ar1512p2003mrt

Remove/install ignition coils

Type ar · topic 15.12 · version 0102 · 2019-11-19

Applies to: Engine 256.9 in model 222

Where it sits

Function group 1 Engine › 15 Electrical system - engine › 15.12 DI ignition system — Series 222

EinPAS 15 Engine › 15.45 Engine management › 15.45.33 Ignition coil/distributor/ignition line/spark plug — Series 222

Also applies to engines/gearboxes: 256 9**

AR15.12-P-2003MRT

Remove/install ignition coils

18.11.2019

Engine

256.9 in model 222

Remove/install ignition coils

2

Bolts

T1/1

Cylinder 1 ignition coil

T1/2

Cylinder 2 ignition coil

T1/3

Cylinder 3 ignition coil

T1/4

Cylinder 4 ignition coil

T1/5

Cylinder 5 ignition coil

T1/6

Cylinder 6 ignition coil

P15.10-2601-11

Remove/install ignition coils

3

Spark plug connector

P15.10-2602-11

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.

AS00.00-Z-0002-01A

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.

AS00.00-Z-0035-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Remove/install

1

Switch off ignition and store transmitter key outside of transmission range (min. 2 m)

2

Remove engine air intake duct downstream of air filter

AR09.10-P-8130MRT

Installation: Do not install the upper engine cover until an engine test run has been performed.

3

Remove front noise insulation

4

Remove bleed line at oil separator and seal openings with suitable stop plugs

Installation: Replace O-rings.

Record plug

*129589009100

5

Remove rear noise insulation

6

Release and disconnect electrical connectors of ignition coils (T1/1 up to T1/6)

7

Remove screw/bolts  (2)

Screw/bolt, ignition coil to cylinder head cover

*BA15.10-P-1001-04A

8

Detach ignition coils (T1/1 up to T1/6) with spark plug connectors (3) upwards and remove

Installation:
Apply spark plug connector grease in spark plug connectors before installation to reduce the withdrawal and insertion forces
Otherwise damage will occur.

Installation: Discharge approx. Fill 1 g of spark plug connector grease into the spark plug connectors.

Spark plug connector grease

*BR00.45-Z-1102-06A

9

Check ignition coils (T1/1 up to T1/6) for external damage and replace if necessary

10

Install in the reverse order

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.

AS00.00-Z-0005-01A

11

Perform an engine test run and check engine for proper function

12

Install upper engine cover

AR01.10-P-2405MRT

Ignition coil

Number

Designation

Engine 256

BA15.10-P-1001-04A

Screw/bolt, ignition coil to cylinder head cover

Nm

8

Remove/install ignition coils

129 589 00 91 00

Record plug

Repair materials

Number

Designation

Order number

BR00.45-Z-1102-06A

Spark plug connector grease

A 002 989 80 51

Referenced documents