General notes
- Switch off the ignition before connecting or disconnecting the battery, otherwise the engine control module may be damaged.
- A voltage of at least 12.7 V is necessary for satisfactory functioning of the electrical components.
- During some of the tests, a malfunction may be recognized and stored by the control module. At the end of all tests and repairs, the fault memory should be checked and, erased.
- If the engine starts and then stops after malfunction search, repair or tests on components, because the immobilizer is blocking the engine control module. The fault memory must then be checked and, if necessary, the control module adapted.
To prevent injuries to persons and/or damage to the fuel injection and ignition system, observe the following
- Do not touch or disconnect ignition wiring when the engine is running or at starting speed.
- The ignition must be switched off before connecting or disconnecting ignition system wiring. This also applies to high-voltage cables and measuring instrument leads.
- During some of the tests, a malfunction may be recognized and stored by the control module. At the end of all tests and repairs, the fault memory should be checked and, erased.
- Always switch off the ignition before washing the engine.
| Engine code | BHE (3.2 Liter/4V/184 kW engine) | ||
|---|---|---|---|
| Idling speed Not adjustable - controlled by idling speed stabilization | 650 to 750 rpm | ||
| Engine speed limitation by Deactivation of injectors | Approx. 6500 rpm | ||
| Ignition timing determined by control module. Ignition timing cannot be adjusted. | |||
| Ignition system | Individual coil system with 6 ignition coils (output stages integrated) connected directly to spark plugs via spark plug connectors | ||
| Spark plugs | Tightening torque 30 Nm | ||
| Firing order | 1-5-3-6-4-2 |
Scheme 73
1 - Ignition coils with output stages
- Cylinder 1 ignition coil 1 with output stage -N70
- Cylinder 2 ignition coil 2 with output stage -N127
- Cylinder 3 ignition coil 3 with output stage -N291
- Cylinder 4 ignition coil 4 with output stage -N292
- Cylinder 5 ignition coil 5 with output stage -N323
- Cylinder 6 ignition coil 6 with output stage -N324
2 - 4-pin connector
- For ignition coils with output stage
3 - Bracket
- For connector for Knock Sensor 1 -G61
4 - Bolt, 10 Nm
5 - 3-pin connector
- Black
- With gold-plated contacts
6 - Knock Sensor (KS) 1 -G61
7 - Bolt, 20 Nm
- To ensure correct operation of knock sensor, it is important to adhere to specified tightening torque
8 - Camshaft adjuster
- Exhaust side
- With sender wheel for Camshaft Position sensor 2 -G163
- After reinstalling, adjust valve timing
Refer to 13 ENGINE - CRANKSHAFT, CYLINDER BLOCK
9 - Cover (upper) for camshaft timing chain
- Removing and installing
Refer to 13 ENGINE - CRANKSHAFT, CYLINDER BLOCK
10 - Seal
- Replace
11 - Camshaft Position (CMP) sensor -G163
- For exhaust camshaft
12 - Bolt, 10 Nm
13 - 3-pin connector
- Black
- With gold-plated contacts
- Mark before removing
14 - Camshaft Position (CMP) sensor -G40
- For intake camshaft
15 - Knock Sensor (KS) 2 -G66
16 - 2-pin connector
- Black
- With gold-plated contacts
17 - Camshaft adjuster
- Intake side
- With sender wheel for Camshaft Position sensor -G40
- After reinstalling, adjust valve timing
Refer to 13 ENGINE - CRANKSHAFT, CYLINDER BLOCK
18 - Spark plug
- Removing and installing. Refer to «Spark plugs, removing and installing»(ref-276275-S28593971062008010300000)
- Tighten to 30 Nm
19 - Valve timing housing
- For variable valve timing
- Removing and installing
Refer to 13 ENGINE - CRANKSHAFT, CYLINDER BLOCK