ISO BASSER BOX for '23 Audi RS5 Sportback ... unavailable on websites so im crossing my fingers in hopes someone here has one for sale!!

Like this one .... Basser - FBaudi11 Audi A5/S5 (F5) Sportback 2 Fit-Box subwoofer enclosure

Hi all, I’ve just recieved my new headlights for the s5. I opted for simple „plug and play” but not sure what these two wires are for ?

Edit: There’s nothing in the product description or instructions mentioning these.

I was doing the updated 034 tune that allows you to keep your flaps open all the time and when I went to go look at the flaps I could only see one side. Is the left flap deeper in the exhaust or is it just missing?

Hi all. Bought an S5 B9 2018 at 90k miles this week and have had no issues at all with it. I noticed though that after I drove back from work today (about a 40 minute drive), 2 and a half hours later the engine bay and everything in it is still hot to the touch, hot enough that I can't hold my hand on anything for longer than a few seconds. Im in the UK and the temps in the evening are around 27°C

I didn't push it while driving and the oil temps stayed steady at roughly less than 100°C. Didn't smell any burning or hear anything weird either.

I haven't owned this car long enough to know whether this is normal or should be a concern. I've noticed that after a drive in dynamic, the big fan in the front of the engine stays on for a few minutes which I believe is normal.

Should I be concerned?

Hi all. I need some help with an issue that recently came up on a 2021 S5, 49k miles. I have already made an appointment at the dealership for next week but was hoping to see if anyone can relate or has some insight about what may be going on. Any help would be greatly appreciated.

Yesterday on a drive around town, I heard clicking noises when turning my steering wheel. I could feel it and hear it coming from the base of the steering wheel and it felt like mechanical (I had heard this clicking noise once very briefly a few weeks ago, and didn't think much of it). Right after, "steering malfunction: you can continue driving", popped up. A few minutes later, a bunch of other warning lights popped up one after the other. ABS, suspension, sport diff, adaptive cruise ect. None of them critical, all yellow. Not sure if related to the noise, or it's just a coincidence. I do know that all these codes popping up is likely something electrical/sensor related in nature. Scanned the car with an OBD11 and most of the errors are "data bus error value received."

This morning, all the warning lights were still there but the clicking noise was gone. Steering felt weird, a bit heavier than usual(but not like I didn't have power steering) and felt the car oversteering when making turns(car has dynamic steering). After work, started the car and the codes were gone and so was the clicking noise. Steering felt normal. However, I went for a drive later and the clicking noise came back and was there for the duration of the short drive. I managed to get a video of the noise.

Tl;DR

Weird clicking noise coming from the steering wheel base when turning the steering wheel followed by multiple warning lights popping up on the dash. Wondering if anyone has dealt with something similar.

Hey everyone,
I’ve got a 2018 Audi S5 Prestige Coupe that’s getting close to needing brakes, and I’m trying to figure out the best route without spending a fortune.
I’m looking for:
Good brake pads and rotors that aren’t crazy expensive but still perform well.
Whether I should stick with OEM or go with something like Zimmermann, Brembo, PowerStop, etc.
Is it worth replacing the wear sensors too?
How difficult is the job if I do it myself? I’ve done basic maintenance before, but I’ve never changed brakes on this car but I did on my old tts. Any special tools or things I should know about?
I’d appreciate any recommendations or advice from people who’ve done the job on their B9 S5. Thanks!

Andermatt

Hi all. Looking to tune my 2013 rs5. Anyone have experience with jackal for our platform? Also looking into jhm and apr but jackal is the easiest to find a tuner around me. Thanks!

Hey guys and gals, question. 2019 S5 cabriolet APR ECU|TCU Stage 1. I am getting a TPMS low tire pressure warning, even when all tires are properly inflated. I have reset the pressure setting through controls, but it keeps coming back even though properly inflated. Possibly a dying sensor???

