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Automatically controlled all-wheel drive (4MATIC), function - GF28.00-P-0001AV

MODEL 204.0 with TRANSMISSION 722.960 /962 /963 /964 /965 as of Model Year 2009 /modification year 08 

MODEL 204.2 with TRANSMISSION 722.962 /965 as of Model Year 2009 /modification year 08 

MODEL 204.9 with TRANSMISSION 722.960 /962 /964 /965 

MODEL 212 with TRANSMISSION 722.960 /961 /962 

MODEL 216 with TRANSMISSION 722.961 as of Model Year 2009 /modification year 08 

MODEL 221 with TRANSMISSION 722.960 /961 /962 as of Model Year 2009 /modification year 08 

Automatically controlled all-wheel drive (4MATIC), general 

The automatically controlled all-wheel drive (4MATIC) is a permanent all-wheel drive with central differential.

Integration of the transfer case in the A/T reduces the teeth engagement and realizes an optimized lubrication concept.

The base blocking torque of 50 Nm serves traction improvement at low engine torque and serves to prevent drivetrain vibrations.

The fixed drive torque distribution is 45 % at the front axle and 55 % at the rear axle.

The drive torque is distributed via a single-speed transfer case without off-road ratio to the drive axles (drivetrain).

Further partial functions are described in separate documents:

  Automatically controlled all-wheel drive (4MATIC), location of components   GF28.00-P-0001-01AV 
  Automatically controlled all-wheel drive (4MATIC), torque distribution   GF28.00-P-0001-02AV 
  Automatically controlled all-wheel drive (4MATIC), block diagram Model 204 GF28.00-P-0001-04AV
    Model 212 GF28.00-P-0001-04AVA
    Model 216, 221 GF28.00-P-0001-04AVB 
  4MATIC transfer case, function   GF28.10-P-1000AV 
  4MATIC side output, function   GF28.10-P-1010AV 
  4MATIC front axle transmission, function   GF33.10-P-3000AV
  4MATIC transfer case oil supply, function   GF28.55-P-3010AV 
  4MATIC electronic traction system, function   GF42.35-P-1000AV
  Downhill Speed Regulation, function Model 204.9 with Off-Road Pro engineering package (code 430) GF28.19-P-3600AV
  Offroad transmission mode, function Model 204.9 with Off-Road Pro engineering package (code 430) GF28.19-P-3601AV