mine was rough on starting from cold until i replaced the Lambda probe. Also are you sure non of the small vac / pressure hoses at back of inlet have perished /crushed?
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Coupe quattro 1986:-~450bhp + loooong list of mods!
Audi A7 Bi-TDI SLine Black edition 2015 mapped to produce 600lb/ft torque!
Audi S4 4.2 V8 cabriolet 2004:-
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