Remove/install starter

AR15.30-S-7100PS

Remove/install starter

16.07.2019

Engine

642 in model 470, 471

Modification notes

15.04.2019

Method extended

Operation step 7

15.04.2019

Workshop appliance 000 588 11 62 00 major assembly mount, added.

Operation step 12

15.07.2019

Reference link changed

Operation step 3

1

Starter

2

Screw

1

Starter

5

Nut

8

Nut

3

Nut

6

Electrical line, terminal 50

9

Heat shield upper section

4

Electrical line, terminal 30

7

Bracket

10

Heat shield lower section

 Danger

Risk of accident caused by vehicle starting off on its own when jacked up. Risk of injury caused by rotating parts when working on running engine or drive train.

Ensure that jack stands are in a safe condition. An authorized person must occupy the driver's seat. Wear closed and close-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0008-01A

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A

 Caution

Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil

Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.

AS00.40-Z-0001-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01P

 

Remove/install

1

Remove ground line of battery.

AR54.10-S-0003P

2

Remove front and lower center engine compartment lining.

AR61.20-S-1105P

3

Secure vehicle on vehicle lift.

AR00.60-S-0100-01P

Topical note

Information on influencing load ratios when removing major assemblies

AH00.60-P-0001-01A

 Commercially available devices/tools
Tensioning strap

4

Remove diesel particulate filter.

AR49.20-S-1200PS

5

Remove oil lines from the torque converter housing and from the oil pan.

AR27.55-S-0600PS

6

Remove heat shield upper part (9) and heat shield lower part (10) from the starter (1).

 For this purpose, remove nut (8).

 Nut, upper section of heat shield to lower section of heat shield

*BA15.30-N-1009-01G

7

Remove cover from the nut (3).

8

Remove terminal 30 (4) electric line.

 For this purpose, remove nut (3).

 Nut, connection for circuit 30

*BA15.30-N-1002-01G

9

Remove terminal 50 (6) electric line.

 For this purpose, remove nut (5).

 Nut, circuit 50 connection

*BA15.30-N-1003-01G

10

Remove screws (2).

 Bolt, automatic transmission to engine

*BA27.40-N-1005-01I

11

Remove brackets (7) from oil pan.

12

Lift engine.



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B


Carefully lift engine from below by approx. 3 cm.
Otherwise, detachable parts on the engine may be damaged.

13

Remove starter (1) downward.



Check

14

Check pinion of starter (1) for wear and damage.

If starter (1) is reused.

If there is a problem,



Replace starter (1).

15

Check starter ring gear of the drive plate for wear and damage.

Crank engine

AR01.00-S-0100PS

 To do this, rotate crankshaft in steps in the direction of engine rotation.

If there is a problem,



replace die drive plate.

AR03.30-S-8003PS

16

Install in the reverse order.



Check

 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

17

Perform engine test run.

 Starter

Number

Designation

Engine 642

BA15.30-N-1002-01G

Nut, connection for circuit 30

Nm

16

 Starter

Number

Designation

Engine 642

BA15.30-N-1003-01G

Nut, circuit 50 connection

Nm

7

 Starter

Number

Designation

Engine 642

BA15.30-N-1009-01G

Nut, upper section of heat shield to lower section of heat shield

Nm

8

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1005-01I

Bolt, automatic transmission to engine

M1040

Nm

38

M1090

Nm

38