s4 b9

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    S4 B9 Underbody replacement

    Hi all, So i went through some flood water yesterday which ended in me ripping/ bending 2 panels under my car off and dragging them down the road until out of the water. I believe they are 2 underbody panels either side of the car ( not the engine bay cover at the front) Does anyone know...
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    Show me your modded Audi S4 B9's and list the mods you've got!!

    Show me your modded Audi S4 B9's and list the mods you've got!! I want some inspiration for mods on the S4 B9 chassis before i pick mine up in a week or so
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    48 volt battery

    I have just had a winter service on my 2020 S4. Issue raised that the 48 Volt battery was 50% charged and they indicated they would charge it for me (Only £50 !!). This raises a number of questions: Why is it low ? How do you measure the charge ? How do you charge it ? Is there a...
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    A4 Avant, S4 saloon exhaust?

    Hi I have a 2017 b9 avant tDi and have found a b9 s4 saloon exhaust for sale at a decent price and was wondering if this could easily be put onto my car by a garage and if it worth getting? The top one is the exhaust I want to buy and the bottom one is an s4 avant exhaust I’ve seen on this forum?
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    S4/S5 tuning EA839 engine

    Hey guys, just finally got my car mapped and going through the development work myself on my MY17 Audi S4 B9. Started to use process to build a more powerful car from the ground up that is reliable, strong and OEM drive. after running some tests on increasing the power yesterday I found With...