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Old 10-26-2024, 11:41 AM
ah-kay ah-kay is online now
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Join Date: Mar 2009
Location: San Diego
Posts: 3,600
Do you know how to calibrate ( check ) you meter for continuity? If you touch the chassis, does it bleep? If it does then the switches are open circuit.

Pressure switch seldom go bad. So it is likely freon is low or almost empty. Get professional help and tell him to check for pressure and leak.

BTW: when you wrote you jump the leads, what do you mean? You jumped the compressor to make it run or you jump the low pressure switch? When you jumped the 'leads', how long? Normally jumping the leads, compressor leads, is okay if you are confident freon is ok. If you jump the low pressure switch then it is for a short time only or else the compressor could be damaged.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
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1 x 87 300TDT wagon
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1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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