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Ignition system

The ignition system of classical type, battery. It includes distributor, coil, spark, power supply, wire high and low voltage.

From 1978 model year to model "230E" and "280E" established contactless system of ignition TSZ adjusted ignition timing vacuum and centrifugal controls ignition gauge-distributor. The sensor is driven to rotate the intermediate shaft.

Operating procedure of cylinders

• M 115 and M 102: 1-3-4-2
• M 110 M 123: 1-5-3-6-2-4

Accumulator battery

The battery is in the front left of the engine compartment. Minus voltage of the battery is connected to the car body.

Characteristic	Value
Rated voltage,	12
Rated capacity, Ah
"200", "230"	55 (Bosch 555.30: catalog ?��?�� 0093055530, 0093155530 and 0180655530)
"280", "250"	66 (Bosch 566.18: catalog ?��?�� 0093056618, 0093156618 and 0180656618)

Ignition coil

Characteristic	Value
Brand and type	By Bosch 12V (KW 12V), references ?��?�� 0221119030, 0221122319 and 0221118 307/308
Primary resistance, Ohm	0.5-0.9 (or 2.9-3.4)
The secondary resistance, Ohm	6,0-16,0
Average power consumption at 1000 rev / min-1, W	19-20
The ignition voltage kV	14,0-16,0

The ignition coil when the resistance of the primary winding is applied only 0.5-0.9 Ohm series resistor with 0,9 ?� 0,005 ohms.

Switch

Characteristic	Value
Mark and catalog ?�� (system TSZ)	Bosch 0,227,100 114/115

Spark plug

Characteristic	Value
Brand and type	Bosch (Champion)
M 102	H7DC / H7DP (BN12Y); H8DC / H8DP (BN9Y)
M 115	W7DC / W7DP (N9Y)
M 123	W6DC / W6DP (N7Y, N7YC); W7DC / W5DP (N6Y, N6YC)
M 110	W7DC / W7DP (N9Y)
The gap between the electrodes, mm	0.8

These ignition distributor

Option mm	Engine model
	M 115,938	M 102,920, 102,939 M	M 102,980, M 102.982	M 115,954
Catalog number	0.231.170.138, 0.227.100.920	0.237.002.084, 0.237.002.059	0.237.002.085, 0.237.002.066	0.231.170.138, 0.227.100.920
Initial ignition timing (POPs) with disconnected vacuum hose, hail. (BTDC)	14.0	10-16	10-16	14.0
Setting CPP when disconnected vacuum hose, hail. (BTDC) / at crankshaft rotation, rev / min	40/4500	-	-	40/4500
The reference value UOZ
when disconnected vacuum hose, degrees .:
idling	10-18	10-16	10-16	-
at 1500 rev / min	13-19	-	-	13-19
at 3000 rev / min	30-36	-	-	30-36
when connected to a vacuum hose, degrees .:
idling	-	-	-	-
at 4500 rev / min	14-20	-	-	+ 14-20
at 3000 rev / min
Option mm	M 123,920, 123,921 M	M 110,923	M 110,984, 110,988 M
Catalog number	0.231.187.004, 0.227.100.911	0.231.390.001, 0.227.100.914	0,237,302,002
Initial ignition timing (POPs) with disconnected vacuum hose, hail. (BTDC)		50	100
Setting CPP when disconnected vacuum hose, hail. (BTDC) / at crankshaft rotation, rev / min	4032/4500	28/4500	32/3000
The reference value UOZ
when disconnected vacuum hose, degrees .:
idling	-	-	-
at 1500 rev / min	13-20	11-17	16-20
at 3000 rev / min	30-34	28	32
when connected to a vacuum hose, degrees .:
idling	from + 4.0 *	from 3.0	from 3.0
at 4500 rev / min	+ 13-17	+ 8-12	+ 8-12
at 3000 rev / min

3nak * "+" indicates that the value is given in degrees after TDC.

The tightening torques of threaded connections main engine M 102, kgs.m

Connection Type	Value
Lock nut of the adjusting screw of the thermal valve clearance	20
Cylinder head bolts
1st reception	7.0
2nd reception	tighten on 90 ?� (M12 bolts with an internal 12-sided recess turnkey)
3rd reception	2.5 (M8 bolts)
Bolt cylinder head cover	15
Bolt the bearing of the camshaft	2.1
Bolt camshaft sprocket	8.0
The key compensation exhaust camshaft drive chain	0.5
Tube chain tensioner	7.0
The enclosure chain tensioner	10
Bolts main bearing caps
M12	9.0
M11
1st reception	5.5
2nd reception	tighten on 95 ?�
M11x62 with an internal 12-sided recess turnkey
1st reception	5.5
2nd reception	tighten to 90-100 ?�
Nuts and bolts connecting rod cap
1st reception	4.0-5.0 (reusable screws), or 5.0-6.0 (new bolts)
2nd reception	tighten to 90-100 ?�
Cover bolts camshaft drive	2.3
Bolt oil pump cover	10
Tube reducing valve of the oil pump	thirty
Bolt oil sump	10
Bolt oil pump oil receiver
M8	2.3
M6	10
Oil drain plug	thirty
Bolt water pump	10
Bolt pulley to water pump	10
Bolt fan	10
Thermostat Housing	2.5
Bolt fuel pump	2.5
Bolt the ignition distributor	2.3
Spark plug	15
Suspension bracket bolts to the engine	4.0
Suspension bracket bolts on the gearbox	7.0
Suspension bracket bolts to the cross beam	20
Bolt travel stop of the power unit up to the rear suspension arm	thirty
The adjusting screw the stroke limiter of the power unit up	13.0
Bolt shock absorber	10
Bolt the front fender to the cylinder block	2.5
Bolt pulley hub to the crankshaft	30.0
Pulley bolt to the hub	10
Flywheel bolts
1st reception	3.5
2nd reception	tighten to 90-100 ?�
Bolt holder crankshaft rear oil seal	10
Drain plug cylinder	thirty
Radiator drain plug	1.5-2.0

The tightening torques of threaded connections main engines M 110, M 123, M 115, kgs.m

Connection Type	Value
Camshaft gears	8.0
The connecting rod cap nuts	4,1-5,0
Bolts main bearing caps
M 110 M 123	8.0
M 115	9.0
Bolt front flange of the crankshaft:
M 110 M 123	40,0-45,0
M 115	27,0-33,0
Flywheel bolts	3,0-4,1
Intermediate drive	50
The tray body	eleven
The housing of the oil filter
M 123	2.6
M 110	3.5
Oil filter housing	3.5-4.1
Pressure reducing valve lubrication system	4.1
Supply chain tensioner
M 123	8.9
M 110	50
A camshaft housing (110 M)	2.6
Drain plug oil pan	4.1
Valve Cover
M 123	15
M 110	0.5
Bolts cylinder head
hex head
1st reception	4.1
2nd reception	7.1
3rd reception (after 10 min exposure)	11.0
double hexagon head
1st reception	4.0
2nd reception	7.0
3rd reception (after 10 min exposure)	tighten a further 90 ?�
4th reception	tighten a further 90 ?