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audi had quoted 582 fitted........update and solution AA said its not the battery its a sensor on the back brake caliper,causing three yellow lights and two warnings when ignition on.."phew" thats a relief thanks all

It's not right. Juddering, pulsating etc, fine from 5,th gear onwards Isn't there some way of resetting the gearbox?

I take it back, it was more silver and copper dust, suprisingly - its not actually much more to get the engine reconditioned than to buy a 2nd hand engine. Probably worth doing since ill get warranty too. Looking at around £3-4000 and if the garage are feeling generious theyll just fix the sticking valve (if it is that) without doing the whole rebuild.. ill keep you updated

I have the same on a Q3 sportback 2024. Audi have had it 3 times and have now told me that’s what it’s supposed to sound like. I said what Audi have purposely added a really annoying noise on an expensive car as standard. They did change the activated charcoal line in mine as that is a common issue as they split but it has made no difference. I have had other mechanics say it could be transmission, turbo, air intake timing belt/chain or electrical. I said to Audi what I don’t want is to come back when it’s out of warranty and then be told I have a big problem and it’s going to cost me a fortune. The thing is quite a few people have the same issue so there has to be a problem.

If none of the inputs produce a sound I have to suspect the amplifier is faulty or the speakers are not connected. Of course I am assuming the unit actually has power coming into it. Does the radio show any lights or a display?

c8

Hi Gareth, sorry missed this earlier 🥱 I’ve had a couple of quotes and it’s only a little bit dearer than the citron C3 we have now, and I have told them that it’s a jap import. I’ll have a search and see if I can find out anything about oil issues. thanks

Thank you for answering, I think it might be easier so if I just get the bluetooth adapter for the back of the original Concert unit instead as I am looking for minimal hassle.

Hi - had the same problem and my local garages did not the soft ware to unlock the unit. However I found a local auto electrian who had the software and he successfully unlocked it.

It's a shame i wish people did say whats good about the car, also when they have had good service from a garage etc. I'm in Leicester so if anyone could recommend a good garage apart from the Main dealer in Braunstone. I have read that chapmans in Wigston are good, but I have never used. Are service plans pointless after a certain age or would people still recommend?

Many thanks Richard for your help. I have dismantled both front brake calipers and though the pads and discs are as new, all was really dry of grease. Using the ceramic I greased all as appropriate. Just done a road test the rattle has basically gone. Only a little rattle over pot holes which should avoided anywhere. New caliper springs and gease up -job done. Thanks again.

Thanks Tavi - this worked for me.

Please keep us posted on how you get on

Keep us updated Gustaf. Does anyone know if the brake calipers are the same on all models? I've got a 2015 BiTdi Allroad so trying to identify the correct parts for it. Thanks

So as I thought no screws in the slide out panels or under the triangle, just a load of push in clips that need a bit of gentle persuasion. I used a trim tool bought in readiness, Wetado 8 piece £9 on Amazon, to get the right hand side off first then just gently work all the clips out. The light and boot switch have a small push down clip to disconnect the wiring plug. The adapter for the wiper washer, picture attached is blocked

This thread will now be deleted.

Hi, do you have any parts left?

Hi, It's almost impossible to hear it when driving, I only really hear it when the car is ticking over, so I'm not sure. It only seems to start about 20 or 30 seconds after I start the car as well, not as soon as the engine starts.

Ideally scan the car with VCDS to see if it identifies the module that’s not communicating. There’s a Bluetooth module, but I’m guessing. An auto electrician is probable a safe bet with access to diagnostics. https://www.lllparts.co.uk/catalogs/audi/RDW/RS4C/605/0/035/35010 Not sure if this unit is under passenger side seat or in boot given cabriolet could be a different set up given potential for the interior to get a soaking.

Ethan. Your frequent refilling and short journey make me confidant there has been no damage. No guarantees of course, but I would not be concerned if it was my car.

Thanks Ian, You now need to start testing for voltages and good earths using your multimeter. Regards, Gareth.

Cliff Many thanks for the information, I will have a look to see if this can be disabled. It does not really cause any trouble; I was a bit worried when I first saw the error but I now know that the car will charge with no issue. The MyAudi app for the Q4 is not as good as the app for my previous car A3 8Y, at least I could lock the car if I was away from the vehicle not available in the Q4 version.

Thanks for the update Tony. Note that the job is not trivial so it would be worth renewing the water pump at the same time while the engine is apart. The pump life is similar to the belt and requires the same effort for access, hence the recommendation to do both at once. We have noted before problems with forum access when done through Google. I don't know the details or whether a solution was found.

Yes the squeal is most likely to be the release bearing. Adding that to the high bite point confirms that the clutch is defective and needs to be renewed. Others here may be able to recommend a source for a new clutch.

Was the reply of any help Gerry?