Unfasten/fasten charge current line on the engine side - AR15.18-P-2000-01MCU
| Number | Designation | Engine 132.9 | |
|---|---|---|---|
| BA15.30-P-1002-01E | Cable on starter terminal 30 | Nm | 10 |
STARTER
| Number | Designation | Engine 132.9 | |
|---|---|---|---|
| BA15.40-P-1002-01G | Cable to alternator terminal B+ | Nm | 10 |
ALTERNATOR
Scheme 26
Scheme 27
- Unscrew nuts (2) and remove charge current line (1) from alternator (G2).
- Unclip retaining clip (3) for charge current line (1) at holder (4) and expose charge current line (1).
- Unclip retaining clip (5) for charge current line (1) on intake manifold (6) and expose charge current line (1).
- Unscrew nuts (7) and remove charge current line (1) from starter (M1).
- Fasten in reverse order
Safety information: Electrical system - engine - AS15.00-Z-9999ZZ
MODEL all
Risk of death caused by coming into contact with high-voltage parts although ignition is turned off. ENGINE 137 ENGINE 275 ENGINE 285 AS15.15-Z-0001-01A Risk of death caused by contact with parts conducting high voltages. ENGINE 103, 104, 111, 112, 113, 119, 120, 122, 132, 134, 135, 137, 155, 156, 157, 159, 160, 166, 266, 271, 272, 273, 275, 276, 278, 285, 613, 628, 629, 642, 646, 648, 902, 906... AS15.10-Z-0001-01A
Risk of death caused by contact with parts conducting high voltages. - AS15.10-Z-0001-01A
Do not touch parts which conduct high voltages. Persons who wear electronic implants (e.g. heart pacemakers) should never perform any work on the ignition system
Risk of death caused by high voltages in the ignition system
Electronic ignition systems operate within a hazardous power range both at the low voltage side (primary circuit) as well as on the high voltage side (secondary circuit). Contacts with such parts can result in burns, heart flutter or cardiac arrest.
Scheme 28
Safety instructions/precautions
- Persons with heart pacemakers must not perform any work on the ignition system.
- Switch ignition off before commencing any work on the ignition system.
- Do not touch or dismantle components of ignition system when working on running or rotating engine with cranking speed.
- Wear safety shoes (with rubber soles).
- Detach the crankshaft position sensor connection either at the control unit or at the position sensor.
- Do not install any electrically conducting, uninsulated adapters or installation sensors into the ignition cable.
First aid measures
- Switch off current, bring injured person to safety.
- Immediately notify an emergency physician.
- Perform mouth to mouth respiration, if necessary.
- Perform cardiopulmonary resuscitation, if necessary.
Ignition system - BA15.10-P-1000-01B
Engine 132, 160
| 15.3.05 | Spark plugs |
MODIFICATION NOTES
| Number | Designation | Engine 132.9 | Engine 160.910 | Engine 160.920 | Engine 160.921 | Engine 160.922 | ||
|---|---|---|---|---|---|---|---|---|
| BA15.10-P-1001-01B | Spark plugs | Initial torque | Nm | 18 | 28 | 23 | 23 | 23 |
| Continued torque | Nm | 18 | 20 | 23 | 23 | 23 | ||
SPARK PLUGS
| Number | Designation | Engine 160.923 | ||
|---|---|---|---|---|
| BA15.10-P-1001-01B | Spark plugs | Initial torque | Nm | 23 |
| Continued torque | Nm | 23 | ||
SPARK PLUGS
Distributor ignition (DI [EZL]) system - BA15.12-P-1000-01G
Engines 132, 160
| Number | Designation | Engine 132.9 | Engine 160.910 | Engine 160.920 | Engine 160.921 | Engine 160.922 | |
|---|---|---|---|---|---|---|---|
| BA15.12-P-1001-01G | Bolt, knock sensor to crankcase | Nm | 20 | 20 | 20 | 20 | 20 |
| BA15.12-P-1002-01G | Bolt, crankshaft position sensor to crankcase | Nm | 11 | 12 | 12 | 12 | 12 |
| BA15.12-P-1003-01G | Bolt, ignition coil module to cylinder head | Nm | 10 | 14 | 14 | 14 | 14 |
| BA15.12-P-1004-01G | Bolt, camshaft position sensor to cylinder head | Nm | 11 | ||||
ECI IGNITION SYSTEM
| Number | Designation | Engine 160.923 | |
|---|---|---|---|
| BA15.12-P-1001-01G | Bolt, knock sensor to crankcase | Nm | 20 |
| BA15.12-P-1002-01G | Bolt, crankshaft position sensor to crankcase | Nm | 12 |
| BA15.12-P-1003-01G | Bolt, ignition coil module to cylinder head | Nm | 14 |
| BA15.12-P-1004-01G | Bolt, camshaft position sensor to cylinder head | Nm | |
ECI IGNITION SYSTEM
Starter - BA15.30-P-1000-01E
Engines 132, 160
| 9.12.02 | Value changed from 30 Nm to 8 Nm | Value in series BA15.30-P-1002-01E changed for engine 160.910 |
MODIFICATION NOTES
| Number | Designation | Engine 132.9 | Engine 160.910 | Engine 160.920 | Engine 160.921 | Engine 160.922 | |
|---|---|---|---|---|---|---|---|
| BA15.30-P-1001-01E | Bolt, starter to transmission | Nm | 42 | 23 | 23 | 23 | 23 |
