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  1. S

    Anyone got a how to for the b9 s4/5 oil filter housing gasket ?

    Got a small oil leak in the valley of the s4. Think it’s coming from the bottom of the plastic oil filter housing . Probably could do with a new gasket or new housing (in case it’s cracked). Does anyone have a how to for replacing it ? Can’t seem to find a YouTube or anything that indicates...
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    Headlight adjustment after lowering

    I have been lowered at various levels and have never bothered- the only thing I did was to make sure the rake / angle of the car was tbe same as stock - which meant adjustable spring perches etc …. No problem with matrix for me but some “Audi enthusiasts” berated me for it ….ha ha
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    B9 S4 adaptive suspension renew or scrap altogether

    So I think one of my rear adaptive dampers is dead - rear drivers side! Feels undamped on bigger hits and sharp edged hits. Low speed and smaller stuff is however fine. The rear tyres aren’t showing any abnormal wear. but given the cost of Audi adaptive dampers I was wondering about replacing...
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    S4 b9 adaptive suspension refresh or scrap

    So I think one of my rear adaptive dampers is dead - rear drivers side! Feels undamped on bigger hits and sharp edged hits. Low speed and smaller stuff is however fine. The rear tyres aren’t showing any abnormal wear. but given the cost of Audi adaptive dampers I was wondering about replacing...
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    Oil Cap rubber seal warping and leaking small amounts of Oil

    It’s the pipe with the one way valves in it ! something there gets clogged or blocked and pressure builds up in the air oil separator and pushes oil past the oil cap seal. It’s an easy fix that doesn’t cost a fortune. Think mine was done at 75k and the pipe cost erm maybe 65quid ?
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    S4 avant owners - help please !

    Hi everyone, Having gone from stock s4 avant suspension to Vogtland springs which are a bit low for me, I’ve invested (kidding myself). In a set of MSS adjustable ride height springs. They’re here and I’m keen to fit them but what was the original stock height ??? Would one of you with a stock...
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    S4 seat airbags ?

    Amazing thanks. seems none of the covers I’ve found would accommodate that plastic side insert popping out ….. that’s a real shame ! Maybe have to think about having the ones I’ve got modified with a Velcro panel or something!!!! Never easy is it ! thanks again tho
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    S4 seat airbags ?

    Im trying to sort some good covers for the b9s4 seats….. I like the surf logic ones but ….. they aren’t for seats with airbags. wondering where exactly the seat airbag is exactly??? In the outside bolster ? In the outside of the seat behind the grey plastic side inserts ? Or is it in the base...
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    B9 s4 avant uprated suspension help

    So ever since I had the S4 I’ve been disappointed and dissatisfied with the suspension set up (I have adaptive). Too soft, too much body roll even in dynamic. so 6 months ago I swapped for Vogtland springs - because they offered uprated spring rates and a marginal 15mm drop. Now….. lowering...
  10. S

    Water into avant rear passenger fuse compartment

    So everyone, thanks for your help and your ideas ! It’s been a mission and a bit of a nightmare! I’ve siliconed everywhere inspected everything and eventually found the answer! The water was making its way into that compartment from one of the upper bumper bar bolt holes ? Seems ridiculous that...
  11. S

    Water into avant rear passenger fuse compartment

    Anyone else has problems with water ingress into the compartment to the left of the boot where all the fuses and relays are housed. Checked all grommets, sealed all light unit holes etc - water seems to be tracking between panels on rear valence behind bumper but I can’t be sure ! Has anyone...
  12. S

    S4 checking brake run-out

    So having had some brake dramas recently I’ve had brakes on and off the car several times and potentially I’ve not reseated one of the disks 100% square and on braking I’m getting a bit of a pulsating sensation through pedal and a bit through steering! I’m hoping it’s a disk not seated perfectly...
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    'Brakes Fault: Safely stop vehicle' warning

    Right - Jigs - Im fascinated by this, I have a similar or same issue materialise yesterday. Had a brake servo warning flash up twice but then not again. Braking fine at the moment but pedal does seem to feel a bit different, kinda softer than normal but not terrible. So are you saying that the...
  14. S

    S4 oil separation module

    I’ll check the part number when I get home from work! Yeah you get everything marked green with the part. The red cap bit you circled …. So my stock pipework on the car has the cap on it! The replacement pipe assembly didn’t have the cap so I went to swap my original one onto the new pipe work...
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    S4 oil separation module

    Yeah I fixed it - replaced the breather pipe the one with the valve in it. Cost about 60quid and fixed the problem! My car is a 2017 car and the pipe was brittle !!! I wouldn’t think about cleaning it…. Just replace! The oil separator module isn’t very sophisticated- I swapped out the gasket...
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    S4 oil separation module

    Does anyone have any experience with the S4 oil separator module? Changing the air filter on the weekend I spotted a little oil in the semi rigid tube going to the filter. It’s not much but it’s got me wondering if the oil separator is functioning properly. Before I whip it off I’m guessing...
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    New tyres

    Don’t you rotate your wheels? I always seem to be in a position in the spring where all 4 need doing ! i never got to the bottom with Audi if mixing part worn and new tyres causes problems for Diffs but having come from subaru land where that’s a “ thing” I always rotate tyres and replace all...
  18. S

    Audi S4 B9 (2017) Stage 2 tune

    The APR stage 1 power wi be dependent on fuel - Dingah and I both went with 98ron - which APR claims is good for 440
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    Thinking of an S4 Avant

    Not standard ! But I wish they were! Retrofit is expensive. Res delete on standard exhaust creates a more raspy noise with 70mph drone - not my cup of tea.
  20. S

    Thinking of an S4 Avant

    Stage 1 APR tune makes a huge difference to performance and negligible impact on economy- in fact just regular cruising sees a slight increase in economy for me! Mixed driving returns anywhere from 30 mpg to 36 and an economical run down the motorway 36-41mpg ! Luckily my run home from work each...