Disassemble/assemble transmission housing · ar2640p2002e · Mercedes-Benz WIS

AR26.40-P-2002E

Disassemble/assemble transmission housing

19.11.09

TRANSMISSION 716.622 in MODEL 208.344 /444 with CODE (424) Sequentronic automated manual transmission (SEQ)

TRANSMISSION 716.662 in MODEL 208.348 /448 with CODE (424) Sequentronic automated manual transmission (SEQ)

TRANSMISSION 716.623 in MODEL 209.361 with CODE (424) Sequentronic automated manual transmission (SEQ)

Disassemble/assemble transmission housing

P26.40-2026-09

1 Collar nut

2 Output flange

3 Reverse gear lock

4 Vent housing

5 Screw

6 Venting hose

7 Venting hose

16 Connector

17 Screw

18 Bracket

19 Wiring harness, electrical

20 Screw

21 Cover

X22/17 SEQ (ASG) connector, 18-pin

X22/18 SEQ (ASG) connector, 2-pin

8 Bracket

9 Screw

10 Central connector

11 Screw

12 Screw

13 Oil filler plug

14 Oil drain screw

Modification notes

17.1.07

Nut, output flange to main shaft

Transmission 716.6

*BA26.50-N-1001-01D

	Removing
Danger!	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
Danger!	Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid	Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
1	Detach cover (21) of electrical connectors on right of transmission
2	Unplug 2-pin SEQ connector (X22/18)
3	Switch on ignition and switch through the gears until the transmission is unpressurized	 Read out hydraulic pressure with STAR DIAGNOSIS The transmission must be unpressurized.
		STAR DIAGNOSIS diagnosis system
4	Drain hydraulic fluid		AR26.60-D-0008-01A
	Clean
5	Clean the area around the oil drain screw (14)	Cleaner from package	*BR00.45-Z-1032-04A
6	Remove oil drain screw (14) and drain transmission oil
7	Remove transmission		AR26.10-P-0020E
	Disassemble
8	Fasten transmission on assembly stand		AR26.10-P-0036D
9	Remove output flange (2)	 Pin wrench	*129589010700
		 Socket wrench bit	*126589020900
10	Remove pressure reservoir		AR26.60-D-0015A
11	Remove rpm sensor		AR26.19-D-0023A
12	Remove hydraulic pump		AR26.60-D-0007A
13	Remove sensor plate		AR26.60-D-0017B
14	Removing hydraulic module		AR26.60-D-0019-01B
		 Screwdriver	*716589001100
15	Remove oil reservoir		AR26.60-D-0020A
16	Remove bleed hoses (6, 7)
17	Remove vent housing (4)
18	Remove reverse gear lock (3)	 Impact extractor	*602589003300
		 Extraction claw	*716589033300
19	Remove bracket (8)	 Unclip central connector (10) and plug (16).
20	Remove electric cable harness (19)	 Remove bolts (11, 12, 17) and expose lines.
21	Remove bracket (18)
22	Remove central clutch release bearing		AR26.40-D-0345A
23	Disassemble transmission housing		AR26.40-D-2002-01A
		 Retainer wrench	*716589000900
		 Drift	*711589041500
		 Pliers for external circlip
24	Remove main shaft and countershaft with shift unit		AR26.50-D-4000-01A
		Assembly plate	*716589003100
		 Puller	*000589653300
		 Jaw	*000589873300
	Assemble
25	Install main shaft and countershaft with shift unit		AR26.50-D-4000-02A
		Assembly plate	*716589003100
		 Insertion sleeves	*716589003300
26	Assemble transmission housing		AR26.40-D-2002-02A
		 Collar nut, output flange to main shaft	*BA26.50-N-1001-01D
		 Countershaft bolt	*BA26.50-N-1005-01D
		 SEQ gearshift lever	*000589856300
		 Screwdriver	*716589001100
		 Drift	*210589031500
		 Pin wrench	*129589010700
		 Socket	*126589020900
		 Drift	*716589011500
		 Retainer wrench	*716589000900
		 Drift	*210589041500
		 Insertion tool	*716589043300
		 Pliers for external circlip
		Sealant	*BR00.45-Z-1017-01A
27	Install bracket (18)		*BA26.60-N-1023-01A
28	Mount electrical wiring harness (19)	 Ground terminal point of wiring harness to transmission	*BA26.60-N-1020-01A
		 Wiring harness to transmission bottom right	*BA26.60-N-1021-01A
		 Wiring harness to transmission bottom left	*BA26.60-N-1022-01A
29	Install bracket (8)		*BA26.60-N-1019-01A
		 Clip in central connector (10) and plug (16).
30	Drive in reverse gear lock (3) as far as it will go
31	Install vent housing (4)	 Grease contact surfaces of transmission housing.
			*BA26.60-N-1018-01A
32	Install ventilation hoses (6, 7)
33	Install central clutch release bearing		AR26.40-D-0345A
34	Install oil reservoir		AR26.60-D-0020A
35	Install hydraulic unit		AR26.60-D-0019-02B
		 Pressure line, hydraulic unit to hydraulic unit	*BA26.60-N-1010-01A
		 Pressure line, hydraulic pump to hydraulic unit	*BA26.60-N-1011-01A
		 Bolt, hydraulic unit to bottom of transmission	*BA26.60-N-1012-01A
		 Clutch line to hydraulic unit	*BA26.60-N-1013-01A
		 Bolt, connecting sleeve to central shift shaft	*BA26.60-N-1014-01A
		 Bolt, hydraulic unit to top of transmission	*BA26.60-N-1017-01A
		 Bracket, connection hose to hydraulic unit	*BA26.60-N-1024-01A
		 Bolt, solenoid displacement angle to connecting sleeve	*BA26.60-N-1026-01A
		 Screwdriver	*716589001100
		Sealant	*BR00.45-Z-1017-01A
36	Install sensor plate		AR26.60-D-0017B
37	Install hydraulic pump		AR26.60-D-0007A
38	Install rpm sensor		AR26.19-D-0023A
39	Tighten oil drain screw (14)		*BA26.40-P-1004-01C
40	Remove oil filler screw (13)
41	Fill with transmission oil	 The transmission must be in the installation position.
		 Correct oil level = 10 mm below bottom edge of filler opening.	*BF26.10-P-1001-01C
		 Carry out measurement e.g. with a slanted Allen wrench.
	Filling capacity of transmission oil revised		BT26.00-P-0001-01A
42	Tighten oil filler screw (13)		*BA26.40-P-1003-01C
43	Install pressure reservoir		AR26.60-D-0015A
44	Remove transmission from assembly stand
	Install
45	Install transmission		AR26.10-P-0020E
46	Top up hydraulic oil		AR26.60-D-0008-01A
			*BF26.10-P-1002-01C
		 Hand pump	*210589007100
47	Push on ASG connector, 2-pin (X22/18) until it latches
48	Mount cover (21) of electrical connectors on right of transmission	 Insert journal (arrow) of cover (21) in bracket.
49	Teach in turning angle sensors using STAR DIAGNOSIS

