Polarity of Airomatic compressor connector

May 17, 2025 | 04:43 AM

Majshumlan

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Polarity of Airomatic compressor connector

Hi!

Im building a car and are using a MB W211 Airomatic compressor for a active swaybar. Do anyone know the poarity of the compressor motor 2-pole connector?
Cant find any good schematics

Cheers

May 17, 2025 | 07:00 AM

machild

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2006 CLS55 AMG, 2005 SLK 350 AMG

Quote:

Originally Posted by Majshumlan

Hi!

Im building a car and are using a MB W211 Airomatic compressor for a active swaybar. Do anyone know the poarity of the compressor motor 2-pole connector?
Cant find any good schematics

Cheers

If the connector has two wires and one is brown on pin 1 of the two pin connecor that is the ground and the other (maybe red with white stripe) connection on pin 2 is power.

May 17, 2025 | 07:57 AM

Majshumlan

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Quote:

Originally Posted by machild

If the connector has two wires and one is brown on pin 1 of the two pin connecor that is the ground and the other (maybe red with white stripe) connection on pin 2 is power.

thx for reply

I just have the loose compressor and no wires.
But pin 1=gnd and 2=12VDC?

May 17, 2025 | 06:15 PM

machild

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Joined: Jun 2020

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2006 CLS55 AMG, 2005 SLK 350 AMG

Quote:

Originally Posted by Majshumlan

thx for reply

I just have the loose compressor and no wires.
But pin 1=gnd and 2=12VDC?

Then you are going to have to dig into the compressor and see what they ghave for you to wore it up. I would think they would identify the power connection location. Post a picture of what you find when you dig into it.

To answer your specific question, yes, on the MB connector pin 1 is the ground and pin 2 is 12VDC.

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