Mercedes S-Class W-220

since 1998 release

Repair and operation of the car

Mercedes W220
+ Mercedes-Benz cars of the class S (W220)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ Power supply system and release
- Engine electric equipment
   - System of ignition and engine management
      Basic elements of system of microprocessor management
      Checks of a control system of ignition and injection
      Search of malfunctions - the general information and preliminary checks
      Check and adjustment of a corner of an advancing of ignition
      Spark plugs
      Self-diagnostics of systems of electronic control of the second generation of OBD II
      The controller of interface of the personal computer to onboard system of self-diagnostics of OBD II under protocols of the SAE standards (PWM and VPW) and ISO 9141-2
      Application of an oscillograph for observation of signals in chains of control systems
      Digital tire of data of CAN
   + Systems of a charge and start
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment

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Check and adjustment of a corner of an advancing of ignition

As the corner of an advancing of ignition is constantly controlled and regulated by a control system of the engine, the nominal rate does not exist. Check and manual adjustment is impossible.

The corner can be checked by means of the special equipment attached to the diagnostic socket of a control system of the engine (address the Section Self-diagnostics of Systems of Electronic Control of the Second Generation of OBD II). Adjustment is impossible. If the corner is established incorrectly, the control system of the engine is faulty.