Engine electrical system specification Warning: Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold. Accumulator battery...
2nd generation OBD II OBD codes Power unit 1) - A diagnostic code may be displayed during self-diagnosis with the engine turned off due to the absence of a signal from the CKP sensor. If the...
Ignition and engine management system The ignition system generates sparks that ignite the intake air-fuel mixture. For this, the 12 V voltage is converted in the ignition coils to a voltage of...
Ignition and injection control system checks See also Section Troubleshooting . The components of the control system are very reliable. Malfunctions are usually associated with unreliability or...
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...
Spark plug 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 and the...
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...
Removal and installation of glow plugs Withdrawal 1. Disconnect the glow plug connector. 2. Unscrew the glow plugs using the HAZET 2530 or VW/AUDI-3320 crank wrench. Installation 1. Screw in the...
Checking 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...