A/C compressor electrical wiring diagram on M119 engine

[gautrique]

Hi everyone,

Does anyone happen to have the A/C electrical wiring diagram for the M119 engine?

I’m troubleshooting an intermittent compressor issue on my 1994 E420 (W124 M119), and I’d really appreciate any help or a copy of the diagram if someone has it.

Thanks in advance!

 

[gsxr]

Link below to the M119 FSM (Factory Service Manual). Go to Group 24, Electrical Troubleshooting.

Then, scroll down and find all the links for either "Engine 119" or "Model 124.034/.036".

You may want to start with "83-6.00 - Air Conditioning (A/C), Engine 119 with LH-SFI"

Note the compressor is controlled by the BM/GM (Basic Module / General Module) N16/1 in the CAN box, which get signals from the climate control pushbutton unit in the center console.

Mercedes Benz Model 124 - M119 Maintenance Manuals

 

[AndyK]

Link below to the M119 FSM (Factory Service Manual). Go to Group 24, Electrical Troubleshooting.

Then, scroll down and find all the links for either "Engine 119" or "Model 124.034/.036".

You may want to start with "83-6.00 - Air Conditioning (A/C), Engine 119 with LH-SFI"

Note the compressor is controlled by the BM/GM (Basic Module / General Module) N16/1 in the CAN box, which get signals from the climate control pushbutton unit in the center console.

Mercedes Benz Model 124 - M119 Maintenance Manuals

Do we have A9 (Klima relay)?

 

[gerryvz]

No, there is no separate Klima relay for the W124 V-8 models. As aforementioned, the klima functionality is included in the BM/GM in the CAN box.

This is covered numerous times in other threads here on the forum.

 

[AndyK]

No, there is no separate Klima relay for the W124 V-8 models. As aforementioned, the klima functionality is included in the BM/GM in the CAN box.

This is covered numerous times in other threads here on the forum.

Thank you, mine has been replaced already. Didn’t work