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300 E A\C MAs Control Unit
Many thanks for all who have helped me with this problem over the last couple of months. My inoperative A\C compressor operation was restored by the replacement of the MAS Control Unit. All worked as it should for 2 weeks until yesterday when the A\C quit again. The same problem is back.
The compressor fails to engage and the "check engine light" stays on. There is something that causes the failure of the MAS Unit within the wiring of the A\C. Before I replace yet another, is there a procedure to follow for diagnosis or has anyone had this type of problem and repaired it effectively?
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Walter Sawczak
1990 300 E
1993 Lincoln Mark VIII
1983 Jaguar XJ6
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08-17-2006, 02:13 PM
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