The 1999 300M is not producing cool air today... suggestions and ideas most appreciated. thanks in advance. Ralph Griffith
300M - Air Conditioner
Mar 25, 2007
7 Replies
The evaporator went out twice in my 2000 300M. Seems to be a common problem. The dash will have to come out for repair.
Was wondering if this is better repaired by a dealer or by a ac shop?
That is very much dependent on the integrity and competence of the candidate dealer or a.c. shop. If good - either one. If bad - neither one.
Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x')
Try this:
- Start the engine but do not move the vehicle.
- Set the Temp control to 75 degrees.
- Press and hold the Floor, Mix and Defrost buttons at the same time.
- The control head will begin to blink and enter a diagnostic mode.
Once the unit has gone through its diagnostics it will either return to its normal mode (with all air doors calibrated) or it will return one or more of 16 different error codes between 23 and 51.
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