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Hi Mike don't take any of this personally, its not aimed at people like yourself who have observed the proprieties and answered and said thank you, I can see what Gareth is driving at along with the others that try to answer a problem, 90% of the information that is given is at best thin and devoid of any real substance, the information you have given is good and you even reply to the requests for further information, Gareth and co are trying to get around the one post wonders who can't be bothered to reply TO ANY SUGGESTIONS OR REQUESTS, they have no preconceptions of what the ideal member is and I think the previous posts just reflect what has changed in the world and not singling out anyone in particular who is already a proactive member, the bottom line is if you attract answers for your problem at least have the decency to reply, otherwise it becomes an exercise in futility and I can honestly see why a lot of first time problem posts remain unanswered, more often than not we are on a hiding to nothing, I personally get a great deal of satisfaction from trying to help solve problems and especially when it all goes the posters way, it has nothing to do with personalities its just plain old helping each other. Steve.

Hi sorry mate its a full clutch four piece DMF, Driven plate, and slave cylinder best given attention soon as when the DMF starts really juddering eventually it locks over and you can't get at the bolts to release the DMF from the crank so you have to go at it with a diamond disc cutter to get it off, good news is your clutch kit will be a hell of a lot cheaper than the later models and don't be tempted by the solid flywheel conversion as that puts excess strain on the crank damper at the front end and ruins them in record time, worse case scenario the new solid flywheel is capable of breaking your crank through Harmonic Resonance at about 2800rpm thats why old diesels were limited to 2500rpm to stop this happening, with the advent of DMF and a rubber mounted crank pulley they are able to rev higher giving the manufacturers a wider rev range to tune the torque curve. Steve.

The message should stay on permanently. If the message has popped up briefly and disappeared, then my guess is that it won't be long before it fails. Get a replacement sensor now and keep it in the glove box ready to replace once it does go. You don't want to be in a position where you are too far from a dealer to get the part or you have to wait days for it to be delivered - driving too long with the error message will brick the ABS servo. Better to spend the £80-ish (assuming if you go for a OEM part) now or a few thousand £'s later!

Since this section sees little activity,I thought I would wake it up and possibly raise a topic which might cause some controversy - so apologies in advance if it offends, but hopefully it will allow views to be aired. The forum appears to be experiencing an increasing number of ‘members’ joining the forum, to seek help via. their first post, and again simply saying it as it is, then some disappear without any acknowledgement or even feedback, never to return to contribute towards helping others at some point in the future. Steve Q generously welcomes new members who join simply to advise the forum of their interest in Audi, and without wishing to appear patronising, I think Steve’s welcoming attitude is to be applauded, as is the the time taken by some of the new members who don’t immediately want anything, other than joining a like minded community. I just ask- where does this welcoming attitude become taken for granted, and folks just join to seek a free - of charge, and future exchange - consultation? I believe some forums exercise a procedure, whereby new members must make a number of posts before say, advertising, and even requesting help, based on ensuring a participation, rather than a simple ‘I’m joining to pick your brains free of charge’. Just a thought - If new members wish to post a plea for help at a stage where they haven’t posted x number of earlier participating posts, then should they join and post a plea only as paid ‘Supporting members’? Apologies if any of this offends, or is considered non-welcoming, and indeed if any of the above is not shared by others. As usual - Kind regards, Gareth.

For how cheap the part is I wouldn't put it off in my opinion. Especially when the braking system is arguably the most important system in the car.

I'd change the sensor anyway if you haven't already as the car could just be masking the problem in your case. I'd advise changing the sensor anyway. As it could lead to a big bill otherwise. Bet safe than sorry in my opinion.

And every time you touch the brakes even lightly during that time, it's draining your finite power from your ABS module. Replace it now before you have a £3k+ bill

Well Steve, your mention of decency to respond, sums it up in a couple of words. It doesn’t add any on-cost to the already free! - and welcoming- service, yet some must think that attribute is an unnecessary skill to acquire these days. I find myself thinking ‘nice car, pity you didn’t order it with the optional manners pack!’ , but there again, I’m old fashioned - well old anyway! It’s interesting to hear that you too get a well deserved satisfaction from helping others, and that Steve Q does as well. That’s great, now we have at least three guaranteed, and I sure a few others too. Keep enjoying that Steve. There must be very few forums which can benefit from such experience gained from almost galaxial mileage usage, and the necessary problem solving which goes with it - and all to try to earn a living. Many thanks again and kind regards, Gareth.

