Juha

You need to use picoscope to identify noise source… it is system including microphone/ microphones placed close to suspected noise source.

My tranny noise did not have any relation to weather conditions.

hi again,

Differential and it’s bearings replaced, noise is GONE. Jihuu, finally. Bearings have clear scrathes and pinion gears have quite strange markings… these could be bad machining or someting more severe… clear quality issue. From where did the particles come from, remains open question. Few pictures from damages attached.

On 7/12/2017 at 8:28 PM, Gavo said:

Good Afternoon All,

Apologies if this has already been answered but i could not find anything within the search.

I have recently purchased Audi A3 2012 2.0 TDI - 70K on the clock, and i seem to be having an issue. Everytime  i turn right at low speeds i can hear a grinding/humming noise but when i turn left i dont hear anything. I have recently had new disk and pads all round and 2 new front calipers as they had seize not sure mentioning these will help in anyway. I have recently had the drivers wheelbaring/hub changed as i thought this was the issue as i could hear it louder  on my side than the passenger side so had it straight in for a repair. i have changed the wheels over just incase it maybe a tyre issue but by changeing the tyres over the noise is still present so i know its not a tyre issue, before changeing the wheel baring i did try and feel for any play in both wheel but both seems solid no play what so ever but i did read that even a bad wheel baring may not have play in due to no weight on the wheel/baring. There is a small amout of vibration in the steering wheel at high speeds but not a excessive but when turning right at low speeds i can hear grinding/humming but disapears but as i starighten up. i dont want to be replaceing the passenger wheel hub & baring if this is not an issue.

 

Just to add i have had the car off the floor and started spinning the wheel and can feel a vibration through the passenger coil spring and when turning a vibration can be felt through the passenger coil spring but the drivers side unable to feel anything when spinning the wheel or turning.

 

I hope one of you are able to help or had the same issue and could confirm that its likly the wheelbaring on the passenger side.

 

Thanks in advance

 

Gav

hi, 2014 Audi A3 1,4 TFSI COD with 97000km and I have been heavily struggling to find reason for ”rubbing” ”noise from front of the car when turning to left. Noise is gone when driving straight or turning right. I have changed myself: front wheel bearings, left driveshaft and left top strut bearing… these were not a solution. Car is at the moment (2.11.2021) in our local Audi dealer workshop for gearbox check… I got today information, gearbox is disassembled… differential and it’s bearings are damaged… RCA found!

They have repaired ”few” (as they said) similar cases during past years… I have a strong feeling that this is a quite common issue on these cars. Repair cost estimate is now 3000eur, let’s see where we land in the end.

Juha

sorry for typo… my car is 2014

On 3/12/2020 at 12:24 AM, mike graham said:

Hi all

Having trouble with a 2006 A3, turning left underload the loud rumbling/rubbing sound appears to come from the O/S/F wheel area, had new tyres and driveshaft fitted but still does it, although sometimes its hardly noticable, then I'll try turning fairly hard or quickly again and it sounds like the wheel is coming off, very odd! I own a garage and my mechanic is scratching his head, has anyone resolved this? Thinking wheel bearing under the load now but all seems tight and no play in the wheel or whirring noise etc, strange thing is if I depress the clutch or put it in neutral when turning hard at say 40mph for example the loud rumbling quickly disappears so only really doing it under power! Please help very annoying! Mike

hi, 2005 Audi A3 1,4 TFSI COD with 97000km and I have been heavily struggling to find reason for ”rubbing” ”noise from front of the car when turning to left. Noise is gone when driving straight or turning right. I have changed myself: front wheel bearings, left driveshaft and left top strut bearing… these were not a solution. Car is at the moment (2.11.2021) in our local Audi dealer workshop for gearbox check… I got today information, gearbox is disassembled… differential and it’s bearings are damaged… RCA found!

They have repaired ”few” (as they said) similar cases during past years… I have a strong feeling that this is a quite common issue on these cars. Repair cost estimate is now 3000eur, let’s see where we land in the end.

Juha