Flush out automatic transmission and torque converter

AR27.55-D-0100A

Flush out automatic transmission and torque converter

18.07.2019

Transmission

722.683/684/685/686

Modification notes

09.02.2012

Value changed: Automatic transmission fluid (ATF), Specifications for Operating Fluids

BF27.00-N-1001-01A

93

Plug

93a

Plate

93b

Locking pin

1

Oil line connection

2

Right oil cooling line

 

Remove/install

 Warning

Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid.

Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

 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

 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

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on automatic transmission

AH27.19-P-0001-01NKB

1

Remove automatic transmission

Transmission 722.683/684/685

AR27.10-D-0502B

TRANSMISSION 722.686

AR27.10-D-0502WE

2

Replace torque converter

AR27.20-D-0500-01H

Transmission 722.683/684/685/686Height difference "A" between torque converter and transmission flange

*BE27.20-N-1002-01C

Long-life grease

*BR00.45-Z-1001-06A

3

Replace electrohydraulic controller unit

AR27.19-D-0210A

4

Replace transmission oil filter



Transmission 722.683/684/685/686

AP27.00-D-2702H

5

Install automatic transmission

Transmission 722.683/684/685

AR27.10-D-0502B

TRANSMISSION 722.686

AR27.10-D-0502WE

6

Detach retaining clamps of right oil line (2) from oil pan

7

Remove line at automatic transmission

Transmission 722.683/684/685

AR27.10-D-0502-01B

TRANSMISSION 722.686

AR27.10-D-0502-01WE

 Only right line

8

Hold line in a bucket with scaling

 The bucket should have a capacity of 10 liters.

9

Unlock cap (93)

 Break off plate (93a) using a suitable tool and push the part of the safety pin (93b) remaining in the plug (93) downwards and out.

10

Pull plug (93) off filler pipe

 Replace plug

11

Place funnel on filler pipe and fill transmission with 7 liters of oil

 Approx. 13 liters of transmission oil are required for the entire flushing procedure.

 Automatic transmission fluid ATF

*BF27.00-N-1001-01A

 Funnel

*126589126300

Flushing

12

Start engine and allow transmission oil to run through the hose into the bucket


It is essential to observe the work procedure and Specifications for Operating Fluids.
The transmission will otherwise be damaged.

 The aid of an assistant is required for the flushing process.

13

When there are 2 liters of transmission oil in the bucket, immediately switch off the engine

14

Top up with 2 liters of transmission oil

15

Repeat flushing procedure twice

16

Reattach line to automatic transmission

Transmission 722.683/684/685

AR27.10-D-0502-01B

TRANSMISSION 722.686

AR27.10-D-0502-01WE

17

Check oil level in automatic transmission, correct if necessary

AR27.00-D-0270-01A

 Automatic transmission fluid ATF

*BF27.00-N-1001-01A

 Funnel

*126589126300

 Dipstick

*140589152100

 Hand pump

*210589007100

18

Carry out engine test run, checking the transmission for function and oil leaks

Torque converter

Number

Designation

Transmission 722.683 with engine 642.896
Transmission 722.683 with engine 642.992

TRANSMISSION 722.684 with ENGINE 271.951, 646.984/ 985/986/989/990

BE27.20-N-1002-01C

Height difference "A" between torque converter and transmission flange

mm

14

4

Torque converter

Number

Designation

Transmission 722.685 with engine 272.979

Transmission 722.686 with engine 651.955/956/957

BE27.20-N-1002-01C

Height difference "A" between torque converter and transmission flange

mm

14

25

 Automatic transmission

Number

Designation

Transmission 722.683/684/685/686

BF27.00-N-1001-01A

Automatic transmission fluid ATF

Filling capacity - complete refill

Liter

7,1

Filling capacity - oil change

Liter

7,1

Filling capacity, transmission oil change

with torque converter

Liter

7,1

Filling capacity, transmission oil change

without torque converter

Liter

5,5

Sheet

-

Sheet

BB00.40-P-0236-14A

Sheet

-

Sheet

-

Sheet

-

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11