hi lads its an interesting topic youve raised and everyone has a different opinion,i personally find the forum very helpful and friendly and have gotten good advice in the past,i also see people come on here and get good advice but dont ever come back or offer a thank you,i guess theres a bit of that in all forums. on a personal level im here in eire so cant attend any shows but i definitely would if the journey was shorter and i dont offer much advice as i wouldnt have a lot of knowledge on some models,but i really do enjoy logging in and reading all the posts so keep it going and we can hope people will appreciate how valuable a tool that this forum is.greg

I do fully appreciate where you're coming from Gareth, I've been speaking to Trevor about what we can do to retain members etc. My post can be found in our moderators section. I love helping others and setting up the shows but find it deflating when we get a low turn out for the shows. It's frustrating when you see fellow Audi clubs with large turnouts and we can only get a handful. This has got worse since COVID as we used to have good numbers prior. This includes loosing some regular members due to them joining other clubs or doing other activities. I think most people don't realise the level of investment the admin/moderators team make. You with your vast knowledge and in my case I research the topics once members ask a question which takes time. Plus updating the news section & Motorsport sections as well as the how to guides. I just wish we'd be able to increase our regular members base.

Hello Mark, If this were mine, I would be wanting to spend time to thoroughly de-rust and clean, the hub to disc contact face before fitting new discs. Would main dealers spend the necessary amount of time to do a proper jog of that? Probably not at their labour charges. Kind regards, Gareth.

Hi just completed 70,000 on my Avant 2.0 tdi front discs/pads and before we go off the deep end about its not the same basically it is, your model runs a bigger disc and pads but every other spec centering etc is the same, my car is used as a taxi therefore the brakes are always being used, from what I have learned over the last eighteen years of talking to manufacturer engineers and experience here goes, do not sit at traffic lights etc. with your foot on the brakes as this causes localised hot spots between the brake pad and disc as the brake pads dual function is to act as a heat sink drawing heat from the disc and dissipating it so if its clamped in the pressure position to the disc it transfers heat back to the metal which causes deformation of the disc, regular brake fluid changes are essential as the fluid is Hydroscopic and absorbes moisture which will accumulate in the calliper piston chambers and In sufficient quantity will cause pad drag as water can't be compressed, this brings me to the next point braking systems are like owning a racing Greyhound if you don't take it for a run every so often it will become fat and slow, its the same with brakes the occasional hammering forces any moisture around the system and dissipates it from localised areas. Steve.

Now that's a stunner. It's funny, you've had it 20 years a d my family bought my A6 new 20 years ago. My dad owned it now me.

I get what you are saying but I'm not sure they have me by the short and curlys because when it came to the transmission gear oil they didn't have what I needed, they only had 1 litre and said they would have to order the rest in. His argumentative and unfriendly attitude meant that I didn't want to waste my precious time and oxygen (and fuel) going back, so I went elsewhere and had it conveniently delivered. When I called the other place after ordering to see if I could get it promptly, they were more than obliging and sent it out straight away. I think from now on if I don't need it same day then I'll use the online place as I don't like having to justify my order to them every time. Besides, the new RS6 Avant is no longer in the showroom to drool over lol

Sorry to hear of your situation. Hope you find a job soon 🙂 I'm with Steve on this one and I'd definitely fit the thermostat to see if that cures the issues.

Hi all I’m new here having come across this amazingly helpful thread after getting the brake servo and start / stop warnings this afternoon. I have a 2017 S5 with approx 37k on the clock. The car has been used regularly and the brake servo warning appeared soon after leaving home. I carried on because it said I could continue driving. Shortly afterwards, when braking, I felt the ABS engage and the start / stop warning came on. I continued to my destination and back home afterwards without incident (around 15 miles or so). All I can say at the moment is that I’m really glad I’ve found this thread. I won’t be driving the car until I’ve attempted to replace the pressure sensor. Just hoping my local Audi dealer has the part in stock, as it looks like simple job to do myself. Just want to say thanks to everyone here for sharing your experiences and helping others resolve the issue, hopefully before it becomes a major expense!

If you bought it on finance I'd be speaking to the finance company on the grounds of not fit for purpose. With all the evidence that you were not informed of potential issues prior to purchase. I doubt you'll get anywhere with the dealer as it's well past the 30 days.

If you do t use it then you could just leave it. With my A6 I've always chosen to carry out the repair. But I fully understand if you don't when you don't use the function.

