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New MAF sensor installed. Both fault codes cleared. Only problem will be how long the MAF sensor lasts this time. If anyone has any thoughts on where to fo with loom investigation that'd be appreciated.

Hi, im having a similar issue as to Gillian with the car Alarm, i have a Audi A7 where the alrm is going off randomly, ive actuality disconnected the interior sensor inside above the drivers rear mirror as i was thinking it was an inside problem but its still going off, would be handy if anyone knows where the other sensors are as i could do the same to try and irradicate the isssue, Thanks in advance if anyone can help Gordon

febi bilstein 48801 Pressure Reservoir for vaccum system

Thanks Colin, The handbook should give you choice which was available, but will not tell you what the car was fitted with at build. Just wondering why you want to know, and what the car is fitted with now. Regards, Gareth.

Or just buy 5litres Quantum Longlife 3 which is VAG’s own brand. I never extend oil changes out to c18k or 18 months, but change it annually if you do an average mileage. Quantum is available from a number of reputable EBay sellers. 5 litres will allow you to have enough ‘top up’ oil for hopefully a couple of years. Regards, Gareth.

Hi Magnet, I’ve now told them I’m not going ahead with the deal, due to the V5 not been correct, hopefully I’ll get my deposit back 🤔 so I’m now on the look out for a A1 born in the UK 👌

Many thanks for coming back on this Andy. So I guess you are ready to take a chance on the potential oil burning issue, which could cost you well in excess of £220/a -? Regards, Gareth.

Thanks for the quick response - i’ll check that out. Much appreciated. 😀

Suspect it’s 5W30 LL. You can cross check on Castrol’s site basically any oil that’s VW 504.00 / VW 507.00 compatible. The LL is long life, but change at the next scheduled interval.

Hello - my first query here. I have an A6 2.0 TDI 40 c8 (2019) - had the car about 7 months - the top up oil warning has just come on - it still has about 2000 miles until the next scheduled oil change. i want to make sure I top up with 1L of the correct grade of oil - can’t find any clear information in manual or engine bay. A Quick Look online suggests 5W-30, but I suspect I need a specific VW-Audi variant. Can anyone advise? thanks

Hi everyone, newbie here so sorry if this is an obvious question/answer. I have just purchased my first Audi (definitely not the last). I have a 2017 S line. When I open the car or turn the car on the ‘sidelight’ switch inside the illuminates and is permanently on. I have headlights with the little LED (I think it’s led) strip on them. My question is, is this light supposed to be on as when I put the switch to the off button (not auto) it still stays on? Any help would be massively appreciated. Thank you

Anyone know what the part in the white sqaure is called have no idea been searching the Internet to no success any help is greatly appreciated

Many thanks for your reply, it's my g/f's car I will have a look in the hand book. Cheers.

Hi everyone, First time poster here. I'm driving a 2021 A5 Sportback and am noticing a sharp plastic creaking sound coming from the glove box area when going over speed bumps or dips in the road. On occasions I also get this noise on the drivers side too. It's noticeably worse when the car is hot and have a feeling it's the piano gloss black plastic that sits above the door handle and also to the right of the steering wheel on the dash. When pushing it, it feels very brittle and makes a plasticy sounding creak which is the noise I think I'm hearing. This is my second car of the same model and both cars did it. Does anyone else have the same issue or know what the fix could be? I've attached some photos of the offending areas. Any advice would be great. Thanks you!

Thanks Gareth. Got some money back from dealer, using the diagnostic report as evidence. Did a dpf cleaner run through the tank, it's not come on since, but there's numerous records on the obd of egr valve. Dealer paying for 40% of valve replacement (plus cooler) as I've had only 2 events since I had it and they should have checked it before sale. I don't want to cause any more problems to engine and emissions system by ignoring it, so going ahead this Wednesday.

Thanks Gareth. Got some money back from dealer, using the diagnostic report as evidence. Did a dpf cleaner run through the tank, it's not come on since, but there's numerous records on the obd of egr valve. Dealer paying for 40% of valve replacement (plus cooler) as I've had only 2 events since I had it and they should have checked it before sale. I don't want to cause any more problems to engine and emissions system by ignoring it, so going ahead this Wednesday.