 Housing

Number	Designation		Trans-mission 716.6


BA26.40-P-1003-01C	Oil filler plug	Nm	35
BA26.40-P-1004-01C	Oil drain screw	Nm	30

 Gear set, shafts

Number	Designation				Trans-mission 716.6


BA26.50-N-1001-01D	Nut, output flange to main shaft	M121.5		Nm	110
		M241.5	Stage 1	Nm	-
			Stage 2	Nm	-
			Stage 3	Nm	-
		M261.5	Stage 1	Nm	-
			Stage 2	Nm	-
			Stage 3	Nm	-
BA26.50-N-1005-01D	Bolt, countershaft to countershaft bearing	M141.5		Nm	75
		M181.5		Nm	100

 Shift mechanism

Number	Designation		Trans-mission 716.622/ 662	Trans-mission 716.623


BA26.60-N-1010-01A	Pressure line, hydraulic unit to pressure reservoir	Nm	16	16
BA26.60-N-1011-01A	Pressure line hydraulic pump - hydraulic unit	Nm	16	16
BA26.60-N-1012-01A	Bolt at bottom of hydraulic unit to transmission	Nm	9.5	9.5
BA26.60-N-1013-01A	Clutch line to hydraulic unit	Nm	16	16
BA26.60-N-1014-01A	Bolt of connecting sleeve to central shift shaft	Nm	11.5	11.5
BA26.60-N-1017-01A	Bolt for hydraulic unit on top of transmission	Nm	7.5	7.5
BA26.60-N-1018-01A	Bolt, vent housing to transmission	Nm	6	6
BA26.60-N-1019-01A	Bracket of central connector to transmission	Nm	10	10
BA26.60-N-1020-01A	Ground terminal point, wiring harness to transmission	Nm	10	10
BA26.60-N-1021-01A	Wiring harness to bottom right of transmission	Nm	10	10
BA26.60-N-1022-01A	Wiring harness on transmission at lower left	Nm	15	15
BA26.60-N-1023-01A	Bracket, connector of turning angle sensors	Nm	10	10
BA26.60-N-1024-01A	Bracket of connection hose to hydraulic unit	Nm	6	6
BA26.60-N-1026-01A	Bolt, magnet displacement angle to coupling sleeve	Nm	3	3

 Manual transmission

Number	Designation			Transmission 716.60/61/62/ 630/631/632/ 633/634/635/ 636/638	Transmission 716.640/641/644/646/649, 716.653/654/655/656/657/658/66/67


BF26.10-P-1001-01C	Gear oil	Filling capacity	Liters	1.2	1.5
		Specifications for Operating Fluids	Sheet	BB00.40-P-0235-10A	BB00.40-P-0235-10A
BF26.10-P-1002-01C	Hydraulic oil	Filling capacity	Liters	0.5	0.5
		Specifications for Operating Fluids	Sheet	BB00.40-P-0345-00A	BB00.40-P-0345-00A

126 589 02 09 00

Screwdriver

Wrench socket

Pin wrench

Impact extractor

129 589 01 07 00

716 589 00 11 00

602 589 00 33 00

716 589 00 09 00

Drift

Retainer wrench

Extraction claw

Assembly plate

716 589 03 33 00

711 589 04 15 00

716 589 00 31 00

000 589 87 33 00

Insertion sleeves

Jaws

Puller

Drift

000 589 65 33 00

716 589 00 33 00

210 589 03 15 00

210 589 04 15 00

Insertion tool

Drift

Hand pump

716 589 01 15 00

716 589 04 33 00

210 589 00 71 00

SEQ gearshift lever

000 589 85 63 00

Repair materials

Number	Designation	Order number
BR00.45-Z-1032-04A	Cleaner from package	Würth GmbH D-74650 Künzelsau
BR00.45-Z-1017-01A	Loctite 5203 sealant	002 989 71 20 10

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