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to lose all of the light cluster would to me be a ground wire broken. this falls very much in line with Gareth's reasoning. i would be concentrating on proving continuity of the ground wire last time i had to look at a similar problem i found most of the wires in the harness were damaged and had to be cut and rejoined. Regards Ken

I believe it was an optional extra in certain models too. Naturally a coil spring version will be easier to maintain. As the complexity of air suspension can cause various issues. Including: Leaking bags Failed compressors Wiring issues Level sensor failures.

Hi yes most definitely. Steve.

Hi just had a look at my daughters Q3 its a late 2013 but I am pretty sure its the same engine and the thermostat housing is at the front of the engine below/behind the throttle body, its doable as long as you have a decent 1/4 drive socket set and the special hose removal pliers both items cheap on eBay, you will have to remove the throttle body and turbo hose to get at it then its just a case of two bolts and the clips for the hoses to remove it its one of the sealed unit type so you can't take it apart, new unit required plenty about that are quite cheap. Steve.

Many thanks Ryan. Really pleased you were able to find the fault and fix it, and great that you were able to let the forum know. Your bad experience and it’s resolution could stand someone in good stead in the future. Many thanks too for the kind Christmas sentiments, and we obviously return these good wishes to you and yours. Enjoy! Kind regards, Gareth.

Yes they made a really good job. Did it at home on the driveway. Checked it out this morning wouldn't even know any thing had been done. Brilliant sharp picture probably going to drive in reverse from now on. Just like to say "Audi" to everyone and have a great Christmas.

Hi Gareth thanks for the input, turned out to be a blown plug that connects into the light. can’t believe I didn’t check this in the first place. however it was indeed your input that lead me to investigate the wiring etc, just nipped to the breakers and got a new plug with the wires cut back and rewired onto the wires on the loom. and would you know.. ITS WORKING AGAIN! thanks & merry Christmas to you and yours. also thanks to other input from the other member! Thanks again Ryan

No Ryan, not within the tailgate. Open the tailgate and look up to the top right? hand side near where the tailgate hinges. You should see the covered linking harness running between the body and the tailgate - obviously it will be flexible. Don’t go taking the tailgate card off - no reason to at this stage. One thing at a time! Kind regards, Gareth.

Hello Ryan, Many thanks for being in touch with the forum, and Season’s Greetings to you and yours. Having done what you have done, my next port of call would be to check the section of wiring which runs within the flexible rubber covered harness between the main body and the tailgate section. If you carefully peel back the rubber at one end, you can then inspect the wires which run within the rubber sleeve. This is a favourite area for wires to break due to years of flexing when opening closing the tailgate/boot. - particularly during this colder weather when the wires become harder and more brittle. Please come back to us Ryan, if you find broken wire/s and we should be able to advise on the best way to sort it. Perhaps you would be kind enough to let us know anyway. Kind regards, Gareth.

It does..had the orange one show up then vanish when the alternator was playing up. This happened a few times. Then i got a red one which told me to stop ASAP (which i didnt) and then it eventually died. Alternator had died and so did the battery so had to go in to get a new alternator fitted. Moral of the story- stop if it tells you to stop!

Thank you Gareth. Merry Christmas and a Happy New Year