Air conditioning not working

Tiny
SQMPYK BEBYTZA
  • MEMBER
  • 2002 MERCEDES BENZ 270ML
  • 2.7L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
I have put the gas and still not working.
Tuesday, June 20th, 2017 AT 10:14 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

I would start by checking the system fuses and relays. Here are some guides and a wiring diagram (below) of the system so you can do some testing to fix the problem.

Check the pink wiring going to the compressor to see if it has power.

This will determine if the compressor is bad or not.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

and

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

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Friday, June 23rd, 2017 AT 11:38 AM

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