Check oil level in automatic transmission and correct if necessary

AR27.00-D-0103TSF

Check oil level in automatic transmission and correct if necessary

18.07.2019

Transmission

700.750 in model 910

Modification notes

24.01.2019

Method adapted.

Operation steps 5, 8 to 20.

2

Filling screw

3

Screw plug

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 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

 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 avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Notes on automatic transmission

AH27.19-P-0001-01NKB



Check

1

Position vehicle on vehicle lift.

AR00.60-D-1000-04TS

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01TS


Position the vehicle aligned horizontally in the longitudinal and transverse direction.
Otherwise measurement errors can occur which can result in malfunctions and transmission damage.

 Align vehicle only, do not raise it yet.

2

Mount diagnostic device.



Connect/disconnect diagnostic unit

AD00.00-D-2000-06TS

3

Start engine.

4

Shift through all drive ranges.

 To do so, operate the service brake and parking brake. Keep engine running at idle speed. Leave each drive range engaged for 10 s. Then engage drive range "P" and do not switch off engine.

5

Query temperature of transmission oil using diagnostic device.


Depending on the repair work involved, different temperatures of transmission oil are required.
Otherwise, trouble-free operation of the automatic transmission is not ensured.

 The test temperature of the transmission oil after the automatic transmission oil cooler has been changed or drained must be  80 °C.
After all other repair and maintenance work, it is sufficient for the transmission oil to have a test temperature of 35 to 45 °C.

6

Raise vehicle.

7

Remove lower engine compartment lining.

If installed.

AR61.20-D-1105TS

8

Remove screw plug (3) of oil level bore and check transmission oil level.

 To do so, position suitable receptacle under oil level bore.
The selected receptacle must be such that it allows the vehicle to be lowered if necessary.

 When the engine is running, the transmission oil level must reach the lower edge of the oil level bore.
Drain excess transmission oil.

 Commercially available devices/tools
Receptacle

9

Screw in screw plug (3).

If transmission oil level is correct,



Replace screw plug (3) and tighten to specified torque.

 Screw plug, oil level bore

*BA27.10-N-1001-06TSF

If transmission oil level is too low,



Tighten screw plug (3) lightly by hand.

10

Lower vehicle.

If transmission oil level is to be corrected.

11

Clean area around filling screw (2).

If the transmission oil level is being corrected for the first time during the work procedure.

Cleaner

*BR00.45-Z-1025-04A

12

Remove filling screw (2).

If the transmission oil level is being corrected for the first time during the work procedure.

13

Fill transmission oil as required.

If transmission oil level is to be corrected.

 Shake transmission oil well before pouring it in.

 Automatic transmission fluid

*BF27.00-N-1001-01TS

 Funnel

*126589126300

14

Raise vehicle.

If transmission oil level has been corrected.

15

Remove screw plug (3) of oil level bore and check transmission oil level again.

If transmission oil level has been corrected.

 Continue to observe the test temperature of the transmission oil.
The test temperature of the transmission oil after the automatic transmission oil cooler has been changed or drained must be  80 °C.
After all other repair and maintenance work, it is sufficient for the transmission oil to have a test temperature of 35 to 45 °C.

 When the engine is running, the transmission oil level must reach the lower edge of the oil level bore.
Drain excess transmission oil.

 Commercially available devices/tools
Receptacle

If transmission oil is below specified test temperature as a result of filling,



Increase transmission oil temperature to appropriate test temperature.

If the transmission oil level is correct,



Replace screw plug (3) and tighten to specified torque.

 Screw plug, oil level bore

*BA27.10-N-1001-06TSF

If transmission oil level is still too low,



Repeat operation steps starting at operation step 9. The funnel remains in the filling hole.

 Funnel

*126589126300

16

Remove any leaked transmission oil residue.

Cleaner

*BR00.45-Z-1025-04A

17

Install lower engine compartment paneling.

If installed.

AR61.20-D-1105TS

18

Lower vehicle.

19

Switch off engine.

20

Remove funnel.

 Funnel

*126589126300

21

Replace filling screw (2).

 Oil filler plug

*BA27.10-N-1003-06TSF

22

Remove any transmission oil residue on transmission.

Cleaner

*BR00.45-Z-1025-04A

23

Disconnect diagnostic unit.



Connect/disconnect diagnostic unit

AD00.00-D-2000-06TS

 Automatic transmission

Number

Designation

Transmission 700.750 in model 910

BA27.10-N-1001-06TSF

Screw plug, oil level bore

Nm

35

 Automatic transmission

Number

Designation

Transmission 700.750 in model 910

BA27.10-N-1003-06TSF

Oil filler plug

Nm

35

 Automatic transmission

Number

Designation

Transmission 700.75 in model 910

BF27.00-N-1001-01TS

Automatic transmission fluid

Transmission and torque converter complete

l

7,6

with oil change

l

5,1

Torque converter

l

2,0

Oil cooler and oil lines

l

0,5

Sheet

BB00.40-P-0236-82A

Repair materials

Number

Designation

Order number

BR00.45-Z-1025-04A

Cleaner

A 005 989 19 71