My yeti has done 125k.  
 

it’s been making a whining/ humming sound when you go over 40mph.  
 

Recently been to Austria in it and it was making the noise on that trip.  We don’t have any faults with it and it was serviced before we went to Austria.  
 

the noise was there before the trip as well.  I’ve just become more aware of it now so it is bugging me.

 

any ideas what the issue might be?   I’m thinking something with the transmission.

 

i don’t think it could be a tyre issue.  These were new last autumn I think.

2WD or 4WD?

 

Where is the noise coming from?

 

The faster you go the noisier it gets, rotational noise?

 

If you lift the car off the ground and 'drive' the car is the noise still there?

 

 

 

If the tyres are NOT directional then swap then from side to side and report back.

 

Thanks. AG Falco

2WD

 

the noise comes from an area I cannot pinpoint.  All around I think.

 

i do think it is rotational connected.  
 

I would need to get a garage to lift it up and see if the noise persists.

12 minutes ago, yeti99 said:

I would need to get a garage to lift it up and see if the noise persists.

If the noise is still there then it is not tyre related.

You / They might also be able to identify what is causing it.

 

Best of luck.

 

Thanks. AG Falco

Wheel bearing ?

@yeti99

Maybe an idea to say what engine and gearbox you have.

Is it nothing to do with the tyres fitted and the tyre pressures?

 

What was done at the servicing out of interest, and pre this last service.

Has it had a Brake Fluid change, brake pads or discs replaced, & did it get road tested at the service? 

Self composting brake disc backplate(s).

The back brakes pads and discs were also done on the service.

 

engine is 2L diesel.

 

service was oil and the filters.  Don’t think it was tested above 40mph 

Not much of a road test then, but neither is a drive from the car parked and into the workshop.

 

Noise there before service and again after means best have the car checked again & a road test by someone with hearing aid on. 

Does the noise change with different road surfaces? If so then it's probably tyre related.

9 hours ago, yeti99 said:

The back brakes pads and discs were also done on the service.

 

10 hours ago, J.R. said:

Self composting brake disc backplate(s).

 

 

AKA stone shields.

Edited 20 August, 20241 yr by J.R.

I don’t understand what you are posting.  Are you saying the back brakes are an issue?  
 

do these have stone shields?  What are stone shields?  Sorry I am not good with mechanics.  

I dont know how to make it any clearer, backplates = stone shields, the protection plates chassis side of each brake disc.

 

I never mentioned back brakes, the backplates are fitted to all 4 wheels front and rear axle, they rust and the mounting fracture making a scraping noise, it could be any one or more of them.

Ok I will point it out when the mechanic comes to have a look.  He’s a mobile one 

To help clarify what is being discussed here is a piccy of the parts catalogue for a 2012 Yeti (as an example).  The cover plate that rots and rattles is item 6.

 

Are you sure it is not tyre related? I posted the following on the Audi forum a month or so ago. I had initially discounted tyres as they have been on for two years.

 

36K miles on an Audi A3 1.5tfsi running All Seasons. Tyre wear totally even, showing 6 to 7mm left across full width of tread and on all tyres. No wheel weights missing, no wheel or tyre damage and no vibration through seat or steering wheel. Brakes in a straight line and steers perfectly. No trim or underbody plastic trays loose. Bonnet latched down correctly. So why am I getting a drone from the front end between 60 and 65 mph across a variety of road surfaces?

 

The consensus is tyre drone, caused by air trapped in the tyre grooves. from all account it is a fairly common thing.

 

Colin

Well when my wife's 2015 VW Polo started exhibiting front end droning between 60>65MPH, when it had its winter wheels/tyres on, I optimistically blamed it on the road surface in Ayrshire in Scotland, then, a few months later, it started showing up on road surfaces in some other regions, so I changed my ideas/thoughts and blamed it purely on the winter wheel/tyres.  That worked well for a few more months until I changed to summer wheels/tyres, then it became obvious that it was front wheel bearing - so I replaced the hubs on both sides and that sorted that out!

Thanks all for the info.  Hoping to sort next week

Hi

 

Don't discount the possibility that it's a wheel bearing.  This gives a moaning/droning noise that gradually gets louder over weeks as the bearing wears.  The pitch is proportional to road speed, and it's most noticeable at 30 to 50 mph on smooth roads when it isn't masked by tyre roar or wind noise. The noise will pervade the car and be hard to localise to one corner. Dipping the clutch and coasting won't affect it.  Sometimes cornering one way will make it louder, but I found cornering to have no effect.

 

For a 2WD car a rear bearing can be checked by jacking up one wheel and spinning it by hand. Front bearings are harder to diagnose due to driveline drag, but sometimes the vibration can still felt by holding onto the hub/spring whilst the wheel is turned.

11 minutes ago, Austin 7 said:

Don't discount the possibility that it's a wheel bearing. 

A further point - the classic way to first check for a worn wheel bearing was to try to rock the wheel whilst the car is standing in neutral with the handbrake off.  That doesn't work any more 😞

 

 

It’s a rear wheel bearing.  We checked all wheels and this one was making a noise as you turned it.

 

getting it changed in 10 days

On 20/08/2024 at 07:25, Prezafab said:

Wheel bearing ?

Glad you're sorting. 

 

(My old Audi allroad started like yours at a similar mileage).