A6 94-97 AAT-AEL diesel pump

[dean warren]

hi does anyone know if the A6 TDi fuel pump off an AAT or AEL engine is the same as the Audi 100 TDi AAT engine, i know the fuel return is in a different place but thats just the top cover, I've been told they fit but won't run, but as the part number is the same except the last letter, Audi 100 is a or ax A6 is g or gx, i can't see it being different, anyone have any experience with this??
also if the wires are cut on a TDi pump how easy is a repair?

[adamss24]

Hi, the only differences between the AAT(115 Bhp) and AEL(140 Bhp) are nozzles and ECU, the pumps and rest of the engine are all the same. However, the automatic models have injector pumps fitted with a 11mm plunger as oposed to the manual ones, wich came with a 10mm plunger. As far as i know, the both pumps looks and behave in the same manner, the difference being that the auto one will flow/inject more fuel per stroke wich equals more power. There is no codding to be made to those pumps and they should be backward compatible ! Difference in letterings means revised items...These cars are Immo 1 and if you keep the instruments clocks and keys, it will start right away. Make shure you bleed the pump/injectors to minimise strain on the battery/starter. Hope this helps.

[dean warren]

thats what i thought, but am being told different, so the audi 100 tdi aat engine pump will fit an aat a6 ?