Remove/install park pawl mechanism

AR27.60-S-0950EA

Remove/install park pawl mechanism

25.08.2020

Transmission

725.0 in model 447, 448

Modification notes

20.07.2020

Basic data reference, added

Operation step 3.1

Shown on transmission 725.0 except code ZG2 (Permanent all-wheel drive)

1

Transmission housing

83

Park detent

83f

Spring

84

Pilot bushing

84s

Screw plug

85

Bearing pin

85s

Screw plug

 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

 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 self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on threaded connections with aluminum screws/bolts

AH00.00-P-0006-01RM

Notes on automatic transmission

AH27.19-P-0001-01NKB

 

Remove/install

1

Remove automatic transmission.

Transmission 725.0 in model 447
with code ZG2 (Permanent all-wheel drive)

AR27.10-S-0005EB

Transmission 725.0 in model 447
except code ZG2 (Permanent all-wheel drive)
Transmission 725.0 in model 448

AR27.10-S-0005EA

2

Secure removed automatic transmission on assembly stand.

AR27.10-S-0600-01EA



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B



000 588 00 31 00 Assembly stand for cars

WS01.00-N-3028B

 Commercially available devices/tools
Workshop crane

 Lifting device

*724589026300

 Support fixture

*725589004000

3.1

Remove transmission mount holder from transmission housing (1).

Transmission 725.0 in model 447
except code ZG2 (Permanent all-wheel drive)
Transmission 725.0 in model 448 with engine 274

Topical note

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

AH00.00-P-0020-01A

 Transmission 725.0 in model 447 with engine 654.9Screw, transmission mount holder to transmission housing

*BA22.10-N-0005-01E

 Transmission 725.0 in model 447, 448 with engine 274Screw, transmission mount holder to transmission housing

*BA22.10-N-1011-01EE

3.2

Remove transfer case.

Transmission 725.0 in model 447 with engine 654.9
with code ZG2 (Permanent all-wheel drive)

AR28.10-S-0100EA

4

Remove electrohydraulic controller unit.

AR27.19-S-0200EA

5

Remove screw plug (85s).

 Screw plug to rear automatic transmission

*BA27.10-N-1014-06EA

6

Pull out the bearing pin (85) using a bar magnet.

 Installation: The chamfered side of the bearing pin (85) must face toward the transmission housing (1).

7

Remove screw plug (84s).

 Screw plug to rear automatic transmission

*BA27.10-N-1014-06EA

8

Press the park detent (83) as far as possible against the spring (83f) and pull out the pilot bushing (84) using a bar magnet.

9

Remove park detent (83) together with spring (83f).

 Installation: Press spring (83f) onto stud (arrow) of park detent (83) and install both components in transmission housing (1).

10

Install in the reverse order.

 Transmission mount, transmission carrier

Number

Designation

Engine 654.9 in model 447
except code ZG2 (Permanent all-wheel drive)

BA22.10-N-0005-01E

Screw, transmission mount holder to transmission housing

Stage 1

Nm

10

Stage 2

°

90

 Engine mounts, engine supports

Number

Designation

Engine 274 in model 447, 448 with transmission 725.0

BA22.10-N-1011-01EE

Screw, transmission mount holder to transmission housing

Stage 1

Nm

10

Stage 2

°

90

 Automatic transmission complete

Number

Designation

Transmission 725.0 in model 447, 448

BA27.10-N-1014-06EA

Screw plug to rear automatic transmission

M16

Nm

22

M36

Nm

70