I've looked at similar for my a6. Think sach do an uprated clutches as well as CG Motorsport. As I suspect you'll have a duel mass flywheel like me my plan was to upgrade this with a new or beefed up duel mass flywheel. I don't like the idea of single flywheel conversions. Let's face it, Audi don't invest all the money into design and engineering for no reason in my opinion.

The fact that you are driving it daily is increasing the risk of bricking the abs system!!! There's more risk that the abs hits another 'cycle' trigger, which it's not possible to do if you don't drive the car. If possible, use another car if you have access, public transport or hire a car while you wait for the part to be delivered.

It definitely appears so. The motor is £219 Inc VAT from Audi. They've updated the part which is indicated by the 'A' at the end of the number 4M0.820.511.A

You're welcome 🙂 not going to lie, running old Audi's is an expensive business. But in my case it's a labour of love.

Lol I have to cater for all interests when publishing the news articles. In all seriousness I have considered converting the Audi to what ever power they deem fit when they ban it. I do love my A6. Once the engine goes bank I'm going to fit a tuned engine. I'm already getting the plans drawn up and build cost already.

You're welcome 🙂 also take a look.at YouTube for some buyers guides 👍

Hi being as D5S 25w are fitted to most of the new vehicles that are not LED spec the D1S D2S D3S are becoming redundant stock so best they get rid quick, the other thing is D5S bulbs have the ballast built into the bulb, cheaper to produce. Steve.

so the cambelt and cvt seem to be the main expenses?

I do think the units and wiring are different. Depending what's wrong with it, it might be able to be repaired.

Hey Joe, Usually the servicing schedule will say which ever comes first. So it could be 2 years or X miles. I personally have always had an oil change done yearly for peace of mind.

80 miles daily?? I would say Diesel is a no brainer. My own opinion.

I think the real world figures are mud-late 30s.

samething happened me here in eire with mt 2002 tt,i got a new set for 300 euro from lithuania ,and what i didnt know is that theres a little switch in the back which changes them from lhd to rhd,very handy.theyre not genuine audi lights but they look very well.

Hi @Wakior ....welcome to the Club Where are you based in France?

Hello Mike and Steve, Well at least the post has given an opportunity to air the topic of the benefit to the club/ forum of the membership of the first-post-for-help-and-run member, and perhaps I should make it clear that I simply ask the question about paying to be become a supporter if the first post is going to be a plea for free help - I don’t suggest it should happen, and doubt whether I would support such a proposal - I simply raise the topic. Your question Mike - ‘ …..I wonder if you ( take it that’s me?) have an accurate idea of what your membership is looking for? My honest answer would be I don’t know, but what I do know is that member’s requirements are highly likely to be very much diverse - as demonstrated by Steve’s wish to have face to face contact, and your own Mike ( as the only other one to take the time to post a response) being of an opposite requirement. It remains a good question, and perhaps that question should be included in the member’s profile at the time of registering. I just wonder if an analysis was carried out of the number of new members joining and posting, say over the last year, and assess what % return to the forum and have further involvement in any capacity. This post inevitably will indicate an air of pessimism, but I just wonder if the first post, free advice, and run posters, appreciate that the forum administration cannot run as a automatic cost free facility - folks at the helm no doubt have to work hard to maintain the service we enjoy for nothing. Sometimes a simple please and thank you will be an adequate price to pay, and it would be nice if that could somehow be encouraged - via. the Forum Rules? I really hope that simply raising this topic will be seen as a constructive move, and follow-up posts in relation to advice offered will be on the increase, and first time posters will return and participate - either face to face to support Steve’s efforts, or simply to offer their experiences to others. Kind regards, Gareth.

Hi Steve Just been checking recent service history for my car. Brake fluid changed 12k ago. Filters changed with major service 5k ago. All done at Audi. They didn't check history. Rear brakes don't look too bad to me. But, I have booked it in to Audi for cam belt replacement though. Local garage quoting nearly £700, so, Audi doesn't look too bad. Tony

I have bought exactly the same one and it is in the glove box ‘just in case’ as so far not had the problem 🤞🏻. I think the price is about right as if it is a pressure sensor all that’s likely to be in there is a sprung loaded bit of material which reacts to the vacuum generated in the servo and relays an ‘on’ message to an ecu to confirm the servo is operating. If the ecu doesn’t get the signal then it compensates by operating the abs unit, which we all know know can’t take fairly continuous operation. No idea how VAG justify their prices but the one I received has ‘made in Germany’ on it, so hopefully not been anywhere near China. Having said that, the Chinese are more than capable of producing very high quality parts if they want/need to and I am pretty sure all the German manufacturers have a fair smattering of Chinese parts made to their own exacting standards. ( Not sure what standards were being followed for these sensors though, pretty minimal ones I would hazard)

