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Welcome to the Audi Owners' Club - An Independent community!

Membership is completely free, and our community is built by enthusiasts, for enthusiasts. We’re a proudly independentnon-official club, so all the help and opinions you’ll find here come directly from members with real experience of Audi ownership.

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2015 Audi S5 power steering failure

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Long story short I kerbed my 2015 Audi S5 Sportback and it has totalled the rack, I have had a mechanic check it over and the fault codes relate to a failed rack. So question is my part number for the rack on my vehicle is 8K2 423 055 BY, I can find plenty of replacements online however none with the same letters at the end ‘BY’. Do the letters need to match for they replacement rack ? Thanks in advance 

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