Stevey Y

Hi dye testing is a must as that will show exactly where the leak is rather than guessing, can't help you with the evaporator unit change but that item is odds on favourite as the moisture rots it out. Steve.

Hi go on a site called ZAP 7 and put in your VIN that should bring up a parts catalogue for your car, the part number is the key to getting the right part and YouTube is the best source of how to if you are unsure how to fit the part. Steve.

Hi yes its the switch on the pedal, it could also be the brake light bulbs so check to see if working from the research I have done it appears the switch is a common failure. Steve.

Hi its the clutch master cylinder probably loosing pressure, try bleeding it out, in fact bleed the whole braking system as well, Steve,

Hi you can buy a new cooler on ebay, the last one I bought was from carpartsinmotion an NRF unit which was abut half the price of the last unit from Audi you will also have to get the valve that sits on the cooler about another £150+£256 for the cooler then about £20 on new gaskets only from Audi, the job is an absolute night mare but last time they took the front of the car off and unbolted the DPF/CAT and pulled it out of the front so once its on the floor the job is easy about six hours, no sensor no DPF clean, I was looking on YouTube and there are people who clean both the cooler an cat in situ, may be worth getting a quote from one of them, one of them is an Irishman that seems to go pretty much any where, then get RID because the next thing will be the clutch and if you think this is a drama thats a whole different level , the parts alone are over £1700 without the oil seals you will need about £80, these things are money pits, I ran my A6, same engine as a cab from 2019 until jan 24 and when it was written off I was gutted but when I bought a VW Passat as its replacement after about a month I suddenly realised every part like windscreen wipers and brake pads were about a third of the price, I priced up a clutch for future reference LUK original £500 for the clutch with everything including the flywheel and about £280 to fit, let us know how you get on. Steve.

Hi this is a common problem on any ULTRA Audi its a Cr@p design which is doomed to fail at about your milage, I personally had two fail on me on my A6 and at over 180,000 was waiting for the third one to give me grief when the car was written off, the cooler fills itself with adblu crystals and blocks this is well documented on this site, if you ask Gareth or Cliff they will put you in the right direction of the posts you need to look at, at no point when I had this problem did I have the DPF cleaned or replace any sensors that is gerrymandering for more money. Steve.

Hi yes, with the car running and not in bright daylight raise the bonnet and using a good torch get an assistant to turn on everything, lights, aircon, blower at max, heated rear windscreen and observe if there is a bouncing movement on the tensioner if its bouncing its shot the action of the tensioner should be smooth, with regard to the alternator clutch/pulley the only way to check that is to remove the unit and get it checked by an alternator specialist. Steve.

Hi the part number is on a sticker on the steering box.

Hi sounds like a knackered auxiliary drive belt or a seized alternator pulley. Steve.

Hi sorry old boy but they will dealer only for that year unless you can find a dismantler thats breaking one thats a couple of years older, try Charles Trent at Poole in Dorset. Steve.

Hi personally I would still get it scanned as both those lights really are separate entities as the cat symbol covers that alone and the glow plug light covers a multitude of sins and paying for a clean that you dont need. Steve.

Hi yes its the sensor, but changing the reservoir would be good especially if your original has the deadly silica bag fitted in to it which will eventually burst and cause you problems you can identify this by looking at the reservoir and if its got a little square printed on it next to the antifreeze grade it is fitted. Steve.

Hi probably but it may take some finding, laminated glass is slightly thicker, laminate+glass+ laminate toughened glass may well be thinner its worth checking with a micrometer, alternatively fit the same style of window gear to the side it doesn't fit I think that might be the cheapest option then you know that should fit because both sides are the same. Steve.

Hi for what its worth the laminated glass is fitted for the American market as some states demand this before they will approve the vehicle for sale in that state, my guess is that the production line ran out of glass for that door so they swiped a window from another line to get things moving, I have no doubt there are more like yours floating about but the owners will never know unless the glass needs replacing, Steve.

Hi like the term suggests, without a proper diagnostic scan you are guessing, it could be turbo over, boost, a glow plug, a drop in fuel rail pressure, MAFF/MAP failure, what leads you to the conclusion that its the DPF?. Steve.

Hi dont know what the new one looks like but went fishing on the net and found loads of those on Autodoc and other sites they are quite common so if the new one looks nothing like it reject it, as I said plenty of them available for sub £100 for a Nissens unit which were O.E. anyway, please let us know how you get on. Steve.

Hi the only way is to compare the amount of teeth on the input shafts, unless they are the integral CV ends that just bolt to a flange on the box in which case they may well fit. Steve.

Hi if you could post a picture of the original that would be a great help. Steve.

Hi try cleaning the front of the car, although a lot of these sensors can suffer with issues when the weathers very hot or conditions are very dusty. Steve.

Hi if its the plastic retaining plate between the wing and the bumper you can buy new ones on line. Steve.

If he travels the UK looking for the right car that should cost a few dollars as well as the steering wheel would be on the wrong side, Los Angeles is a clue.

Hi Gareth just go on YouTube to get a taster of the American view, I cite the top cars not to buy Audi, Mazda and a lot of American models including any Ford with an Ecoboost engine, one site was having a go about A6/A8 saying that when they reach a 100k they start to fall apart oil leaks mostly and I can totally concur with that as a fact, I think owners of the older models got the better deal. Steve.

Hi only way to find out what it is would be to scan the car for faults, amber warning is not critical but needs to be addressed. Steve.

Hi its definitely a bad earth or a short to ground, best thing to do is get the car scanned for faults which will pinpoint where its going wrong. Steve.

Hi Gareth I dont think its what he wanted to hear, if you look at all the American reviews on Audi at the moment they are encouraging potential buyers away from the brand and thats the cars with probable good service records, the residual values of Audi are dropping like a stone and thats for good cars, let alone this particular item, the American market views them as an overpriced money pit. Steve.