I really have no idea on the '86 300E, but the blower on my '84 300D is under the passengers side kick panel in the drivers compartment. Cake to get to.

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1984 300D Turbo - 4-speed manual conversion, mid-level resto

1985 300SD Auto - Runner.


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"If you don't know where you are going, any road will get you there". Lewis Carrol