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Primed pressurised fuel lines can hold 1-2 litres (diesels). For context I’ve got the 73 litre tank capacity. I’ve ran my tdi 40 unintentionally to 12 mile range (according to dashboard) I filled up and put 61 litres back in. so I knew that I had well over 10 litres in the tank but as others have said your destroy the pump and most likely be sucking up debris that unfortunately does get through petrol pumps. Not recommended to let it go below 1/4 of a tank if you can.

I’d thought I’d check in on this as my tdi 40 is now coming up to 3 years old. My a/c is always on during summer without fail. This is the first time I’ve ever heard this, this loud. I normally can mainly hear it in the cabin when turning steering wheel on full lock, you know that a/c moan/groan sound. it sounds like the condenser fan blowing, picks up pitch and rhythm with rev counter. So I’m going to assume it’s probably belt related. Anyone experienced this? I’ve booked it in but typical main dealer response ‘ this is fairly normal’ ‘have you added refrigerant in the last 12 months’ For context it was regassed last year even though I had no concerns I just do it given that I know the gas will leak and also lubricates the system.

Hi try reading the MAF and MAP sensor readings on live data when cold start, I would guess it could be the MAF sensor if its the original unit as they tend to play about when they get old. Steve.

Thanks Paul, Never heard of that brand - let’s hope it turns out good - and lasts. I don’t go for good deals (cheap) on quality-critical batteries, but aim to get respected brands at competitive prices. Regards, Gareth.

Not fixed yet the Audi dealer is too busy to look at it however they did advise NOT to turn the stop start off, so far so good it hasn't shut down again but despite being on the stop start doesn't work as it should, the engine ticks over without stopping. I appreciate the advise to contact Audi road service so I'll give them a call. Thanks everyone for the helpful comments.

Hello all. I have recently changed my 2012 A6 for a 2014 as above. The car is in nice condition but it is using a bit of oil. I have done about 400 miles in it since Tuesday this week and already the oil level has dropped quite a bit. My 2012 Audi did not have this problem . Is it because it is a 3L V6 or does this have a potential oil problem? Many thanks

Few pics from the latest road trip GRMN-2026-06-03_19-59-38-exportedVideo.mp4

Cheers, its on finance, been doing some reading have upto 6 months for them to attempt 1 repair, but presumably will have to get proper diagnotics, will take it to AUDI specialist to have checked over, god knows how much that will cost. and checked the P number lable in boot and gear box type is NYM From internet: The Audi "NYM" is an 8-speed Multitronic automatic transmission, which is a type of Continuously Variable Transmission (CVT) And the gearbox filter just had changed is the round thing that goes in top of gearbox. I wish it wasent CVT (own fault for not doing enough research, but will see, I have been trying to do some research and people have said this thing has mind of its own and when use manual to drop gear it can go back into normal automode by itself if thinks may be at risjk of causing an issue, as I say there are no fault codes on gearbox, its dosent slip under accelartion, just this slight hesitation when moving off when warm. Apart from that eveything else is smooth.

Hi, not sorted yet, everything points to the fact that they are correct, even from the manufacturer. I’ve decided to go with OEM from Audi. Paying for a job twice isn’t the best and the cost for Audi ones are quite expensive compared to aftermarket. Not sure I’ll get the money back on the springs. Once again, hindsight is a wonderful thing and thank you for asking.

It's a bug. Both my current A3 and my previous Q3 both constantly showed "Irregularities detected" and Windows "rear open" in the myAudi app. Needless to say, all doors and windows were securely closed and locked. I did post a comment to that effect in the Apple App Store but no sign of a fix.

Hi All, can someone help and advise the part number for c6 avant, fwd, 2.0tdi rear subframe, please? I am struggling to find one.

Failure of flap motors/linkages crops up regularly in these forums, so I'd agree that's the place to look first.

I would really like to think that perhaps reactions around rudeness might be as a result of cultural differences, rather than individual personalities. However, if I’m wrong, I will consider closing this thread. Regards, Gareth.

I'm sure I've seen this with other new Audi models. I think there's a software update for the issue.

Nice, looking forward to seeing how this develops

I'd recommend a diagnostic check to see if any fault codes flag up.

