's consumption always depends on how it is driven and on what roads.

[audia4b5kev]

1 hour ago, Cp13 said:

Hi

Thanks for letting me join

I have a 4 door 2.0T A3 S-line petrol  model, 80,000 miles on clock

which has a noticeable vibration starting at 68 mph.

The car tracks straight and doesn’t seem to have other vices.

TIA 🙂

do 65  then  lol   check wheels check discs and check brakes arnt sticking on