Did the motor run out of the car? I'm just not sure from your OP?

Ifit did and doesn't when you put it back into the car there has got to be a break in continuity somewhere (stating the obvious - I know).

Rear height and recline are 2 different motors - it would be odd, but not impossible that 2 motors are blown.

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1988 W126 420 SE

beware of fundamentalists!