Can anyone actually confirm if the 87 190D needs a auxilliary water pump?
Will the climate control system not miss it if its unplugged?
I know some of the 86 and older models don't require and its no issue.
The 87 and up - not so sure.

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87 300SDL
87 190D 2.5NA 5sp
90 300GD with 606 turbo!
08 GL320 CDI
12 ML350 Bluetec
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Past rides:
82 300SD - the one that started it all!
81 240D
87 300SDL - the first one.
92 300D 2.5 Turbo
99 E300 Turbodiesel
07 E320 Bluetec
12 S350 Bluetec