Nope, no manual for 'M'pump found but aware of major differences between M and MW so fingers crossed.

Back to the ADA v ALDA operation, in summary they both do the same thing which is to raise fuel to the rack post idle.

The input is different for both with ALDA using manifold pressure to increase, the ADA uses atmosphere with outside vent -

The basis of operation is to reduce emissions on tick-over for ALDA whilst increasing fuel fuel on boost (turbo), ADA on the other hand increases fuel as the air thins, i.e off skiing in the Alps.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)