Reducing the trim and features seems to be a policy with vag cars. Latest gti does not have an automatic bonnet stay or dipstick. You can buy them separately if you want to retrofit.

thanks for all the help lads,i think ill concentrate now on getting my own engine sorted,as Cliff says a 2nd hand engine will still have a lot of work done so at least with my own one i can strip it and make it good again,itll be a project that i can work on over the next 7 or 8 months.thanks again

Hi maybe it needs adapting again if you have VCDS there are plenty of how to do its on YouTube. Steve.

Lyra

Any comments Paolo? Regards, Gareth.

I have had the system run on VCDS and this was the output: Address 08: Auto HVAC Labels: None Control Module Part Number: 8X0 820 043 B HW: 8X0 820 043 B Component and/or Version: Klima 1 Zone H12 0070 Software Coding: 3420080040 Work Shop Code: WSC 00046 790 00000 ASAM Dataset: EV_AirCondiFrontAU210 006035 (AU21) ROD: EV_AirCondiFrontAU210_006.rod VCID: 3365AACB9A3561070E-8066 7 Faults Found: 0005 - Motor for Central Flap B11AB 07 [00001000] - Mechanical Failure Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 3 Fault Frequency: 2 Reset counter: 105 Mileage: 156728 km Date: 2024.10.12 Time: 09:15:09 Voltage terminal 30: 14.2 V Inside temperature: 12.2 C Outside temperature: 12.0 C Central air flap motor: actual value-Data: 0.0 % Central air flap motor: spec. value-Data: 48.6 % 0008 - Position Sensor for Motor for Central Flap B11AC 15 [00001000] - Open or Short to Plus Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 3 Fault Frequency: 2 Reset counter: 103 Mileage: 156728 km Date: 2024.10.12 Time: 09:14:18 Voltage terminal 30: 14.1 V Central air flap motor: actual value-Data: 0.0 % Central air flap motor: spec. value-Data: 100.0 % Supply voltage for external components: 5.0 V 0040 - Function Restriction due to Faults in Other Modules U1113 00 [00001000] - - [New feature! Extended UDS fault detail is only supported by current gen. interfaces] Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 6 Fault Frequency: 2 Reset counter: 112 Mileage: 157141 km Date: 2025.02.07 Time: 22:04:42 Voltage terminal 30: 10.5 V Outside temperature: 7.5 C Inside temperature: 13.2 C 0051 - High Pressure Sensor B10AE 84 [00001000] - Signal Below Allowable Range Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 2 Fault Frequency: 11 Reset counter: 40 Mileage: 156591 km Date: 2024.09.18 Time: 15:29:10 Coolant temperature: 52.50 C Inside temperature: 41.6 C Coolant fan activation: specified value: 0.0 % Engine speed: 0.00 /min Refrigerant pressure: 1.0 bar Compressor current: actual value: 0 mA Outside temperature: 24.0 C 0060 - Engine Off Timer Performance P150A 00 [00001000] - - Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 7 Fault Frequency: 3 Reset counter: 114 Mileage: 157141 km Date: 2025.02.10 Time: 00:08:19 Voltage terminal 30: 11.7 V Terminal 15 status: On 0071 - Running-in regulation B10C6 54 [00001001] - Missing Calibration / Basic Setting Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 3 Fault Frequency: 1 Reset counter: 88 Mileage: 158535 km Date: 2026.06.17 Time: 09:27:06 0143 - Rerigerant Pressure Sensor B1282 14 [00001001] - Open or Short to Ground Confirmed - Tested Since Memory Clear Freeze Frame: Fault Priority: 2 Fault Frequency: 12 Reset counter: 76 Mileage: 156591 km Date: 2024.09.18 Time: 15:29:08 Coolant temperature: 52.50 C Inside temperature: 41.6 C Coolant fan activation: specified value: 0.0 % Engine speed: 0.00 /min Refrigerant pressure: 1.0 bar Compressor current: actual value: 0 mA Outside temperature: 24.0 C

Thanks for the reply, Audi technical recently resolved this for me, not sure what they did as they did not give me anything apart from ‘Our technical support team have made an adjustment’ I then connected to the car again and the apps were then available to purchase again. Thanks for the suggestion and I did try a second device but with the same error.

Try LLL parts You can get the inserts on eBay too. For the other readers, they are held in at the back with a small plastic clip and if you use a trolley jack and don’t line it up correctly the insert will pull out and damage the clip. Then they wobble and fall out.

It would help to know the mileage on the vehicle mate. The pads should do about 70k miles. Discs twice that.