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To add to Gareth's advice, on older audi models if the hazard switch fails or starts to fail it can cause the I dictators to play up. If that's the case the cure is a new hazard switch

Mine has been fine for some weeks now, I did have issues caused by my dashcam. That may not be relevant to an A3 though as it depends where the radio aerial is located, on a Q3 it is in the rear window glass. On a Q3 the Update Station List option is at the top of the main station listing screen on each waveband, it is NOT on the Memory list screen.

Does anyone know what this fault is? thanks

How long have you had the car? Your issue sounds like something completely different to what all experienced. Check you dab antenna, wherever that might be on A3?

My initial thoughts on the noise was that it had something to do with the outer cv joint that was changed as it started within 2 weeks of the job being done , but I have never heard of a bearing or humming noise from a cv joint . It was too much of a coincidence in my mind , but I suppose coincidences do happen after all . Thanks for all yer replies gang , as always ye were very helpful.

I'm going to leave it run for a while as there is no play in any of the wheels and if it is a bearing it will only get louder and will know for sure then, it's going for a service in 3 weeks so it would surly be worse by then if its a bearing. And if its only an tire issue I can live with that until new tyres are called for , by the way the tyre i got was a Roadx brand and thats the only one they had in my size 255/35/ r20 at the time . Don't know what they are like for road noise . Thanks

On older tyres, it's possible to get flat spots, but that's not the case here. You definately want to be running with the same brand on an axle.

It certainly doesn’t surprise that two different treads on the front would result in varying noises. I personally dislike different brands on the same axle, but can understand your logic in this case. Might be well worth swopping the odd front ones to the back and see if that alters the noise. What brands of tyres do you currently have on the front? Regards, Gareth.

You could test the idea if you have a spare wheel with a different brand of tyre. Change each wheel in turn to see if the noise disappears. If you don't have a spare wheel then I guess you either have to live with the noise or spend a lot of money on new tyres that match the old ones. Given that I can not hear the hum you mention I can not comment on it, but in my experience bearing noise is very different to tyre noise.

Hi I actually have got 2 new front tyres in the last month , and unfortunately they are 2 different makes in front (had a blowout and had to get a different tyre in emergency) , could be onto something as the noise is worse on smoother surfaces and not so noticeable on other surfaces . If thats only the case i can live with a slight humming. But to me if definitely sounds like a rubbing noise or bearing noise , is that possible with tyres?

I can't hear anything untoward, but that's not unusual. Most of the audio recordings sent to the forum supposedly have an odd noise that nobody except the owner can hear. The usual culprit for strange humming noises like you describe is the tyres. Not because they are necessarily defective, but because the tread pattern interacts badly with some road surfaces. Have you changed the tyres recently? Have the roads on your normal routes been resurfaced recently?

Welcome Kieran and thanks for joining. I take it you have a multimeter and have checked to ensure a good earth on that side, and presumable an absence of 12v -? If so, it would be well worth checking the wiring within the flexible harness section twixt body and tailgate. A favourite location for fractured cables. Regards, Gareth.

Hello my name is Kieran I have a audi a6 avant estate 2007 reg is vn07aet I've got a strange issue with my rear left indicator cant get it to work replaced unit bulb holder and bulbs checked fuses with continuity test. The front left and side signal still work rear left still doesn't come on if I engage the hazards please help its frying my brain

Hi I have jacked the car up and spun the wheels and checked for play , nothing . But it is mild at the moment and might not be gone far enough to cause movement on the hub at 12 and 6 o clock , sounds stupid but I cant seem to spin the front wheels fast enough by hand to hear anything , back wheels no problem, and don't have access to a full car lift . I suppose my main worry is can the gearbox or something more serious cause this wheel bearing type humming? it doesn't seem to change pitch when I coast as in taking my foot off the gas , so that would lead me to wheel bearing. Should a wheel bearing be changed at the same time as the outer cv joint , is it common for a bad cv joint to damage a wheel bearing ? And how long can I drive this way if its slight and no play in the wheels ? Thanks

Thank you for your speedy reply. I will try again today to find the list of ALL the stations. One thing is for certain reading all the posts in this thread is that Audi will be of no help ! Thanks again.

Hello Colin, Much has already been said on here about VAG’s current recommendation of not renewing belts until c140K miles, with no age limit. You will see from a search that the forum generally does not hold with that schedule, and suggests sticking with their previous recommendation of change at c75K miles, or 5 years - whichever comes first. The logic will be outlined in the searched threads, but basically boils down to VAG are not in the business to sell dealer time in changing cam belts - but selling new vehicles. If a vehicle’s engine expires due to belt breakage, then they have an opportunity to sell a new vehicle. Worth a search and a read Colin. Please let us know what you decide to do. Regards, Gareth.

Any smell in the car I’d be looking at ant-bacterial treatment on air conditioning. You can get similar smell from screen wash reservoir if not using correct additive. If it’s from the car under load, next thing to check would be catalytic converters.

No, never tried it. Cheapest VCDS package is £225 for 3 VIN licence, plus an old laptop. Works on all VAG cars, so Audi, VW, Skoda, etc. Very useful for this procedure. Remember and hook up battery on trickle charge when swapping out discs and pads. You can use it for fuel pump priming, clearing DTCs, fault finding, etc.

Can’t hear the video, but to be honest between road noice and background noise, these sort of videos rarely identify culprit. If you had new outer CV joint, that may have contributed, especially if drive shaft boot was torn and and CV joint was open to the elements and contaminated. if you’ve got a worn wheel bearing then you’ll hear constant reverberating sound, around about 40-50mph. You might be able to pinpoint if you jack up car, and hold the coil spring and get someone to rotate the wheel. Any friction on the bearing will transfer to the spring which you should feel. Straight forward if your spanner handy, although I hate generation 2 bearings which are the press in hub variety on VW Polos for example. If generation 3 wheel bearing, then they are held in place with triple square bolts. Useful to have air hammer as the bearing is usually welded in with oxide corrosion if an alloy strut. You’ll need a breaker bar, torque wrench, etc. Fit quality F.A.G. Bearings given labour involved.

Hi All A weird humming noise has started in my a6 , now it's not very loud but just looking for ideas , it seems to be there when I accelerate and when coasting , it's the same level all the time once started , im wondering wheel bearing, it doesn't seem to change in pitch when turning left or right . I recently had a new outer cv joint fitted and this humming noise has started within 2 weeks . I am uploading a short video , you can hear it as I coast to a stop . Just wondering do ye think wheel bearing , tire noise or something else ?? Ive read about transmission noise can be humming , but don't think it's that as car is driving perfect and absolutely no issue with gear changes or slipping . 20250614_033652.mp4 Thanks

My rule of thumb is 60k miles or 5 years on 4 cylinder diesels. Change the water-pump, and tensioner pulley as a matter of course. Cold starts, towing, extremes of heat all have to be factored in. Do auxilliary belts at the same time. Sure I’ve read that it can go to 140k miles, but if it breaks, then you pick up the bill. It’s not normally the belt but wear on ancillary components such as bearings on pulleys, water-pump, etc.

How often should the timing belt on A3 2013 2.0 TDI be changed ? Thank You.

This wasn’t my list of saved stations in the memory, it was the very top of the list of all stations. May be slightly different in an A3 to a Q3 but can’t be sure without comparing side by side.

I can't get my Mmi to come up with 'UPDATE STATION LIST'How did you get 'UPDATE STATION LIST' to appear at the top of your radio list ? Is that your list of radio channels saved in 'Memory' ?

Does that mean you were not given the service history by Audi when you purchased it?