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Mercedes-Benz 300D Problems

Improper Temperature Output From HVAC on Mercedes-Benz 300D

Problem Description and Possible Solution

One or more blend door vacuum actuators may fail resulting in the incorrect output temperature from the HVAC system. Failed actuators will require replacement to restore proper HVAC operation.

(4 people reported this problem)

Mercedes-Benz 300D Vehicles With This Problem

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Average mileage: (–)
4 model years affected: 1990, 1991, 1992, 1993
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