1999 mercedes ml320

This topic has 2 replies, 2 voices, and was last updated 8 years, 5 months ago by jason.

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June 28, 2016 at 1:38 am #861431
jason
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a/c works sometimes and sometimes it don’t but win it don’t work u can put 12v straight to the compressor and it will work. and cools very well pressure levels are dead on the pressure switch’s are new and when u turn the switch on the light comes on regardless if the comp kicks on or not any ideas
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June 28, 2016 at 3:12 am #861437
college man
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Not sure whats in the circuit. It could be the temp sensor or the low pressure switch.
Also check the ac relay. You best bet is a ac wiring diagram to see whats in the circuit.
June 29, 2016 at 2:19 am #861511
jason
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i no it is not the relay but i will look at that wiring and see whats up thanks and i will let you know
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