Thanks Akash, please let us know how you get on.

Do you own this Colin, and do you have a handbook for it? If so, the wheel diameter options should be given there. My feeling is there will be a choice between 17 and 18 and possibly more. If you really want to know what it left the factory with then you will need to get a copy of the build record via. the VIN. Walking into a dealer Parts section may provide you with this. Regards, Gareth.

Also the strange noise from the egr after turning off is still there...even though it's brand new.

Hello everyone, I don't know how far posting on here extends, but I hope it reaches out to someone who can help. I have a 2.0 TDI 138. That was mapped and had egr delete by previous owner 10 years ago. It currently has 126k miles. I've had codes p0103 and p0104 flash up.. I've had car for 3 years serviced it every 4k..never had dpf light come up or any other problems. Then these codes came up.. car still ran fine. When you turn the car off after a minute or so there is a noise from the egr like something is popping..which never happened before these codes.....if car is running for a good hour and up to temp the glow plug light goes off and the eml light clears too.if I go back to it and it's still warm the codes stay off... Next morning though the glow light is flashing and codes back again .and now my dpf flashes up every 4 weeks which never happened before this..... I changed the maf it made no difference. I've done the map sensor the exhaust gas pressure sensor. Done continuity test, smoke test, cleaned throttle body. Changed egr because of that noise that started... even though it's been deleted. Had dpf removed and cleaned. And banged a new battery on it too. Some one please help 😭

Hi everyone, I’m hoping someone here might be able to help me figure out the correct DPF pressure sensor for my car. There seems to be a lot of conflicting information out there. Car details: Model: Audi A5 Sportback Year: 2016 Engine code: CNHA-PVM VIN: WAUZZZ8T1GA054215 Background: The car has had a DPF issue before. In 2021, the previous owner had the DPF pressure sensor replaced and a forced regeneration done. The part installed at that time was 03L 906 051 B. Now, in 2025, I’m getting the same DPF error again (P2002 - Particulate trap bank 1 efficiency below threshold). I started looking for a replacement sensor and here’s what I found: PartsHaus.co.uk recommends: 04L 906 051 C or 04L 906 051 K Caffyns Audi (UK dealership) recommends: 03L 906 051 D The current sensor fitted: 03L 906 051 B As far as I understand, the CNHA engine is part of the EA288 platform and might not be fully compatible with the older “B” sensor. But I’m struggling to understand: Why are multiple different part numbers being recommended for the same engine? Which sensor is actually the correct one for the CNHA engine and why? Could using the wrong sensor affect DPF performance or trigger false regeneration cycles/errors (like P2002)? If anyone has dealt with this or knows how to verify definitively based on the VIN or engine code, I would really appreciate your help. Thanks in advance for your time! Marian

I’m now home and now I have the V5 I was able to check for tax, where the Autotrader say is was £20 per year and when I check another 1.4 UK car it shows £20/30 per year. now when I run this one it’s says it’s £220 per year, so this is because the euro stats and emissions are missing from the V5 🥱 ive gone back to the trader and asked them to get the V5 updated with the correct details as I don’t want to be paying that each year.

Just in... Dear Mr Masser, Thank you for contacting Ofcom recently about in-car DAB reception. I am sorry for the delay in responding to you. The relevant DAB network operators have been looking into recent issues with certain vehicle infotainment systems. Although the issue appears to be related to the behaviour of these receivers in the presence of certain valid signalling (which is compliant with the international technical standards for the DAB system), the operators are exploring options for mitigating the issue in the future. However, as the problem does not appear to be related to a technical fault or non-compliance on the part of the broadcasters, you may want to pass any further comments to the vehicle manufacturer direct. Spectrum Broadcasting Team Riverside House 2a Southwark Bridge Road London SE1 9HA www.ofcom.org.uk

For anyone whose been helping, Thanks inhave just received a photo of the log book, I’ll attached a screen shot of page 2, you can see there no euro status or emissions listed, as I’m lucky enough to live in a ULEZ zone 🥱 when I put the reg in the .gov website it comes back as not required to pay the daily charge, so to me that seems OK 🤔 what are other people’s thoughts. if you need an thanks again

Thanks Dan