Hey everyone! Just noticed a problem with my octy. 

It vibrates quite a lot at 80-100km/h. It disappears during acceleration, and I don't think it's there when the car is cold. It feels exactly like a unbalanced wheel. But that should not disappear if I put the accelerator down? What could cause this? 

 

Thanks for answers!

Have you visually checked all four tyres for uneven wear or kerb damage?

 

Have you hit a pothole recently i.e. could you have bent or buckled an alloy, or knocked out the alignment / tracking?

 

Does the steering pull to one side at all?

10 hours ago, silver1011 said:

Have you visually checked all four tyres for uneven wear or kerb damage?

 

Have you hit a pothole recently i.e. could you have bent or buckled an alloy, or knocked out the alignment / tracking?

 

Does the steering pull to one side at all?

I have hit a pothole some time ago. This morning I noticed being very sporadic. But it happens over 80kmh. After driving for 80 a while it disappeared. Then after a roundabout it started again. I will check my tires or even change to winter tires and see if that helps!

 

Yeah the steering wheel points slightly to the left, and I think it's slightly pulling left as well . Just think it's strange that the vibrations are so sporadic.

Edited 26 September, 20196 yr by andreasw

Tyres move and stretch as they warm up and cool down. You might have a very slight defect.

 

Check tyre pressures too. Any droning that might suggest a failing wheel bearing?

Yeah that's true. Now that you say it. I inflated the tires yesterday to 2.5 bar front and back, I think that worsened things. I'll put in the recommended low load pressure and see if that makes a difference. Thanks for the great tips

2 hours ago, andreasw said:

Yeah that's true. Now that you say it. I inflated the tires yesterday to 2.5 bar front and back, I think that worsened things. I'll put in the recommended low load pressure and see if that makes a difference. Thanks for the great tips

If at proper pressure it still pulls to the left then I'd suspect alignment from the pothole. 

 

Unfortunately, as great as electromechanical steering is, it makes even slight steering issues very noticeable 😛

Im happy to announce that I fixed the problem. It was caused by a dragging front brake. Thanks for all the help :)