3 | Bolts |
4 | Coolant vent line |
a | Spark plug connector |
T1/1 | Cylinder 1 ignition coil |
T1/2 | Cylinder 2 ignition coil |
T1/3 | Cylinder 3 ignition coil |
T1/4 | Cylinder 4 ignition coil |
P15.12-2227-05
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. | |
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. | |
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 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
2 | Remove upper engine cover | ||
3 | Unclip coolant vent line (4) from bracket | ||
4 | Remove screws (3) | Screw/bolt, ignition coil to cylinder head cover | |
5 | Release and disconnect electrical connectors of ignition coils (T1/1, T1/2, T1/3 and T1/4) | ||
6 | Pull ignition coils (T1/1, T1/2, T1/3 and T1/4) together with spark plug connectors (a) up and off and take out | Installation: | |
Installation: Discharge approx. Fill 1 g of spark plug connector grease into the spark plug connector (a). | |||
Spark plug connector grease | |||
7 | Check ignition coils (T1/1, T1/2, T1/3 and T1/4) and spark plug connectors (a) for damage | If a problem arises | |
| |||
Replace corresponding components. | |||
8 | Install in the reverse order | ||
| Check | ||
9 | Connect diagnostic system; read out fault memory. | Only if required. | |
| Model 213 with engine 274.9 | ||
| Model 238 with engine 274.9 | ||
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. | |
10 | Conduct engine test run while checking for proper operation of the engine |
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