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I need a detailed wiring Schematic and Diagnostic Chart for the Air Conditioning system on a 1985 190E 8 Valve engine

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Customer: I need a detailed wiring Schematic and Diagnostis Chart for the Air Conditioning system on a 1985 190E 8 Valve engine Mercedes.
The compressor clutch not operating. Clutch good, draws 3.5 amps when energized with power probe and controlled unpluged. Green with Blue tracer wire coming from push button unit shows ground and on my schematic the circuit shows that this circuit should be powered up. Should it?? The Schematics I have (I have three types) are very poor for these years.
Please Help

Answered by Marty in 5 mins 13 years ago

Marty

Bosch Certified Master Tech. Over 35 years experience.

42,694 satisfied customers

Specialities include: Audi, Australia Car, BMW, Car, Car Electronics, Classic Car, Ford, Honda, Jaguar, Mercedes, Nissan, Saab, Toyota, Transmissions, UK Car, Volvo, VW

Mercedes Mechanic: Marty

eurotec :

Hi, standby and I'll post a schematic for you.

eurotec :

Full Size Image

eurotec :

I also have some troubleshooting steps for you.

Injectors60 :

I also need the ac push button and ac switch schematics

Injectors60 :

Troubleshooting steps would be great

Injectors60 :

Are there any diagnostic charts for this system?

eurotec :

Testing Compressor Clutch Circuit

eurotec :

Full Size Image

Injectors60 :

The last Pic is a Diesel. are the diagnostic charts the same as Gas Engine

eurotec :

The diagnostic covers both gas and diesel.

eurotec :

Just ignore the diesel stuff.

Injectors60 :

Thanks, I Will

eurotec :

Let me know if you need anything else.

eurotec :

Please don't forget to click Accept so I can receive credit for my help today :-)

Mercedes Mechanic: Marty

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Marty

42,694 satisfied customers

35+ years of experience

Marty

35+ years of experience

42,694 satisfied customers

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