Remove/install ignition coils (Engine 156) - AR15.12-P-2003GZS
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 156 in MODEL 164, 251
| Remove/install | |||
|---|---|---|---|
| Risk of death caused by contact with parts conducting high voltages. | Do not come into contact with parts that are under high voltage. Persons who wear electronic implants (e.g. heart pacemakers) should never perform any work on the ignition system. | AS15.10-Z-0001-01A | |
| Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Notes on avoiding damage to electronic components due to electrostatic discharge | All models | AH54.00-P-0001-01A | |
| Notes on avoiding damage to ignition system | All models | AH15.10-P-0002-01D | |
| Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof. | Keep body parts and limbs well clear of moving parts. | AS00.00-Z-0011-01A | |
| 1 | Open engine hood and raise to vertical position | Model 164 | AR88.40-P-1000GZ |
| Model 251 | AR88.40-P-1000RT | ||
| 2 | Remove partition wall between wheelhouses | AR62.30-P-2400RT | |
| 3 | Remove air filter housing | AR09.10-P-1150GZS | |
| 4 | Detach electrical feed lines from cylinder 1 ignition coil through to cylinder 8 ignition coil (T1/1 up to T1/8) on the ignition coil | ||
| 5 | Unlock electrical connector (2) for cylinder 1 ignition coil through to cylinder 8 ignition coil (T1/1 up to T1/8) and detach | ||
| 6 | Remove bolts (3) | *BA15.10-P-1001-04B | |
| 7 | Remove cylinder 1 ignition coil to cylinder 8 ignition coils (T1/1 to T1/8) | ||
| 8 | Install in the reverse order | ||
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 9 | Carry out engine test run |
IGNITION COIL
| Number | Designation | Engine 156 | |
|---|---|---|---|
| BA15.10-P-1001-04B | Bolt, ignition coil to cylinder head cover | Nm | 8 |