Grumble/Droning noise from rear

[ScottEvs]

Hi all I bought a leon fr 2015- on Monday and I've now noticed I got a grumbling/Droning noise from the rear end particularly at 40mp can't work out if this is the bearing or just normal? The noise is still there if I put it in neutral and roll too?

 

[Big Col]

it will probably be the tyres, Is it on bridgestones ?

burn through the tyres asap and fit quality replacements. Michelin or Goodyear are best ime

 

[BoomerBoom]

Run your hand around the inside edge of the rear tyres, forward then backwards.

If you can feel a difference between then look for saw tooth wear on the inner tread blocks.

My last VW used to suffer terribly from this, swapping the rears side to side every 10k helps, but it's mainly down to the toe in geometry of the suspension.

 

[LouG]

Jack it up and spin the wheels, you'll soon hear if a bearing is shot.

 

[thecalstanley]

I’ve had the same issue, ended up being the wheel bearing. Got it changed for free under warranty.

 

[SRGTD]

Run your hand around the inside edge of the rear tyres, forward then backwards.

If you can feel a difference between then look for saw tooth wear on the inner tread blocks.

My last VW used to suffer terribly from this, swapping the rears side to side every 10k helps, but it's mainly down to the toe in geometry of the suspension.

I also had a problem with saw tooth wear on a mk5 Golf a few years ago. It did sound very much like a worn wheel bearing, but it was the tyres - you could see and feel the ‘stepped’ saw tooth profile of the inner tread blocks.

Seems to be fairly common on VAG cars with independent rear suspension, so if the OP’s FR hasn’t got independent rear suspension, then the droning noise is more likely to be a wheel bearing.

 

[Seriously?]

SWMBO had this on her Ibiza when the tyres wore to about 3mm. New tyres solved it.
The only grumbling/droning noise I've ever encountered in a car was Her Indoors moaning about my driving.....

 

[AndrewJB]

Bearings are weak on MQB

 

[ScottEvs]

Ok thanks guys, checked the tyres and it's two greenlands on the front and two sunnys on the back? Guessing they're cheap ones

 

[Big Col]

yeah they're budget chinese ditchfinders
I'd be looking to get rid asap