Ignition and engine management system Mercedes C-Class (W203)
Ignition and engine management specifications Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold. Ignition/Gasoline Engine Control System Type HFM...
The design of the ignition system and engine management Ignition coils 4-cylinder petrol engine 1 - Front cover of the engine; 2 - Bolt; 3 - Spacer; 4 - Cover of ignition coils; 5 - Bolt M6x25, 9Nm; 6 - Ignition coil; 7 -...
Removal and installation of ignition coils 4-cylinder petrol engine Note. Removal of ignition coils of the 6-cylinder petrol engine is described in Section Checking and replacing spark plugs. Checking the...
Ignition and injection control system checks 1. The components of the control system are very reliable. Malfunctions are usually associated with unreliability or contamination of contacts. Faults in high-voltage...
Troubleshooting and Preliminary Checks Oscillograms of ignition control signals 1 - Angle of rotation of the crankshaft CKA; 2 - Cylinder number; 3 - Sensor signal L5 CKP crankshaft position; 4 - Hall sensor...
Checking and adjusting the ignition timing The ignition timing is constantly changed by the engine management system. External correction is not possible. The angle can be checked using special equipment...
Spark Plugs — Condition Detection General description The spark plug consists of a central electrode, an insulator with a housing and an electrode (ov) masses. A spark jumps between the central electrode...
Diesel engine preheating system On a cold diesel engine, when air is compressed in the cylinders, the temperature necessary for fuel self-ignition is not reached. For this reason, preheating is...
Checking diesel glow plugs If the engine is difficult to start, check the function of all glow plugs. The engine must be cold when checking (ambient temperature), battery - fully charged (voltage...
Removal and installation of glow plugs Removing 1. Turn off the ignition. 2. Remove the top engine covers, refer to Section Removal and installation of the top cover of the engine . 3. Disconnect the...