ian.f

Hi, Sorry for late reply. I haven’t solved my issue. Booked in at a mechanics on Dec 9th. I have some heat from front vents, and cold from back/rear-footwells. I’m thinking it’ll be the matrix, like you’ve all mentioned here. As soon as I’ve got it back, I’ll post here and update you. cheers

Concurring with the above posts. I’m astounded at Audi’s behaviour completely through the ownership of my A4. It cost me £16,000 in 2019. I’ve had so many issues with it, like this ABS issue, ECU failures, I think I’ve replaced every sensor under the bonnet, AdBlue sensor failure, etc, etc. I’ve spent £9k to date and I’m currently looking at another £1.2k on having to drop the gearbox out to disassemble it to get at, wait for it, another sensor! Audi have refused to acknowledge any inherent issues with the B9. All they say is “book it in for a diagnostic” then quote me crazy prices to fix things I can do myself or others can do at half the cost. This was my first Audi, and will be my last VAG vehicle.

Happy you’re sorted Mate. But jee-wizz, £336…daylight robbery. How are we still allowing Audi (and the likes) charge this?! When I did mine (20k post full replace of ABS unit) it took me 10 mins and cost me £20. Shocking from Audi…again. In case anyone wonders, I’m replacing mine every 20k now…not falling for that trap again!

Needs must indeed 😂 Theres a couple on Amazon with next day delivery; my advice would definitely to get one. If it can’t be done for any reason, please please don’t drive it until you can get one fitted. I made the mistake as several others did too…don’t be a statistic!

Sorry I wasn’t clear; I had the juddery brake pedal in mid-2020. After 100 or so miles not sorting it, the abs unit bricked. Had to have it replaced. I learned the hard way, so just lending my experience to others. I think this might be my thread actually 😂

Had this back in mid-2020…very unnerving and we didn’t know the fix back then. I kept driving it and it cost me bad. If I were you, I wouldn’t drive another mile. Get the part yourself and fit it yourself. It’s a doddle. Even if it’s booked in, still get the part. The garage may not have experience and not be able to fit it, or the part may not be available..yada yada yada. If you’re booked to do 1k from Friday, and it isn’t fixed, you’ll 100% need to replace the abs unit by the end of your trip.

Definitely get it sorted before driving any more. £30/40 to replace the sensor, or £x00s on sorting the abs unit. Not worth the risk for you.

My 2016 Avant is equally as confusing! It’s the new shape Sept2016 registered. So it’s the B9 officially. But my V5 says B8. The weightplate on the car says B8.5. Never had any issues getting parts or anything like that but that may be luck!!

I genuinely despair with Audi dealers. How and why would a new water pump be needed in this scenario? The process of draining down probably did release a clog in the heater core which fixed the issue slightly. But if the pipe in is hot, then it’s not a water supply issue. And why a new thermostat? Makes no sense at all. Audi dealer service shops are pretty useless these days I have to say. My local one is full of kids fresh out of college, who just follow Audi’s online fix process, rather than diagnose anything.

Interested to know the outcome here too please. I had the same issue. Flushed the core which helped a bit, but still not as it should be.

On the AdBlue topic, you can get the no restart message flashed out of the ECU at a fraction of the cost of replacement parts. Give Andy at https://ecuflash.co a call. On the wider get rid or keep topic, I’ll never buy another Audi again. 16 plate B9 (actually B8.5 according to it’s car plate). Owned for 5ish years and I’ve put 50k on it. 80k in total. I’ve spent about 7k keeping it on the road, fixing issues that shouldn’t be there for a car this age and mileage. Not including “on-the-road costs” like tyres. -Had the brake servo/abs issue. -Had the AdBlue issue. -Odometer failed and had to be replaced. -2 broken rear coil springs. -Have the issue with low interior heat. -5 (yes five) new sets of front discs/pads due to excessive warping. -1 new calliper. I can go on, but suffice to say my experience of “Vorsprung durch Technik” is actually “our technology is crap”.

Had this issue. Filled the tank to the brim, then immediately had 650mi until no start…the day before I had to make a 640mi round trip up north. The last 20mi home was squeaky bum time I can tell you. In the end, I’ve had a guy “map out” the “no restart” function from the main ECU. Gets rid of the panic over no restart, just leaves the fault in place. Not bothering to have it fixed as the car is fine with the fault in place. Will wait for Audi to issue a recall to fix the, clearly common, fault. I’m guessing I’ve got more chance of !Removed! from a rocking horse than a recall, but let’s see! If anyone’s interested, the guy is Andy at https://ecuflash.co

Reading this thread has me back in June 2020 having an absolute nightmare with this. Had the same sequence everyone has here. Brake servo restricted message. Then the park immediately message. Long long story short, I ended up sending the bricked abs unit to ECU Testing, who said they’d never seen this issue before. But they managed to fix it. So for anyone who has the abs unit problem, get your mechanic to remove the abs unit (if you can’t do it yourself) and send it to them. I recall it was like £700 for the whole fix. Much cheaper than a replacement. Hope this helps someone.

Yeah I’d assume it’d have a similar function. Defo worth a look 👍👍

No problem. Just a little update, post flush. We’re away this weekend, so have put 150mi solid drive since the flush. The car is now much hotter. Still nowhere near where my wife’s GLA gets, but I wasn’t cold on the drive. @Redwolf do you have Carista by chance? I do, and found a HVAC calibration which checked and set all the flaps on the vents. That would (I think) throw an error is any we’re stuck. Don’t know if that helps or not.