[Jimbob1302]

Hi all,

A puzzler.

My 2010 525d F10 has bad vibrations only between 70 - 80mph on the motorway.

Anything below 70mph and it’s smooth and anything above 80mph and it’s smooth.

Vibrations are in the footwell and seat, not the steering wheel.

The vibrations started some time ago. All wheels / tyres balanced up, must be over 20 times all in all.

I even went as far as replacing all 4 tyres. Plus 4 wheel alignment.
Still the same.

When on the balancing machines the wheels are all fully balanced before putting back on my car.

BMW dealer have said it will need to be trial and error now to try find the issue by replacing certain things.

I put a post up a couple of weeks ago as was thinking of changing wheels to see if it’s the wheels or not, but that will cost be in excess of 1.5k so would rather avoid.

Any suggestions?

Thanks very much,

[wcr3d]

Just things to start inspecting, suspension and drive train.

[johnhva]

You don't list the mileage but on a 9-year-old car if it's an x-drive there may be a problem in the transfer case or front/rear differential(s).

[Dhruv25]

[QUOTE=Jimbob1302;24844064]Hi all,

A puzzler.

My 2010 525d F10 has bad vibrations only between 70 - 80mph on the motorway.

Anything below 70mph and it’s smooth and anything above 80mph and it’s smooth.

Vibrations are in the footwell and seat, not the steering wheel.

The vibrations started some time ago. All wheels / tyres balanced up, must be over 20 times all in all.

I even went as far as replacing all 4 tyres. Plus 4 wheel alignment.
Still the same.

When on the balancing machines the wheels are all fully balanced before putting back on my car.

BMW dealer have said it will need to be trial and error now to try find the issue by replacing certain things.

I put a post up a couple of weeks ago as was thinking of changing wheels to see if it’s the wheels or not, but that will cost be in excess of 1.5k so would rather avoid.

Any suggestions?

Thanks very much,

Hello,

I had the similar sort of vibrations on my car when I initially bought it approved used from Sytner. It was only a year old car and I used to get vibrations at similar speed.

Luckily for me, as the car was under warranty I kept on ringing back till the issue was sorted. Long story short, after trying all different tyres and numerous wheel alignment and balancing, they tried a new set of wheels on the rears.

After a test drive there was no noise or vibration. Fortunately for me as the car was under warranty Sytner had to put a set of wheels at the rear and the issues was rectified.

May be you can try a set of wheels if available at all before shelling out so much money.

Hope this helps.

[Jimbob1302]

Hi folks,

Mileage is 91k so nothing really for an almost 9 year old car.

Thanks for the advice. I’m going to book it into a bmw specialist garage rather than main dealer and see what they come up with.

I’ll of course mention your suggestions.