Remove/install automatic transmission oil pan

AR27.10-D-7031TSR

Remove/install automatic transmission oil pan

06.03.2020

Transmission

722.9 in model 907

1

Transmission housing

3

Overflow pipe

5

Seal

2

Bolts

4

Oil pan

6

Sprag

3

Overflow pipe

5

Seal

8

Solenoids

 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

Notes on automatic transmission

AH27.19-P-0001-01NKB



Remove

1

Raise vehicle.

AR00.60-D-1000-04TS

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01TS

2

Remove lower engine compartment paneling.

If installed.

AR61.20-D-1105TS

3

Remove underbody paneling.

If installed.

AR61.30-D-1001TS

4

Thoroughly clean oil pan (4) and surrounding area.


Cleanliness must be observed at all times when working on the automatic transmission.
Otherwise, even the smallest foreign particle in the hydraulic components of the automatic transmission can lead to malfunctions or a total failure of the automatic transmission.

 Use lint-free cleaning cloths when cleaning. Chamois leathers are the most suitable.

Assembly cleaner

*BR00.45-Z-1028-04A

5

Drain fluid from transmission.

AR27.00-D-0200-01TS


After releasing the overflow pipe (7), the oil pan (1) must always be removed and the overflow pipe (7) mounted back onto the oil pan (1) again.
Otherwise the transmission may be damaged.

 Drain transmission oil from oil pan (4) only. Collect escaping transmission oil to determine quantity of transmission oil.

 Commercially available devices/tools
Collecting pan

 Drift

*722589031500

6

Remove bolts (2) and remove sprag (6) as well as oil pan (4).

7

Remove seal (5).

8

Remove magnets (8) from oil pan (4).

 Mark positions of magnets (8).

9

Remove overflow pipe (3) from oil pan (4).



Clean

10

Clean sealing surfaces on transmission housing (1).

Assembly cleaner

*BR00.45-Z-1028-04A

11

Clean oil pan (4).

If oil pan (4) is reused.

Assembly cleaner

*BR00.45-Z-1028-04A

12

Clean overflow pipe (3).

Assembly cleaner

*BR00.45-Z-1028-04A

13

Clean magnets (8) and insert into oil pan (4).

 Note marked positions of magnets (8).

Assembly cleaner

*BR00.45-Z-1028-04A



Check

14

Check overflow pipe (3) for damage.

If overflow pipe (3) is damaged



Replace overflow pipe (3).



Install

15

Mount overflow pipe (3) flush to flange (arrow) on oil pan (4).

16

Mount seal (5) onto oil pan (4).

 Install new seal (5).

17

Mount oil pan (4) using sprags (6) and bolts (2) onto transmission housing (1).

Topical note

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

AH00.00-P-0020-01A

Topical note

Notes on threaded connections with aluminum screws/bolts

AH00.00-P-0006-01RM


The sprags (6) are only permitted for use on automatic transmission 722.9 and they may not be mixed up with sprags (6) for other automatic transmission.
Otherwise corrosion damage can occur.

 Bolt, oil pan to transmission housing

*BA27.10-N-1006-04B

18

Fill automatic transmission with oil.

AR27.00-D-0270TSR

 The function and leak tightness of the automatic transmission are checked here.

 Complete automatic transmission

Number

Designation

Transmission 722.9

BA27.10-N-1006-04B

Bolt, oil pan to transmission housing

Stage 1

Nm

4

Stage 2

°

180

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01