P15.12-2223-09
Shown on engine 157 |
2 | Air cleaner housing | T1/1 | Cylinder 1 ignition coil | T1/5 | Cylinder 5 ignition coil | ||
3 | Electrical connectors | T1/2 | Cylinder 2 ignition coil | T1/6 | Cylinder 6 ignition coil | ||
4 | Engine air intake ducts | T1/3 | Cylinder 3 ignition coil | T1/7 | Cylinder 7 ignition coil | ||
5 | Screw | T1/4 | Cylinder 4 ignition coil | T1/8 | Cylinder 8 ignition coil | ||
a | Spark plug connector |
Warning | Risk of injury due to fan starting unexpectedly | Do not reach into the rotation or hazard area of the fan. Wear closed and close-fitting work clothes. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Notes on avoiding damage to ignition system | ||
| Remove/install | ||
1 | Open hood | ||
2 | Loosen and remove pressure reservoir from fuel injection system control unit bracket | Engine 276 in model 221 | |
3.1 | Remove both engine air intake ducts (4) upstream of air filter and air filter housing (2) | Engine 278 in model 216 | |
3.2 | Remove both air filter housings (2) | Engine 276 in model 221 | |
4 | Remove insulation on rail | Engine 278 in model 216 | |
5 | Unlock and disconnect electrical plug connections (3) from ignition coils (T1/1, T1/2, T1/3, T1/4, T1/5, T1/6, T1/7 and T1/8) | ||
6 | Remove screws/bolts (5) | Screw/bolt, ignition coil to cylinder head cover | |
7 | Pull off and remove ignition coils (T1/1, T1/2, T1/3, T1/4, T1/5, T1/6, T1/7 and T1/8) including spark plug connectors (a) | Installation: | |
Installation: Discharge approx. Fill 1 g of spark plug connector grease into the spark plug connector (a). | |||
Spark plug connector grease | |||
8 | Check ignition coils (T1/1, T1/2, T1/3, T1/4, T1/5, T1/6, T1/7, T1/8) for damage | If a problem arises | |
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Replace corresponding ignition coil (T1/1, T1/2, T1/3, T1/4, T1/5, T1/6, T1/7, T1/8). | |||
9 | Check spark plug connector (a) for damage | If a problem arises | |
| |||
Replace corresponding spark plug connector (a). | |||
10 | Install in the reverse order | ||
| Check | ||
11 | Connect diagnostic system; read out fault memory. | Only if required. | |
| |||
Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | |
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
12 | Conduct engine test run while checking for proper operation of the engine |
Referenced documents
- ad0000p200004a Connect STAR DIAGNOSIS and read out fault memory
- ad0000p200004a
- ah0000p500001a Notes on avoiding damage through contamination and foreign objects
- ah1510p000201v Notes on avoiding damage to ignition system
- ah5400p000101a Information on preventing damage to electronic components due to electrostatic discharge
- ar0708p7008mma Remove/install injection system control unit
- ar0941p8620mmb Remove/install charge air ducts
- as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)
- as2040z000101a Risk of injury due to fan starting unexpectedly
- as4900z000101a Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust.