Remove/install alternator

AR15.40-S-5032PS

Remove/install alternator

30.11.2018

Engine

642 in model 470, 471

1

Alternator

5

Cable tie

9

Bolts

2

Poly-V-belt

6

Electrical connector

10

Ground cable

3

Belt pulley

7

Nut

11

Bracket

4

Hydraulic line

8

Positive line

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Disconnect ground line from battery.

AR54.10-S-0003P

2

Remove noise damper upstream of charge air cooler.

AR09.40-S-6930PS

3

Remove front engine compartment lining at bottom.

AR61.20-S-1105P

4

Release tension on poly-V-belt (2) and remove from belt pulley (3) of alternator (1).

AR13.22-S-3902-05PS

Poly-V-belt routing diagram

AH13.22-S-0001-01PS



Pin for locking poly-V belt tensioning device

WF58.50-S-1325-02P

5

Remove right front wheel.

AR40.10-S-1100P

6

Remove right front fender liner.

AR88.10-S-1301P

7

Release brackets of hydraulic line (4) in area of alternator (1).

 Bolt, holder for hydraulic hose/line to body

*BA46.20-N-1005-01Q

8

Place hydraulic line (4) to one side until alternator (1) is easily accessible.

9

Remove cable tie (5).

 If necessary.

10

Disconnect electrical connection (6).

 WIS Service Media
wsm://04_ 201800_44
Operation steps 10 to 13 are shown.

11

Detach cover and unscrew nut (7).

 Nut, positive line to alternator

*BA15.40-N-1001-01PS

12

Remove positive line (8) from alternator (1) and place to one side.

13

Remove screw (9) of ground line (10) and place ground line (10) to one side.

 Screw/bolt, alternator to crankcase

*BA15.40-N-1002-01PS

14

Remove remaining screws (9).

 Screw/bolt, alternator to crankcase

*BA15.40-N-1002-01PS

15

Place bracket (11) to one side.

16

Remove alternator (1) through wheel well.



Check

17

Check poly-V-belt (2) for wear and damage in visible areas.



AP13.22-S-1351P

If there is a problem,



Replace poly-V-belt (2).

AR13.22-S-1202PS

18

Check belt pulley (3) for damage.

If there is a problem,



Replace alternator (1).

19

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

20

Perform engine test run and check whether poly-V-belt (2) is running correctly.

 Alternator

Number

Designation

Engine 642 in model 470, 471

BA15.40-N-1001-01PS

Nut, positive line to alternator

Nm

16

 Alternator

Number

Designation

Engine 642 in model 470, 471

BA15.40-N-1002-01PS

Screw/bolt, alternator to crankcase

Nm

20

 Steering gear

Number

Designation

Model 470, 471

BA46.20-N-1005-01Q

Bolt, holder for hydraulic hose/line to body

Nm

4