W220 Mercedes
+ Mercedes-Benz Cars of a class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
- Automatic transmission
Problems of the block of electronic control and operating signals
Search of malfunctions - the general information
Removal and AT installation with the hydrotransformer
The AT electrohydraulic control unit (AT is established)
Dismantling and assembly of the electrohydraulic control unit
Dismantling and assembly of a plate of gear shifting
Case of transmission and hydrotransformer
Multidisk brakes В2, VZ and a blocking gear wheel at "Parking"
Dismantling and assembly of a back hollow shaft with the back coupling of a free wheeling
Removal and installation of multidisk brake В1 and oil pump
Dismantling and assembly of the oil pump
Dismantling and assembly of multidisk brake В1
Dismantling and assembly of multidisk brake В2
Dismantling and assembly of a target shaft with the central and back block of planetary gear wheels
Removal and installation of multidisk couplings К1, К2 and К3
Dismantling and assembly of coupling К1
Dismantling and assembly of a leading shaft with coupling К2 and the forward block of planetary gear wheels
Dismantling and assembly of coupling К3
The blocking mechanism at "parking"
Removal and installation of the lever of the selector of gear shifting
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Cхемы
Problems of the block of electronic control and operating signals
Entrance and target signals of the AT 722.6 control unit and tire of data exchange of CANTasks
The ETC control unit (N15/3) defines the current working parameters of a vehicle and exercises administration of consecutive gear shifting, proceeding from simplicity of switching and movement parameters.
Activation of electromagnetic valves of switching is carried out at the command of the ETC control unit (N15/3). The demanded size of pressure is calculated on the basis of entering data and necessary adjustment adjustment of a transferred torque.
To processing is exposed the following data arriving from other systems:
ME-SFI control unit (N3/10)/CDI (N3/9)
· A torque developed by the engine;
· Gear shifting;
· Emergency operation;
· Functioning темпостата;
· Activation of system of restriction of speed;
· Starter functioning;
· Kickdown mode activation (as on models 01.06.02)
· Working parameters of the engine.
Control unit of the electronic lever of switching (N15/5)
· Position of the lever;
· Sensor switch of modes of transmission (S16/5);
· Sensor switch of activation of the kickdown mode (S16/6) (till 31.05.02)
Control unit of antiprobuksovochny system (N47)
· Frequency of rotation of wheels;
· Torque of brake mechanisms;
· Fact of squeezing of a pedal of a foot brake;
· Condition of the parking brake.
EIS [EZS] control unit (N73)
· Condition of contact plugs;
· Transmission option.
Control panel (А1)
· Position of the lever of the selector / the chosen transfer.
Control unit of antiprobuksovochny system (N47)
· Transmission option;
· Information on the chosen transfer.
ME-SFI control unit (N3/10)/CDI (N3/9)
· A torque developed by the engine;
· Emergency operation;
· Activation of a mode of movement;
· Position of the lever of the R/N selector;
· Sensor switch of modes of transmission (S16/5)
· Transmission option.
