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Been a while, few updates and couple of issues. After reading up and lots of recommendations , decided on 10L of fuchs Pro S, new filter and crush washer. Very disappointed, and after speaking to Tim at opie, i was the 1st to have this issue(or so i thought). Basically the cold start chain rattle was worse, little louder, maybe 0.5s longer, but either way enough to notice!. I since found out i am not the only one , just cant find it on forums/threads. Ester content or not, i cant recommend the pro S from my experience. [img]https://i.imgur.com/GJPhmE7l.jpg[/img] So recently changed to millers nano [img]https://i.imgur.com/rfyrRPtl.jpg[/img] Already quieter and back under a second, much happier. I admit running there is not much difference or i cant tell, its the start up thats noticeable. I had my econ light come on 2 weeks back........here we go! So some reading up, seemed unlikely to be compressor(do for me!). Much more common for a leak or high pressure switch. Now knowing i had it recently filled/serviced without issue(only low on gas at around 200g) i had a feeling it was the sensor. It was! [img]https://i.imgur.com/Nbv1GJ9l.jpg[/img] Can see the corrosion , replaced and re-gassed, perfect. Has a 1 way valve inside, so when removed you only loose smallest amount of gas [img]https://i.imgur.com/2xIvfRwl.jpg[/img] Now prior to changing the sensor, i noticed the alternator belt very tired. Looked frayed right along centre, right around belt. Well it turned out it was split in 2! So actually 2 belts, new belt went on. Defo worth checking if not, seems to be a forgotten part being tucked down bellow. Naturally the tensioner was seized but easy enough to free off. No need to remove bumper, just service position. Noticed the rear wash was not working(going back 2 months). Took nozzle off and tested, nice jet out back(could be fun!). Tried to clean out nozzle, WD etc but had no compressed air. So after an hour i gave up and ordered new for £8 [img]https://i.imgur.com/FpNCWRAl.jpg[/img] [img]https://i.imgur.com/vNmd32gl.jpg[/img] Was a pain to get both nozzles adjusted right, lots of back and forth to get accurate. Fresh 12m MOT on it last Friday as well, inspector seemed happy enough and loved it.

Little update, last corner cover delivered. So engine area nice and tidy Also decided on a visual deterrent, love or hate them. Its obviously alarmed and immobilised, but nothing too obvious . Size small is the one, with the b6 being quite a small wheel.

Another little job crossed off my OCD list. Parking sensor switch.......worn pretty bad, all others are fine. So obviously draws my attention. No more, popped stereo out with tools, pry'd the top part of dash up a tad with plastic dash pry. Then could get in the head unit and push sensor out. Now the switch is not identical, very slight difference on top, so rather than file off, just ended up swapping the switch cover(pops off easy enough) Tools used Old switch New in place Just await my top left engine cover(near air filter). Then should be done for a while i hope. Oh had intermittent temp gauge, get to 90 then drop like a stone. Stay there for miles, than fly up to 90! Knew sensor as too quick for a stat or coolant issue(level always spot on). So b8stard of a job, air intake off, pipes, long screw drivers and patience. Temp gauge spot on, not bad for £10 febi one.

Cheers steve. New boots day! Fronts that were on, are both decent and 6mm. Both goodyear ,but one an F1, other an excellence. So different tread patter, both rears are F1 and near 3mm in tread. So easiest way is 4 new. Decided on continental premium contact 6, reviews seem to show the tread lasts better than the sport. Oh well, guess i will find out in time😀

Got it up and ramps, for me no easier, cant even see to get close. Above impossible to see without taking those stupid hose clips off. So nipped out, new can of elec clean and the hose clip pliers. In the time i drove back and got up on ramps, i though best leave it incase any clip or pipe gives. Then i am stuck. The best i could i aimed copious amounts of elec clean. The gauge actually worked 90% of the time i was out........ So next week it is, not worth being totally stranded. Ordered the sensor as a back up, just in case(as they do order on the day) they cant get one straight away. Bought a febi bilstein OE one for £12. Audi OE 059919501A

Thanks again Gareth, well it is booked in for next Thursday...........feels forever away. I do have ramps which i used last week for the oil change. I have a look under the engine cover and straight away those pesky clips they use. i dont have a tool(about to order for future uses). Also there are quite a few pipes near and around the air inlet pipe at back. You know what happens next........something breaks! Yes new switch with going to the trouble, after all , if i can unplug it, for the sake of £20 or so, might as well change it. Worst case scenario, its ruled out if issue continues. Reading up, it does seem a common issue, not with just the s4. I bet it was so easy to fit when the engine was out🙄 😂 Thanks again Gareth, fingers crossed then, back end of next week i will update the thread, good, bad and/or ugly. That may help others in the future.👍

