ap2700b2710d

Automatic transmission - Check/correct oil level

Type ap · emne 27.00 · version 0400 · 2019-06-05

Gælder for: Transmission 721.903/930/931/932/933/934/936/938/940/941/942/943/944/946/947

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 2 Chassis › 27 Automatgearkasse › 27.00 Generelt

EinPAS 17 Drivstreng/aksel › 17.20 Gearkasse › 17.20.80 Gearkasse komplet

Gælder også for motorer/gearkasser: 721 903, 721 930, 721 931, 721 932, 721 933, 721 934, 721 936, 721 938, 721 940, 721 941, 721 942, 721 943, 721 944, 721 946, 721 947

AP27.00-B-2710D

Automatic transmission - Check/correct oil level

27.05.2019

Transmission

721.903/930/931/932/933/934/936/938/940/941/942/943/944/946/947

Modification notes

22.05.2019

Oil for filling - Approximate level

BF27.00-B-1001-01B

Automatic transmission - Check/correct oil level
Automatic transmission - Check/correct oil level
Automatic transmission - Check/correct oil level

B27.00-0019-01

B27.00-0010-01

B27.00-0011-01

A

Cold oil level check

B

Hot oil level check

C

Checking the oil level with stopped engine

1

Dipstick

2

Oil filler tube

3

Oil drain plug

Check

1

Park the vehicle in a leveled floor and apply the parking brake

The correct oil level in the automatic gearbox is of fundamental importance, as excess oil and insufficient oil are prejudicial and compromise its operation.

Cold oil level check (oil temperature in the automatic gearbox at 30 °C)
The purpose of the cold oil check is to determine if the transmission has enough oil to be operated until a hot oil level check can be carried out. This procedure is performed in the following situations: first oil filling of the automatic gearbox; after a long inactivity; after perform the oil change or repair in the same.

2

Put the shifting gear in neutral (N) position

3

Run engine on idle speed from 3 to 5 minutes

4

Clean around the filling pipe end (2)

5

Remove and wipe the dipstick (1) and check the automatic gearbox oil level

Gearboxes 721.903/930/931/932/933/934/936/938/940/941/942/944/946/947Oil drain plug

*BA27.10-B-1002-04D

Oil for filling - Approximate level

*BF27.00-B-1001-01B

If the level is within the range (A) for checking at cold, the level is satisfactory

Should this not occur, add oil through the filler neck (2) or drain oil through the oil drain plug (3) on the automatic gearbox case until the level reaches the top limit of the range (A).

Oil level check with hot oil (80 - 95 °C)

6

Park the vehicle in a leveled floor and apply the parking brake

7

Put the shifting gear in neutral (N) position

8

Run the engine at idling speed (for approximately 2 minutes)

9

Clean around the filling pipe end (2)

10

Remove and wipe the dipstick (1) and check the automatic gearbox oil level

Gearboxes 721.903/930/931/932/933/934/936/938/940/941/942/944/946/947Oil drain plug

*BA27.10-B-1002-04D

Oil for filling - Approximate level

*BF27.00-B-1001-01B

If the level is within the range (B) for checking at hot, the level is satisfactory

Should this not occur, add oil through the filler neck (2) or drain oil through the oil drain plug (3) on the automatic gearbox case until the level reaches the top limit of the range (B).

11

Checking the oil level with stopped engine

This measuring possibility is valid only for gearboxes heat exchanger coupled directly to the gearbox or for gearboxes where the heat exchanger is situated below the same gearbox.

This procedure has to be carried out with the oil heated, between 5 minutes and 2 hours after engine shutdown.

12

Park the vehicle in a leveled floor and apply the parking brake

13

Remove and wipe the dipstick (1) and check the automatic gearbox oil level

It is absolutely necessary that the oil poured into the automatic gearbox is free of impurities. The containers, fillers etc. must be clean and free of water. Place the dipstick (1) on a clean surface while filling the automatic gearbox.

Gearboxes 721.903/930/931/932/933/934/936/938/940/941/942/944/946/947Oil drain plug

*BA27.10-B-1002-04D

Oil for filling - Approximate level

*BF27.00-B-1001-01B

If the level is within the range (C) of oil level check with the engine stopped, the level will be satisfactory.

Should this not occur , make a new measuring with the engine running and correct if necessary.

Complete automatic gearbox

Number

Designation

Gearbox 721.938/939/940/941/942/946/947/948/949/950

Gearbox 721.903/930/931/932/933/934/936/944/945

BA27.10-B-1002-04D

Oil drain plug

Nm

50

50

Automatic transmission

Number

Designation

Transmission 721.903/930/931/932/933/934

Transmission 721.936/938/939/940/941/942/943/944/946/949/950

BF27.00-B-1001-01B

Oil for filling - Approximate level

First filling of a new transmission (with heat exchanger)

litros

30

28

Maintenance - oil change

litros

14...17

12...18

First filling after installing the transmission in the vehicle

litros

20

20

Oil class

MB 236.1, MB 236.11, MB 236.91, AH00.40-B-0001-01ZFD e AH00.40-B-0001-01ZFE (consultar documentos no site Mercedes-Benz / Guia de Lubrificantes).

MB 236.1, MB 236.11, MB 236.91, AH00.40-B-0001-01ZFD e AH00.40-B-0001-01ZFE (consultar documentos no site Mercedes-Benz / Guia de Lubrificantes).

Automatic transmission

Number

Designation

Transmission 721.945/947

BF27.00-B-1001-01B

Oil for filling - Approximate level

First filling of a new transmission (with heat exchanger)

litros

28

Maintenance - oil change

litros

18

First filling after installing the transmission in the vehicle

litros

20

Oil class

MB 236.1, MB 236.11, MB 236.91, AH00.40-B-0001-01ZFD e AH00.40-B-0001-01ZFE (consultar documentos no site Mercedes-Benz / Guia de Lubrificantes).