| BA15.30-P-1002-01E | Cable at starter terminal 30 | Nm | 10 | 8 | 8 | 8 | 8 |
STARTER
| Number | Designation | Engine 160.923 | |
|---|---|---|---|
| BA15.30-P-1001-01E | Bolt, starter to transmission | Nm | 23 |
| BA15.30-P-1002-01E | Cable at starter terminal 30 | Nm | 8 |
STARTER
Alternator - BA15.40-P-1000-01G
Engines 132, 160
| Number | Designation | Engine 132.9 | Engine 160.910 | Engine 160.920 | |||
|---|---|---|---|---|---|---|---|
| BA15.40-P-1001-01G | Cable to generator terminal D+ | Nm | 8 | 8 | |||
| BA15.40-P-1002-01G | Cable to generator terminal B+ | Nm | 10 | 8 | 8 | ||
| BA15.40-P-1003-01G | Bolt, alternator to carrier | Nm | 27.5 | 25 | |||
| BA15.40-P-1004-01G | Bolt, alternator bracket to crankcase | Nm | 27 | 25 | |||
| BA15.40-P-1005-01G | Bolt, alternator bracket to crankcase | M8 | Clearance hole | Nm | 9.5 | 9.5 | |
| M6 | Blind hole | Nm | 12 | 12 | |||
| BA15.40-P-1006-01G | Adjusting nut to alternator | Nm | 27.5 | 25 | |||
| BA15.40-P-1007-01G | Diode line to alternator | Nm | 8 | 8 | |||
| BA15.40-P-1008-01G | Bolt, alternator to timing case cover | Nm | 23 | ||||
ALTERNATOR
| Number | Designation | Engine 160.921 | Engine 160.922 | Engine 160.923 | |||
|---|---|---|---|---|---|---|---|
| BA15.40-P-1001-01G | Cable to generator terminal D+ | Nm | 8 | 8 | 8 | ||
| BA15.40-P-1002-01G | Cable to generator terminal B+ | Nm | 8 | 8 | 8 | ||
| BA15.40-P-1003-01G | Bolt, alternator to carrier | Nm | 25 | 25 | 25 | ||
| BA15.40-P-1004-01G | Bolt, alternator bracket to crankcase | Nm | 25 | 25 | 25 | ||
| BA15.40-P-1005-01G | Bolt, alternator bracket to crankcase | M8 | Clearance hole | Nm | 9.5 | 9.5 | 9.5 |
| M6 | Blind hole | Nm | 12 | 12 | 12 | ||
| BA15.40-P-1006-01G | Adjusting nut to alternator | Nm | 25 | 25 | 25 | ||
| BA15.40-P-1007-01G | Diode line to alternator | Nm | 8 | 8 | 8 | ||
| BA15.40-P-1008-01G | Bolt, alternator to timing case cover | Nm | |||||
ALTERNATOR
Temperature sensor - BA15.60-P-1000-01B
Engine 122, 132
| Number | Designation | Engine 122.9 | Engine 132.9 | |
|---|---|---|---|---|
| BA15.60-P-1001-01B | Coolant temperature sensor to coolant thermostat housing | Nm | 30 | |
| BA15.60-P-1002-01B | Coolant temperature sensor to cylinder head | Nm | 30 | |
TEMPERATURE SENSOR
On-board electrical system power supply, function - GF15.40-P-0001MCU
ENGINE 132.9 in MODEL 451.3 /4
Scheme 29
General
When the engine is running, the alternator supplies the on-board electrical system with electrical energy and charges the battery. For this purpose, the alternator generates three-phase current which is rectified.
Function
The power supply for the on-board electrical system is monitored and regulated by the ME-SFI [ME] control unit.
For circuit 15 On voltage is applied to connector D+ of the alternator.
However as long as no charging voltage is recognized by the ME-SFI [ME] control unit, it requests switching on of the charge control and alternator warning lamp via the CAN.
After starting the engine, the alternator produces the preexcitation current itself. The alternator delivers current via connector B+ to the battery and to the on-board electrical system. The alternator voltage lies slightly under the gassing voltage of the battery which achieves adequate charging and prevents damage to the battery through overcharging.
The ME-SFI [ME] control unit then switches off the request to the charge control and warning lamp.
If the on-board power supply voltage is less than 11.5 V for longer than 3 minutes, a signal is sent to the instrument cluster via the CAN to switch on the charge control and warning lamp.
Control
The alternator is regulated by the integral electronics depending on the
- RPM
- Vehicle power supply voltage
- Request from the ME-SFI [ME] control unit
- Ambient temperature
The status of the momentary operating rate of the alternator is monitored by the ME-SFI [ME] control unit. The regulating voltage in neutral is 13.5 V and for a maximum engine speed about 14.5 V.
The alternator is connected directly with the ME-SFI [ME] control unit.
The following functions are implemented
- Preexcitation
- Feedback of the alternator load
- Voltage demand by the ME-SFI [ME] control unit
On-board electrical system power supply Location of components GF15.40-P-0001-02MCU Wiring diagram for starter, alternator PE15.00-P-2000MCU Component description for the instrument cluster A1 GF54.30-P-6000MCU Component description for the alternator G2 GF15.40-P-2000MCU Component description for the ME-SFI [ME] control unit N3/10 GF07.61-P-6000MCU