Remove/install alternator

AR15.40-P-5032N

Remove/install alternator

14.2.12

 

Remove/install

 Danger!

Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices

No fire, sparks, open flames or smoking.

Wear acid-resistant gloves and clothing and safety glasses with side guards.

Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.

Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.

AS54.10-Z-0001-01A

1

Disconnect battery ground line

 Do not connect quiescent current retention unit!

AR54.10-P-0003I



Notes on battery

All models

AH54.10-P-0001-01A

2

Remove air pump (5)

AR14.30-P-7251L

3

Drain coolant

AR20.00-P-1142HA

4

Remove fan shroud

AR20.40-P-6800AC

5

Remove engine compartment paneling

AR61.20-P-1105M

6

Remove poly-V belt (4)

AR13.22-P-1202L

7

Unbolt nut for line circuit 30 (1) and remove line



*BA15.40-P-1001-01A

8

Release connector for line circuit 61 (2) and detach.

9

Dismount line bracket (3)

10

Dismount lower coolant hose at coolant pump (6).

11

Unscrew Bolt, alternator (7).



*BA15.40-P-1007-01A

12

Dismount coolant hose from connection (8) at alternator (G2)

13

Dismount line bracket for coolant hose (9).

 Installation: Fasten line bracket for coolant hose (9) before installing alternator at alternator.

14

Dismount bracket of transmission oil line (11)

15

Dismount bracket of oil dipstick (10) from alternator.

16

Unscrew bolts of alternator (12, 3 each)



*BA15.40-P-1007-01A

17

Remove coolant expansion reservoir

18

Remove washer fluid reservoir of windshield washer system

AR82.35-P-6000M

19

Slacken both engine mounts at front axle carrier



*BA22.10-P-1001-01L

20

Lift engine

It is sufficient to move engine to side, in order to achieve better accessibility to alternator.

21

Lift Alternator (G2) up and out

22

Replace sealing ring for flange (13)

23

Install in the reverse sequence

24

Carry out functional test

25

Render electrical system operational

 Perform basic programming (normalize windows and sliding roof, etc.).

Number

Designation

Engine 137

BA15.40-P-1001-01A

Nut, circuit B+ to generator

Nm

15

BA15.40-P-1007-01A

Bolt, cooler housing of generator to crankcase

M7

Nm

14

M8

Nm

20

Number

Designation

Engine 137.970
in model 215

BA22.10-P-1001-01L

Bolt, front engine mounts to front axle carrier

Nm

35

Number

Designation

Engine
112.922/944/972,
113.941/960,
137.970
in model 220

BA22.10-P-1001-01L

Bolt, front engine mounts to front axle carrier

Nm

35