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Old 07-02-1999, 02:30 PM
Posts: n/a
My '88 300E acts very strangely sometimes. Even though I have the temp turned to max cool (at the detent)it sometimes turns on the heat. At other times cold air comes from the center of the console while heat pours out from vents near the doors. This drives me crazy. I have heard that the climate control has a lot of problems on this car and is difficult to diagnose. So the questions are:

(1) Have others had similar problems that were solvable?
(2) Are there specialists available who can diagnose and fix such problems without costing a fortune?
(3) Any recommendations for good MB mechanics either in Fremont (where I work) or Oakland (where I live).

Old 07-02-1999, 07:08 PM
Senior Member
Join Date: Apr 1999
Location: Walnut,CA,USA
Posts: 554
Your 88 300E air condition has fult code system.....a good experience thch will tell
you where is your problem.
hope this help

MB STARS Master Guild Technician,12 years MB tech
5 years independent shop owner
Old 07-02-1999, 10:04 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
There are two distinct possiblities, you could have a faulty control unit or a vacuum leak in the system somewhere. A Mercedes tech is your only option.


Old 07-03-1999, 08:45 AM
Jason Alexander
Posts: n/a
From my past experience dealing with problems like yours it sounds like the control unit. I would seek a professional diagnosis before replacement of the controller though.

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