Question about 1989 Mercedes-Benz 300-Class

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1989 mb 300ce...ac usually cold when first started in the morning but then if you turn car off ac usually not cold when tried again

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  • lance anderson Aug 01, 2013

    noticed this morning that if you restart the car , even several times BEFORE temp. gets up to normal driving range, ac will blow cold...then once at temp. no longer cold. never seems to get warmer than simple outside air temp.

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  • 7 Answers

You mave have a leak if it blows cold and then hot if that's so there's low of freon

Posted on Aug 03, 2013

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Posted on Jan 02, 2017

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SOURCE: car dies after about 20 minutes of driving,sputters slightly .

The fuel pump relay needs to be replaced. it is behind the battery and the fire wall.

Posted on Sep 20, 2009

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SOURCE: schematic for 1989 mercedes 300ce. want to replace

Relay isnt usually the issue. The Klima relay should be on the passenger side behind the battery. Also another relay is under the screwed down cover behind the fuses. Normally the comprssor will not engage due to low pressure or bad pressure switch on the drier. Could also be the speed gage integrated to the compressor. Leak of the freon is normal but f it comes out as fast as it goes or just fast then the evap in the dash is most likely bad.

Posted on Jun 24, 2010

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