David Fraser Nicolson

Looks like its sorted , I thought I would check the connections around the ECU so removed the bulkhead trim and found about 6mm of silt / gunge in the area below the ECU , the drain was blocked and whole area looked damp , after clearing silt and unblocking drain I dried the whole area with electrical solvent . 10 minutes later all warning light went out and have not reappeared and that was 3 days ago, so hopefully

And where is it located

Warning light went out driving home , car gave a little hiccup thought I had run over something , only airbag light left on . Warning light back on this morning though ? Date and time wrong I noticed had to reset sat nav to auto ECU ? or still possible alternator ? thought since I was driving at 30 in a straight line unlikely bad connection Can't get on a machine till May as all garages booked solid in Shetland groan

Is this the sensor on the left ? and where is the oxygen sensor ?

Battery is second unit I have had but is 5 years old , its a good quality YUASA though , I can see the voltage on my diagnostic app and at idle its 12.8 , don't know if that's normal but wondering if the alternator is healthy Strange thing is the clock has the wrong time so car must have been dead at some point ? still started though

Tested at work as we have testers we use on various plant around the Port I work at , navigation aids pilot vessels etc , my mate stuck on his new tester to test cold crank when battery was cold, should be 850 CCA ? got about 790 and tester passed battery as good , I had actually trickle charged it a few nights ago at work just in case it was that, must be connected to the engine management light going out it was on before as the nox and oxygen sensors need replacing according to my local garages diagnostic

Audi A7 2016 Diesel quattro 275 BHP Dashboard lit up with most warning light on ? Thought battery was goosed but tested and ok ? Did have engine management light on and was on garage machine and said nox sensor That has vanished and everything else on now

Cool , wonder if a ultra sonic cleaner would work on these ?

Thanks looking for a photo online perhaps this

Apparently my model just has one of these but I have no idea where it is , suspect it near the bulkhead and accessed by removing engine cover ?

After many years away I have purchased another Audi , last one was a 2.4 V6 A4 Avant , now after a Merc an Alfa and a GTC( GM)! I have returned to the fold , always wanted another auto so the A7 fits the bill and of course a Quattro , never had one till now Been trying out all the bells and whistles but concluding my model does not have folding mirrors ? bit surprised but not the end of the world Still waiting on Hyde Audi registering me as the owned to view full spec but can anyone advise what the basic spec is on my model ?