NewtonHeath

Mine is a petrol, so no adblue involved. Sorry, should have mentioned that at the outset.

Hi. I live in a built up area with a lot of schools nearby so it is realy for environmental reasons I require it to work. Once I head "out of town" am happy to turn it off. But, that is my choice (and I can press the button on the console to make it) and should not be the computer's. Especially at the moment, the a/c has to be on to stop the car steaming up. I shall check out tis VCDS thing once I find out what it is. Thanks for all the comments/suggestions

Hello Jon. I purchased the car 2nd hand and it is nearly 5 years old. The light on the centre console is unlit at all times, but the little A on the dash comes on green when the a/c is off (and the engine cuts out) but comes up with a line through it when the a/c is on, suggesting I have disabled the system when in fact, I have not touched it.

Thanks Duncan. I think I may have to go to a garage and have my "codes" checked. I have to get to the bottom of this as it is getting very frustrating now.

Hello Martyn. Thank you for your comment. I hope you are right and I am going to find my local Audi dealer and pose the question to them.

Hello Andy. Yes, that is what the garage told me, but I find it hard to believe. I have driven vehiclers from Renault, VW, Vauxhall and BMW and none of them have had this issue.

Hello Magnet. No, but it was our local Audi.VW specialists so hopefully they know what they are talking about.

Hello Magnet. Funnily enough, the battery was highlighted when I checked the car in, but when I picked it up he highlighted the air con v stop/start issue. I assumed that he had tested the battery while it was in his workshop and ruled that out as an option. I am running the car without the air con right now to test the theory, and the stop/start works. Unfortunately, you then have to keep putting the blower on full to clear the windscreen. Going forward, the air con will take precedense, so if it is a fact, then it is the atmosphere/local residents who will bear the brunt !! I will however, go to my local Halfords this weekend and ask them to check the battery, just in case.

I have recently had a new condensor on my A4 to fix the aircon, but now the stop/start does not function. The dealer is telling me that you cannot have both functioning at the same time, which sounds mad to me. Does anyone know if this is actually true ? I have turned off the aircon to test the theory, and the stop/start has become operational again, but this has never been the case in any other make I have driven