Hi Pros, smoother clutch and never having to buy a flywheel again, Cons it will shred the rubber mounted crank damper in record time, possible crank whip which causes big end failure, worse case scenario the crankshaft shatters due to harmonic resonance because at about 2800 rpm the resonance will be at maximum with no DMF to smooth the torque curve it could be terminal. I have witnessed this first hand over the last eighteen years when my fellow cabbies have thought it was a good idea, anyone that tells you this is rubbish is uninformed, think about it, why would the manufacturer spend extra money on a hardened steel flywheel with an intricate float mechanism when they could cut their costs dramatically by fitting a machined one piece unit. Steve.

Ford did the same in the 70s with the pinto or similar in the US. Along with Chevrolet with the corvair in the 60s.

Make sure you have pictures of the tyres before you send them off. As well as pictures of all the numbers in the side as I'm sure they'll be a batch number or something on them.

I'd try Facebook market place or the Q5 Facebook groups 🙂

No I do t believe they will. You should be able to get the A4 b7 ones without trouble.

Can't seem to get an answer either. On the petrols there's two one at the top of rad and one at the back of the engine. If you have two one will be where I showed you on that pic and the other bear the rad would be my guess. My advice would be for you just to ring a parts department, give them your vin and they'll be able to sort you out with the parts. Otherwise you're running the risk of getting the wrong parts. Or speak to Audi. Here's the info on two sensors: "There are two temperature sensors in some vehicles, one to send information from the engine system to the control unit and another from the control unit to the dashboard. The device follows the principle of dependence of potential difference in temperature."

Hi a blowtorch or if you don't fancy that Halfords do a freeze spray that works quite well, just clean the end of the bolt with a wire brush as that allows the penetrating oil to get into the thread, my preferred combination is Plusgas and the Turbo sockets that you tap on they have a sort of spiral grip system that bites into the nut and won't let go, sometimes they destroy the nut but thats ok if you have replacements. Steve.

I agree the gear ratios are likely to be different in a 4 cylinder car. I would be very wary of buying a secondhand gearbox from outside Finland via Ebay unless it had a cast iron guarantee that included return carriage. Over here we have car breakers (aka dismantlers or recyclers,) who often sell parts on line. Is there such a system in Finland, or do cars have to be taken to official Audi recyclers? I think your best option would be to find a specialist gearbox rebuilder who will renew broken parts and fit new bearings. Such companies exist here so I daresay you will have them too in a country with a long rallying tradition.

Unfortunately most of these warranties aren't worth the paper they're written on. My advice would be to source s second hand gearbox or get a second opinion.

Hi they say to maintain optimum results use about three times a year and with regards to the other additives I have used them on my last three cabs racking up some 750,000 miles and never had to have a DPF van when the last one got to the near solid volume because the wonderful fifth injector had packed up a new injector and a forced regeneration sorted that out, my other cab before that got plugged in at 270k by my neighbour so he could check out the latest Bosch software his boss had got him, he remarked that it was all pretty good for the miles especially as I must have had a new DPF recently, WRONG it was the same one it was built with, he looked shocked and explained the car was only showing 2% soot loading and 4% ash, I would definitely give the Archoil a go. Steve.

Hi the original fault was flagged as the entry flow to the DPF was becoming blocked this is measured by the DPF pressure sensor which has one pipe connected to the intake flow and the other is connected to the out flow, both pressure measurements are sent to the ECU so it can monitor the flow of gas and particles that are being trapped by the DPF, as soon as the readings on the in flow start to drop below threshold status it starts a regeneration to burn off the soot, problem is it only burns enough to start operating again within the prescribed parameters therefore some particles are left in situ, thats where the Catalan comes in as it dissolves the remaining particles in between regeneration so the frequency for that process becomes less as the holes in the core are less blocked as when new. The ultimate DPF technology was designed by the Italians who were experimenting with Microwave technology for city diesels this gave a 98% burn rate and resulted in near minimum Nox but the project was binned when the European Union went anti diesel, and of course all the nobs in Brussels know whats best for us.

Welcome to the forum you'll find the members on here are a friendly and helpful bunch 🙂 my money would be on the engine or gearbox mounts

I understand that if the sensor was changed before you had an ABS failure you should be ok.

I heard its the 8 speed tiptronic gearbox that's the problem. Apparently the 7 speed s tronic on the smaller engines is a lot better.

Well that's mine on