Hi!

 

I while ago my Octavia started to have a humming sound when I was driving but nothing serious so did just ignore it. But now it's started to hum a lot louder and I've been thinking that it's the driveknot(?) or the wheel bearing that's wourned out.

 

The car has done almost 90000km and the sound are as most intensed in speeds about 60-80km/h.

 

 

Is there some was I can control if it's the driveknot or the wheel bearing?

 

And is it hard to change this parts myself? 

 

 

// Jimmy

Most noise reported in this forum seems to be caused by uneven wear " saw toothing " of the rear tyres. Try swapping tyres front to rear to check that. Wheel bearing wear can often be checked by jacking the car up and rotating the wheel by hand to feel for a rough bearing or free play.

I don't thing wheel bearing issues are uncommon either. Had one rear one done already on my vRS and other side being done in Monday. Not much noise off them though - they were highlighted at the MoT.

Front or rear? My last car was a 2010 Octavia II 1.8TSI 4X4 Estate which had a front wheel bearing replaced at 20K under an extended warranty. I had a spare set of alloys with tyres so was able to confirm that the noise was not tyre-related. Symptoms were a droning noise which started at 25mph and increased in volume with speed. The noise appeared to be coming from the front offside but unhelpfully didn't vary when turning left or right.

The sound seems to come from the right front wheel (driver side in UK) and it's droning like dsw said.

I've jacked up the car but didn't feel anything more than that the wheel didn't rotate as easy as it should. But I did never jack up the other side to compare, maybe I should do that.

I don't think it's the tyres, replaced the front tyres at 8000km and I did also a four wheel alignment at the same time.

my wheel bearings started humming at that mileage. It is slightly more likely to be the nearside bearings that fail first as they get more pothole knocks. It is common for there to be no noise when spinning the wheel unloaded even if the bearing is damaged so it is not a very reliable test.

It is not an easy DIY job and I chose not to but it can be done with the right tools.

Okey!

 

It also feels a bit like driving on a train rail if I turn in higher speeds. But I will do some more tests on the car to be sure, and I don't think I wanna do that repair myself unless there's a good guide somewhere? 

The bill for the warranty company was £200.