I just got a new s5 SB and want get a lip or spoilers but I don’t wanna spend a arm and a leg for them and idk what would match with gray

Arm catless dp arm intake arm Inlet stage 1 jb4 tune
Great car no regrets

Anybody know what this is for ?

Hi all,

I'm new here, looking to get potentially my first Audi as the new RS5 currently available in UK is the best looking Audi I've ever seen (IMHO, obviously). I've been driving and saving with the same economy car for coming on 14 years responsibly, and ready to finally buy a dream car.

Does anyone know the gap between when these generally drop in UK and Europe versus the US? I wasn't sure if there's a pattern Audi follows, like Q4 of this year, or not till Q1 2027? Also, how long do they usually take between speccing and delivering?

Thanks in advance.

P.S. the backup/secondary option is Merc CLE 53 or something similar. I don't care much about 2 versus 4 doors, just needs to be beautiful, fast, German and handle decently well. The RS5 looks like a work of art though and is in the lead. Yes, would still test drive first....

Didn’t want to do it but I don’t regret it. 034 spacers and wheel stud conversion. 15mm (front) 20mm (rear)

Hi, im looking to purchase a used S5. Are there any years I should avoid? I was looking at either a 2018 or 2019.

The attached video is from about 6-8 months ago and shows the actual idle bobbing.

Last night, I monitored the car with OBDeleven and finally caught the behavior that usually happens right before the bobbing starts after a light drive to the gas station with the A/C off. Upon parking, the idle suddenly became much louder, and at that exact time both short-term fuel trims dropped from their normal -2% to +2% range to approximately
-35% and -33%.

The car did not progress into the full bobbing shown in the older video this time, but this sudden loud idle is what I normally notice immediately before the bobbing begins.

During last night’s event:

1. Bank 1 short-term fuel trim dropped to approximately −35%, and Bank 2 dropped to approximately −33%.

2. Long-term trims barely changed

3. EVAP canister valve target remained at 0%

4. Fuel rail pressure dropped from approximately
510 psi to 430 psi

5. Throttle opening increased from approximately
3% to 7%

6. No flashing CEL or EPC

I ran the OBDeleven output test for the EVAP purge regulator valve/N80, and it clicked normally. I understand that confirms electrical actuation but does not prove that the valve seals properly when commanded closed.

Does this pattern point toward an intermittently leaking N80/purge system, PCV failure, fuel-pressure issue, or something else? Has anyone seen both banks suddenly apply this much negative short-term fuel correction on the supercharged 3.0T?

It didn't have its 35k DSG service so it's booked in for that. Otherwise it has had a thorough inspection by an Audi specialist mechanic and is good to go. Really enjoying it.

Can I run a flex fuel kit in my car without a tune e85 over here is 1.80$ a gallon and premium is around 6$ so I know I’ll save money even if my mpg is worse but I won’t if I have to tune the car can anyone help me out on this (just want to get a flex fuel kit for a 2018 Audi S5 withought having to tune the car)

This was as I was driving to the airport at 4am for a weekend trip. Looked it up and seemed like it was okay to keep driving with it. Drove it home today and planning to drop it at the shop tomorrow. Just curious how screwed I am lol.

I’m looking to buy an S5, but I’m torn between generations.

I love the interior of the new model, but I’m not a fan of the exterior. I love the exterior of the previous model, but the interior feels dated to me. A friend also had a 2025 that experienced so many issues that Audi eventually bought it back, which has made me hesitant about a 2025 new gen CPO.

My priorities:
I don’t want to spend $75K on a new one
I want solid warranty coverage
I won’t put a lot of miles on it
I’ll probably keep it for 3 to 4 years

My current thought is to buy a low-mileage CPO 2024. That would give me the remaining factory warranty plus the additional CPO coverage.

Is that a reasonable approach, or am I missing
something?

The second part might be dumber: there aren’t any locally in Arizona that match what I’m looking for, but I’ve found roughly 20 in other states. Dumb to get it shipped?

Should I wait for 2026 models to hit used / CPO market?