LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 2008 >> GL320 AWD >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Fuel, Ignition, Engine Control - Basic Knowledge - 1 Of 2 -- 164 Chassis >> Basic Knowledge >> CDI AC compressor shutoff, function - GF07.16-P-3010P
April 5, 2026: LEMON Manuals is launched! Read the announcement.

CDI AC compressor shutoff, function - GF07.16-P-3010P

ENGINE 642 in MODEL 164.1 /8, 203.0 /2, 209.3 /4, 211.0 /2 /6, 219.3, 251.0 /1 

ENGINE 642 in MODEL 463 

Function requirements for the function refrigeration compressor shut-off is that the air conditioning is operating. The CDI control unit (N3/9) receives the message 'COMP_ON' (refrigerant compressor (A9) activated) via the Control Area Network Bus Class C (engine compartment) (CAN-C) from the EIS control unit (N73).

For the following conditions the CDI control unit interrupts actuation of the refrigerant compressor:

If the conditions for the function refrigerant compressor shut-off are no longer fulfilled then the refrigerant compressor is actuated again by the CDI control unit.

  Component description for the crankshaft Hall sensor B70 GF07.04-P-6220P 
  Component description for the CDI control unit Model 203, 209
N3/9
GF07.16-P-6000P
    Model 211, 219
N3/9
GF07.16-P-6000T
    Model 164, 463
N3/9
GF07.16-P-6000GZ
    Model 251
N3/9
GF07.16-P-6000RT
  Component description for the accelerator pedal sensor Model 203, 209, 211, 219
B37
GF30.20-P-2010P
    Model 164, 463
B37
GF30.20-P-2010GZ
    Model 251
B37
GF30.20-P-2010RT