Remove/install park pawl mechanism

AR27.60-D-0950TSR

Remove/install park pawl mechanism

14.07.2019

Transmission

722.9 in model 907

Shown except code ZG1 (All-wheel drive, engageable) and except code ZG3 (Engageable all-wheel drive with transmission ratio)

1

Screw

2

Sealing ring

3

Detent plate with tapered rod

4

Screw plug

5

Bearing pin

6

Screw plug

7

Park detent

8

Spring

9

Pilot bushing

10

Transmission housing

 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

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Notes on automatic transmission

AH27.19-P-0001-01NKB



Remove

1

Remove transmission.

AR27.10-D-0005TSR

2

Fasten transmission onto assembly stand.

AR27.10-D-0600-01TS

 Assembly stand

*116589065900

 Mounting plate

*140589346300

3.1

Detach holder for rear engine mount from transmission housing (10).

Transmission 722.9 in model 907
except code ZG1 (Engageable all-wheel drive)
except code ZG3 (Engageable all-wheel drive with gear reduction)

3.2

Detach adapter housing from transmission housing (10).

Transmission 722.9 in model 907
with code ZG1 (Engageable all-wheel drive)
Transmission 722.9 in model 907
with code ZG3 (Engageable all-wheel drive with gear reduction)

4

Remove electrohydraulic controller unit.

AR27.19-D-0200TSR

5

Remove screw/bolt (1).

6

Remove intelligent servo module (ISM).

AR27.19-D-0550TS

7

Remove sealing ring (2).

 Assembly tool

*000589936300

8

Remove detent plate with tapered rod (3).

9

Remove screw plug (4).

10

Remove bearing pin (5).

11

Remove screw plug (6).

12

Push park detent (7) up to end stop against spring (8) and remove pilot bushing (9).

13

Remove park detent (7) together with spring (8).



Install

14

Position spring (8) on stud (arrow) of park detent (7).

15

Install park detent (7) together with spring (8).

16

Push park detent (7) up to end stop against spring (8) and install pilot bushing (9).

17

Screw in screw plug (6).

 Screw plug, pilot bushing of park pawl mechanism

*BA27.40-N-1009-01I

18

Install bearing pin (5).

19

Screw in screw plug (4).

 Screw plug, bearing bolt of park detent

*BA27.40-N-1010-01I

20

Install detent plate with tapered rod (3).

21

Install new sealing ring (2).

 Drift

*722589021500

22

Install ISM.

AR27.19-D-0550TS

23

Screw in screw (1).

 Bolt, detent plate to range selector lever

*BA27.40-N-1004-01I

24

Install electrohydraulic controller unit.

AR27.19-D-0200TSR

25.1

Attach holder for rear engine mount to transmission housing (10).

Transmission 722.9 in model 907
except code ZG1 (Engageable all-wheel drive)
except code ZG3 (Engageable all-wheel drive with gear reduction)

 Replace bolts.

 Bolt, bracket for rear engine mount to transmission

*BA27.40-N-1011-01I

25.2

Attach adapter housing to transmission housing (10).

Transmission 722.9 in model 907
with code ZG1 (Engageable all-wheel drive)
Transmission 722.9 in model 907
with code ZG3 (Engageable all-wheel drive with gear reduction)

 Screw/bolt, adapter housing to transmission housing

*BA27.40-N-1013-01I

26

Detach transmission from assembly stand.

 Aid of helper required.

 Assembly stand

*116589065900

 Mounting plate

*140589346300

27

Install transmission.

AR27.10-D-0005TSR

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1004-01I

Bolt, detent plate to range selector lever

Nm

8

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1009-01I

Screw plug, pilot bushing of park pawl mechanism

Nm

70

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1010-01I

Screw plug, bearing bolt of park detent

Nm

22

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1011-01I

Bolt, bracket for rear engine mount to transmission

Stage 1

Nm

10

Stage 2

°

90

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1013-01I

Screw/bolt, adapter housing to transmission housing

Stage 1

Nm

10

Stage 2

°

90