BMW 5 Series E12 car engine ignition system

Ignition System Specifications
The ignition system is contact, battery ignition. Includes an ignition distributor, ignition coil, spark plugs and low and high voltage wires. Since model year...

Tightening torques for main threaded connections
Tightening torques of main threaded connections, kgf·m Cylinder head mounting bolts (on a cold engine): 1st dose: 3.5-4.5; 2nd dose: 6.0-6.5; 3rd dose:...

4-cylinder engine ignition distributor parts:
4-cylinder engine ignition distributor parts: 1 - breaker plate; 2 — rotor; 7 — vacuum regulator (only on model "518"); 14 — contact group.

6-cylinder engine ignition distributor parts
6-cylinder engine ignition distributor parts: 1 - breaker plate; 2 - dust shield; 3 - contact group; 4 — rotor; 6 - vacuum regulator.

Adjusting the breaker contacts
Adjustment with a set of shims Remove the distributor cap. Raise the rear of the car with a jack, engage 4th gear and turn the engine crankshaft, rotating the...

Replacing breaker contacts
Remove the distributor and take out the rotor. Disconnect wire tip 1 (see photo) and loosen screw 2. Remove the fixed and moving contacts. Install new breaker...

Installing the ignition distributor
Install the piston of the 1st cylinder (counting from the drive side of the valve timing mechanism) to the TDC position, aligning the marks on the crankshaft...

Setting the ignition timing using a stroboscope
Loosen the distributor housing fastening. Connect the strobe light according to the operating instructions. If the ignition distributor has a vacuum advance...

Setting the ignition timing using a test lamp
Set the piston of the 1st cylinder to the TDC position, aligning the marks on the crankshaft pulley and on the timing mechanism drive cover. Turn on the...

Features of removal and installation of the ignition distributor sensor
Removal Don't forget to disconnect the wire between the proximity sensor and the connector that connects the ignition distributor sensor to the switch. Make...

Removal and installation the TDC sensor
Disconnect bracket 1 (see photo) from the junction box. Disconnect connector 2. Remove the TDC sensor 3 from the bracket 4 upwards. Loosen the bracket mounting...

This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

Similar sections for other types of BMW cars:
6-cylinder engine: Ignition system BMW 3 Series E21 (1975-1983)
Power unit: Ignition system BMW 7 Series E32 (1986-1994)

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