mercedes-benz — Mercedes-Benz Service Manual (EN)

Special tools 001 589 76 21 001 1 1 2 4 5 8 9 3 6 6 3 0 0 Notes Test compression pressure at normal operating temperature. If the minimum compression pressure is not reached, test cylinder leaktightness (01-015). Unscrew all the spark plugs for testing. Turn crankshaft with starter and compression pressure recorder. Warning! The engines are equipped with an ignition system with variable ignition characteristics (EZL). Because of high ignition voltage, it is very dangerous to touch components of the ignition system (ignition coil, ignition cables, spark plug connector, plug-on unit) when Geftihrliche Hochspannung! Vorsicht bei Arbeiten an der Danger!

High voltage Observe caution when working on the ignition system l the engine is running, l the engine is started, l the key in the steering lock is in position 2 and the engine is cranked by hand. PIS-0241-13 01.0904 . 01012