AudiBob
24-05-2009, 07:28 PM
I have a 2008 B8 A4 2.0TDI SE. Its a leased company car and the lease hire company do all the maintenance including tyres and tyre choice.
After 19,000 miles the stock Dunlop SP01 tyres were ready for a change on the front. Kwik-Fit put Pirelli P6000's on as per the lease hire company. When I drove away I knew something was wrong, a high frequency vibration was present on the steering wheel which did not go away and increased with speed.
It would start at 50mph, be noticeable at 70, dammed annoying at 80+.
The next day I complained to Kwik-fit and they balanced the wheels, but this made no difference.
The wheels were balanced on 5 different occasions by three independent garages.
I returned the car to the Audi dealer who were useless and could not find the issue - but it was there and dammed annoying as most of my mileage is motorway at about 80mph.
After a couple of visits to the Audi dealer they dismissed the issue totally. Then I had a brain wave, I swapped the Pirellis from the front to the rear and the Stock Dunlop Sp01's from the rear to the front. I had a car reseller to this and balanced the wheels (sixth time).
Presto, my smooth refined beautiful ride returned immediately.
After 1000 miles I still get a minor rumble from the rear but the steering wheel is vibration free.
Now, What makes the Pirelli P6000 so different and the Dunlop Sp01 so smooth? - talking in a pub to a tyre fitter I got chatting to things the load od the Pirellis is less than the Dunlops however checking the tyre wall they both state 670kg but the Pirelli's mention 'standard load' and the tyre fitter claimed that the A4's need extra load tyres however the Dunlop tyres do not suggest as such.
I need some evidence to present to the lease hire company as to why not fit Pirelli's again and put the Dunlop on all round. Can anyone help?
If not be warned NEVER consider Pirelli P6000's for your A4.
After 19,000 miles the stock Dunlop SP01 tyres were ready for a change on the front. Kwik-Fit put Pirelli P6000's on as per the lease hire company. When I drove away I knew something was wrong, a high frequency vibration was present on the steering wheel which did not go away and increased with speed.
It would start at 50mph, be noticeable at 70, dammed annoying at 80+.
The next day I complained to Kwik-fit and they balanced the wheels, but this made no difference.
The wheels were balanced on 5 different occasions by three independent garages.
I returned the car to the Audi dealer who were useless and could not find the issue - but it was there and dammed annoying as most of my mileage is motorway at about 80mph.
After a couple of visits to the Audi dealer they dismissed the issue totally. Then I had a brain wave, I swapped the Pirellis from the front to the rear and the Stock Dunlop Sp01's from the rear to the front. I had a car reseller to this and balanced the wheels (sixth time).
Presto, my smooth refined beautiful ride returned immediately.
After 1000 miles I still get a minor rumble from the rear but the steering wheel is vibration free.
Now, What makes the Pirelli P6000 so different and the Dunlop Sp01 so smooth? - talking in a pub to a tyre fitter I got chatting to things the load od the Pirellis is less than the Dunlops however checking the tyre wall they both state 670kg but the Pirelli's mention 'standard load' and the tyre fitter claimed that the A4's need extra load tyres however the Dunlop tyres do not suggest as such.
I need some evidence to present to the lease hire company as to why not fit Pirelli's again and put the Dunlop on all round. Can anyone help?
If not be warned NEVER consider Pirelli P6000's for your A4.