W140 1993 - Mercedes-Benz Forum
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post #1 of 3 (permalink) Old 09-25-2017, 08:43 PM Thread Starter
BenzWorld Junior Member
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W140 1993

Hello .... Can any one help me with wiring diagram and repair manual PDF or any service manual my car 300 SE or SD
I need to develop someway for the A/C radiator fan to start when I run the A/C
It runs with temp sensor only ...
Also the A/C compressor dose not run when i.'m in cooling mode
It just runs for a second then it stop...
But if I switched to heat mode it runs and stays on and the A/C works fine and cool ( not hot!!!)
Also the car won't accelerate when the AC compressor runs I feel its very slow and if I pushed the accelerator it can't help. The car moves and accelerate slowly . like if you tied another car to its back.. Just turning off the A/C and the car runs well and accelerate fast
Please help me to find the manuals
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post #2 of 3 (permalink) Old 07-18-2019, 09:47 PM
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I have the same problem, some body knows how to fix it. Thanks
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post #3 of 3 (permalink) Old 07-21-2019, 09:04 AM
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Sounds like both of you need to pull codes to see what is going on. A "manual" won't help until you know what you are dealing with. Do you have a GOOD Mercedes shop or mechanic near you?
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