Danboy1973

Hi Andrew Yes i was told exactly the same by Audi Head Office a arrogant !Removed! he was and don't think he could car less about his job let alone Audi's customers, just to get the number of the Ombudsman was a task with him, he even told me basically that i wouldn't get anywhere so just pipe down and just swallow a £2700 as it is not a recognised fault with Audi otherwise there would of been a recall. So Ebay it is, i have been looking but it is like searching for a needle in a haystack as they need to be exactly the same part number. Surely they should do something about this more for their reputation than anything else !!

Hi I had exactly the same issue on my 2016 A4 2.0TDI Avant with only 40000 miles, full main dealer service history !! I replaced the sensor but it was too late and the damage to the ABS unit had already been done from the faulty sensor sending the wrong signals to the Hydraulic ABS unit which then after a week of driving (which the message on the dash said it was safe to drive) the destroyed the unit. When it did finally get into Audi Main Dealer last week they said my car was out of warranty and was £2700 to fix. I did ask for a goodwill contribution but Audi said no and left me with a massive bill if i wanted them to fix it which i have not done yet as the car is driving with no noticeable problems at all but i imagine if i stamped on the brakes the ABS would not work. Just now holding out to see if one pops up on Ebay before the winter sets in but that is looking less likely. Glad you got yours fixed tho.

Morning Andrew, YES i have had exactly the same issue as you, 'Brake Pressure sensor limit reached' fault code c123e it was saying that the brake pressure boost sensor was at fault i called Audi after lockdown & the earliest they could get me in was Sept 8th,in the meantime this dashboard message went from saying 'booster limit reached' to 'Please safely stop vehicle' anyway picked it up yesterday and Audi Colchester want to charge me £2700 to replace the Complete ABS unit including the Hydraulic part for a price tag of £2700 !! I had to kindly decline their offer as i don't just have that kind of money spare after a being Self Employed & a mass pandemic in the world happening !! Anyway i have seen on various threads that this was originally a Software issue of Audi's and that it could of been safely reset had i been told by car at least going into limp mode to top me driving it then it would of cost around £200 not the now £2700 bill for a 3 year old car that has only done 42000 miles with full Audi main dealer history throughout it very small few years it has been built. Complete joke if you ask me. I have asked for them to see if they would help with the cost but it has been a day and i have not had a reply so i am not holding out much hope.

Just had the same with my 2016 Audi Avant A4 2.0 tdi s line, and exactly the same as quote above, firstly had Brake pressure sensor boost & Start/stop restricted have driven around 250 miles in around 3 weeks and now i have a red light & message saying "Brake Fault - park safely" instead of the one before but the Start/Stop is still working fine and the car seems to be braking as normal, had the brake pressure tested on live data, was reading 0 and when brake depressed the pressure increased and was holding pressure with no problems. I have no idea where to go from here nor does my local Audi/VW garage other than to replace the whole lot which obviously i do not want to do if not needed and also have been reading other threads saying i could damage the ABS pump (if not already damaged) if i carry on driving it. Being only a one car family it is a major headache. At the end of the day it is what it is but i cant afford to chuck good money at parts i do not need. Why is nothing ever easy ! If anyone knows where i should go from here please let me know.