Yes happened once or twice over last two years in very cold weather. Just stopped it immediately then press the start button again and fires up instantly. Never thought it was much to worry about tbh.Has anyone had this kind of issue on here where first crank will stay cranking as if its not catching / getting fuel.
Second crank will start up the car instantly (on most cases).
May I know what did you get as replacement?Mine used to do this, I say used to as it was one of a list of faults that Audi couldn’t seem to fix so I just got rid of the car in the end, earlier than planned.
Glad I did, much happier with its replacement.
I suggest you take this case up during warranty. It can help try to find an issue during warranty and help the rest of us out as well
Hopefully your dealer has great mechanics.
I dont have newer vids, but this is how it behaves from earlier.
I was told by big local (Non official audi dealer) vag group repair shop to leave it cranking for longer time. There should be safety that kicks in and stops the engine crank, this may save error codes into system.On the few times its happened I didn’t leave it crank as long as the video. Just stopped it and started instantly after. This has happened before and after the recall for the starter (or alternator, I forget which it was). I did mention it to Audi at one service and they said they couldn’t repeat the fault.
To be honest, the windscreen could fall out and I don’t think they’d notice. I’ve lost count of the number of times the car has been back to fix the dash rattle (back in next week, yay). Warranty is up next month and still not fixed, ****** useless.
BMW M340i xDrive. Only had it 3 months but IMO it’s a superior car all round. Although my A6 was only the FWD 40 TDI.May I know what did you get as replacement?
Mine had multiple dashboard rattles, none of which were ever rectified, unbelievable really, I thought it was just my local Dealer but obviously not!On the few times its happened I didn’t leave it crank as long as the video. Just stopped it and started instantly after. This has happened before and after the recall for the starter (or alternator, I forget which it was). I did mention it to Audi at one service and they said they couldn’t repeat the fault.
To be honest, the windscreen could fall out and I don’t think they’d notice. I’ve lost count of the number of times the car has been back to fix the dash rattle (back in next week, yay). Warranty is up next month and still not fixed, ****** useless.
ohh, I got my rattles resolved fairly easily I am quite happy with the car, just this one issue is really terrifying.Mine had multiple dashboard rattles, none of which were ever rectified, unbelievable really, I thought it was just my local Dealer but obviously not!
I was told by big local (Non official audi dealer) vag group repair shop to leave it cranking for longer time. There should be safety that kicks in and stops the engine crank, this may save error codes into system.
I have been really worried about doing this earlier, I might as well just let that happen when the issue happens again... but who knows as it is so random, maybe it wont happen for a year or worse, if there is indeed cable harness issue(heard it was found by engineers for one person in german forum who also has endless crank issue, and instant start on second crank) it will just keep cranking and maybe kill the starter? Possibilities seem to be endless.
My car goes in on 7th of Feb for another round of checkups, Hopefully with all the possible solutions/causes i've provided they manage to find it.
If they do, I will make sure to give updates.
Go push them a lot during warranty! My warranty is over and diagnosis will most likely be for me to pay, if they find the issue I hope goodwill will kick in and they share the costs as it was issue since warranty.
There were no errors recorded.Do you by chance have any errors saved?
Such as;
19 Gateway - Databus missing message U112100, Intermittent (TSB points towards cable harness defect for transmission)
02 Transmission - Gear Shift Control Module "A" P085D00 Intermittent
09 - Central Electrics - Databus error value received - Intermittent
13 - Adaptive Cruise control - Databus error value received - Intermittent
In short odd signal errors that point towards cable harness defects?
Why I am even thinking it can be cable issue is because I recently had front left level sensor with cable defect by manufacturing error.
Cable underneath was running inside the seal, yet it had defect which caused it to corrode and cause issues. Cable was fixed by dealer.
Sadly battery is not the issue for me and seems to be more mysteriousI had experience of this when I had my 2019 40 TDI. Always felt to me like a battery-related issue, Audi techs said this was unlikely but when my battery was swapped out the problem disappeared (turned out battery wasn’t holding charge, after the dealer kept the car overnight for several days). I also had central locking issues, which again made me think it was a battery fault. My brother’s A6 Avant also had to have its battery replaced, makes me wonder if there was/is some kind of systemic problem with the batteries in C7 and early C8 A6’s.
Cold weather and everything shrinks, gaps may become wider etc. But I wouldn't go with fuel anyway. The engine doesn't start no matter how long you crank it, right? So why doesn't it start after say 10 or 20 secs of cranking? It is not about fuel 99% sure. There is no logic.This problem started for me after about 2 years, I've now had this problem throughout the whole of the previous winter (20-21), it went away in about March and then re-started again in October and has continued, particularly in December and the early part of January.
It has been into the dealer several times, and I've provided them with videos. I asked that very question about whether I should leave it trying to start, so that it might end up showing the fault. The senior tech told me explicitly not to do that. He said that once I had identified that it was not going to start (within a couple of seconds) I should hit stop. All it will do is put extra strain on the battery and starter motor, and if it does eventually capture a fault, apparently it will just be a random "crankshaft out of position" error, or something similar, rather than what is the actual cause.
Like everyone else, this only happens on first start-up, and even then, it is intermittent with pattern (wet, frost, days untouched, etc), but generally in the middle of winter is happening at least every few days, and for a short while every day. It's been mentioned in another thread here.
The senior tech that I spoke with thinks it is a fuel issue and maybe fuel is draining away overnight, and then perhaps the fault lies with the way the low pressure pump initially delivers fuel to the high pressure pump at the inlet. That explains why it only occurs on first start, however it doesn't explain why it is intermittent, or why it is only during winter. He suggested that I try leaving the ignition on for 1-2 seconds before starting which should ensure the low pressure pump has got fuel to the engine. I thought that had done it, and I hadn't had the problem for the last couple of weeks, however it happened again yesterday despite leaving the ignition on for 10-15 seconds. So, I guess that isn't the issue...
Cold weather and everything shrinks, gaps may become wider etc. But I wouldn't go with air leak anyway. The engine doesn't start no matter how long you crank it, right? So why doesn't it start after say 10 or 20 secs of cranking? That should be more than enough time to get fuel to the injectors. There is no logic.
I wonder if there is anyone that has had the issue with a 50TDI? If not, it could be related to the fact that the 40TDI only has the 12v mild hybrid system, rather than the 48V version on the 50TDI.Happened to me yesterday, I hadn't used the car for 4 days. The cranking was happening even when I took my finger off the start button. I pressed it again to switch off the ignition and it stopped. I then tried again and it started first time and then never happened again. Strange.
Oddly enough tfsi variants dont have this issue that are also on 12v system, so far I havent heard a version of non 40tdi having issue like this.I wonder if there is anyone that has had the issue with a 50TDI? If not, it could be related to the fact that the 40TDI only has the 12v mild hybrid system, rather than the 48V version on the 50TDI.
Out of interest, is this this first time it has happened to you, or just the first time you've mentioned it here?
It's happened once before, again after a period of not being used.I wonder if there is anyone that has had the issue with a 50TDI? If not, it could be related to the fact that the 40TDI only has the 12v mild hybrid system, rather than the 48V version on the 50TDI.
Out of interest, is this this first time it has happened to you, or just the first time you've mentioned it here?
petrol and diesel engines have very different ignitions systems, which is probably why there are no reports of the problem with the tfsi.Oddly enough tfsi variants dont have this issue that are also on 12v system, so far I havent heard a version of non 40tdi having issue like this.