Cheers Gareth for reply. Thinking that myself. Drove back from work, temp rose to 90 per normal within a few miles. All good yay !!!! Nope, dropped to minimum instant, blink of an eye. Stayed there all the way home. Stopped off for a couple of mins near home, then ign on, temp gauge going up, started and as if nothing happened! Stayed at 90 for the last mile. Elec clean! What is easiest way, I can’t even see the little bugger down the back. Any easy way to get it unplugged to spray copious amounts of elec cleaner in there? Any tips would be welcome, kind regards 🙂

Hi all, some advice off the experts please. Drove to work and temp gauge never moved, stayed at minimum. At one point it jumped 1/2 way to 90oC then back to minimum. So everything is pointing me to the temp sensor. From what I could find it’s at the back of the engine in between the heads. A green sensor with plug. Does this sound right to you guys . Any info or thoughts would be greatly appreciated. Would rather do myself than risk taking it to a garage . Cheers

Start up

Couple of vids that do no justice, damn iphone's mic's. Either way it gives maybe 5% of the sound😀 Short vid Little longer vid It pretty much turned everyones head around , probably thinking what a tw@😀 But i dont care ............ Cheers

Sorry wrong thread

Cheers steve, made up with it. Even the other 1/2 loves it! She even asked to come out to listen before when taking my lad to his MMA gym. Certainly a lot more of a growl/snarl now. Lots of people looking round 50+ metres ahead😀 Did i say im like a big kid.............. New boots to go😄

At last . the miltek is on, no resonators and GT100 tips. Love the sound, sounds awesome. Maybe an hour to fit, the guy had a little OCD which i like, lining the tail caps up and getting perfect centre. Old zaust came off super easy, as Audi/bmw use double sleeves. However my plans to keep or even sell on did not go to plan. The centre hanger was almost rusted off, the pipes from cat to centre, almost rusted through. That exhaust would have unlikely made it through winter, but it is 16yrs old!. Happy the car is under sealed, actually in good nick under which makes me happy. Not always easy to check, but as it spent a lot of its life garaged, it shows. Anyway pics and a little vid that does no justice. Drone wise is not bad at all, had to drive back 12m which most is motorway. Little to no drone, foot down and growls!. Had a big grin like a kid driving home, thats when you know its a good decision😅 Old Hanger almost off(loose) and pipes rotted through Zaust less New on with GT100 tips Little vid that does no justice(dont think will play ;-( )

Little clean, having a little OCD my cars usually look clean all the time, washing a couple of times a week is not unheard of! Been using autoglyms wash and wax. Pretty easy as i hate anything to do with waxing etc. Wash with their shampoo, then whilst wet a couple of sprays of wax per panel. Panel at a time, microfibre x2, one to spread around panel, other to buff up. Works well and can do car in 20 mins total.......that makes a difference for me. £20 on amazon, comes with sponge and 2x fibre cloths I also use their leather care cream which works well .

Chain is a tough one and for now just enjoy. Its well under 1 second of cold start noise which according to Audi is normal(engine pressure required to feed tensioners with oil, which drains off over time when engine off). Regular oil changes are key, so every 3k that will happen. Yes engine out, new tensioners(chains should be fine) etc will cost a pretty penny. But due to the design, it may start again within 20k or ???. There is no proper solution, so its a trait and i knew this prior to getting. I have read up almost endlessly to learn/build up a picture for myself. Going back to 2008, a 2004 with 30k on rattles for a second on start up!. So 16yrs down the line(mine) , maybe they have been done, maybe under warranty and had new tensioners 50k ago, who actually knows . I could contact Audi i guess, but then they might not have done the work(if its been done). Trouble is, the odds are definitely in favour of it returning due to the design. I will live with it for now, mainly because i know i could spend £3k+ for it to sound the same within a couple of years. A friend who uses his mates garage (has rs4 with exact same noise to) are my back up to do the work if /when required. He said nothing to worry about, they all do it, the latter seems pretty true. He has owned a few s4's(avant and cab) along with the rs4 b7 for the last few years. In fact thinking back, an S or RS has been in his life for the last 10-15yrs. Have a great weekend, actually looking forward to going for a drive later........did i say i feel 20 again😀 Love it!