BMW 3 Series E46 car engine ignition system

Engine Electrical Specifications
Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold Ignition and engine management system...

General information and security measures
The engine electrical equipment includes all components of ignition systems - as parts of the electronic digital engine control system DME / BOSCH-MOTRONIC...

Basic information on the electronic engine control system
Electronic Digital Petrol Engine Control System (DME) 1 - adsorber 2 - shut-off valve 3 - fuel tank ventilation valve 4 - fuel pressure regulator 5 - injector...

Spark plug
Regarding the replacement of spark plugs, refer to the materials of Section Checking and replacing spark plugs . Manufacturers recommend a certain type of...

Removal and installation of ignition coils / ignition cables
Models 316i, 318i Withdrawal 1. Disconnect the plug connections of the spark plugs by turning the knob -1- to the left. 2. Turn away 2 nuts of fastening of...

Ignition timing check
As part of maintenance, adjustment of the idle speed, ignition timing and CO concentration is not carried out, since these parameters are continuously...

Check, removal and installation of glow plugs
Verification conditions: The battery voltage is at least 11.5 V. The glow plug fuse, located in the fuse box behind the glove box on the right, is good. The...

Diagnostics of malfunctions of spark plugs
Coal deposits Symptoms: The presence of soot indicates an over-rich air-fuel mixture or a weak spark intensity. Causes misfiring, difficult starting and engine...