seat memory MERCEDES-BENZ ML320 1997 Complete Owner's Guide

3.1
Disconnect heated seats connector (3) and

connector for front seat backrest incline motor

(4) from left front seat adjustment control

module with memory (N32/1) or right front

seat adjustment control module with memory
(N32/2)

Only for memory switch for left electrically

adjustable front seat, code 241 or memory

switch for right electrically adjustable front

seat, code 242a.


Installation:
Ensure that the electrical

lines are routed properly!

4
Unscrew screws (2) from backrest fittings


*BA91.10-P-1003-01B

Torx bit set

*000589011000

5
Remove front seat backrest (1)

6
Install in the reverse order


Front seats

Number

Designation
Model

Series 163

BA91.10-P-1003-01B
Bolt, front seat backrest to seat frame
Nm
30 (
F
3)

Torx bit set

000 589 01 10 00

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 2

AR91.10-P-1200GH
Remove/install front seat frame trim
4.3.97

MODEL
163.113 /136 /154 /157 /172 with CODE (221b) Electrically adjustable driver and passenger seat

MODEL
163.128 /174 /175

P91.10-0548-11

Shown on right front seat

1
Front seat

2
Outer paneling

3
Front paneling

4
Inner paneling

5
Screws

6
Screws

7
Screws

8
Front seat seat belt buckle

9
Internal Torx drive bolt

S22x1
Left front seat adjustment switch connector

S23x1
Right front seat adjustment switch connector

X54/1
Seat adjustment connector


Remove/install

1.1
Remove front seat

Only necessary when removing the inner

paneling (4).

AR91.10-P-1000GH

2
Unscrew screws (5) from the front

paneling (3)

3
Pull down the front paneling (3) approx.

1 cm as far as the stop and remove forwards

4
Remove electrical line from the clips on the

front paneling (3)

5.1
Disconnect left front seat adjustment switch

connector (S22x1) or right front seat

adjustment switch connector (S23x1) at front
seat frame

Up to 08/98.

6
Unscrew screws (6) from outer paneling (2)

7
Remove outer paneling (2)

8.1
Disconnect left front seat adjustment switch

connector (S22x1) or right front seat

adjustment switch connector (S23x1) from
seat adjustment switch unit

As of 09/98.

9.1
Separate seat adjustment connector (X54/1)

from seat adjustment switch unit

Not fitted with memory switch for left

electrically adjustable front seat, code 241 or

with memory switch for right electrically

adjustable front seat, code 242a.

10
Remove electrical line from the clips on the

outer paneling (2)

11
Unscrew screws (7) from inner paneling

12
Remove inner paneling (4)

13
Install in the reverse order

Copyright DaimlerChrysler AG 09.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

GF91.29-P-0002GH
Electric seat adjustment with memory, function
14.7.99

MODEL
163 as of 1.1.00

with CODE (241) Memory for electrically adjustable left front seat
with CODE (242a) Memory for electrically adjustable right front seat

P91.29-2114-11

Illustrated on left front seat

S91
Left front ESA switch group (with memory)

S91s1
Fore/aft switch

S91s2
Rear raise/lower switch

S91s3
Front raise/lower switch

S91s5
Backrest fore/aft switch

S91s6
Memory button 1 switch

S91s7
Memory button 2 switch

S91s8
Memory button 3 switch

S91s9
Memory store button switch

S92
Right front ESA switch group (with memory)

S92s1
Fore/aft switch

S92s2
Rear raise/lower switch

S92s3
Front raise/lower switch

S92s5
Backrest fore/aft switch

S92s6
Memory button 1 switch

S92s7
Memory button 2 switch

S92s8
Memory button 3 switch

S92s9
Memory store button switch

Electric seat adjustment with memory

The driver and passenger seat can be adjusted electrically. They can

be adjusted manually with the adjustment switch in the corresponding

switch group for both front seats. It is possible to store and call up

three individual seat positions with the memory function.

Seat adjustment:

Key in ignition lock in position 1 or 2, or driver/passenger door

opened.

The electric seat adjustment with memory is controlled by switch

groups (S91, S92).

The head restraints can be adjusted manually.

Control modules

The left/right front seat adjustment control modules with memory

(N32/1, N32/2) control:

-
Four seat adjustment functions

-
The front seat adjustment forward/back motor groups (M27m1,

M28m1), the rear raise/lower motors (M27m2, M28m2) and the

front raise/lower motors (M27m3, M28m3) as well as the

backrest adjustment forward/back motors (M27m5, M28m5)

are identical on the left and right seats.
Function prerequisites

-
Circuit 15R on or (ignition lock in position 1)

-
Circuit 15 on or (ignition lock in position 2)

-
Driver/passenger door opened

Adjustment functions
-
Front height adjustment

-
Longitudinal adjustment

-
Rear height adjustment

-
Backrest adjustment

Group division

The adjustment functions are divided into two groups. It is only

possible to actuate one motor per group simultaneously. When the

seat adjustment switch is actuated for more than one adjustment

function within one group, actuation is accomplished in the following

sequence:

Group 1:
-
Rear height adjustment

Group 2:
-
Longitudinal adjustment

-
Front height adjustment

-
Backrest adjustment

Copyright DaimlerChrysler AG 14.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 1

The
seat position
is sensed by one potentiometer each on the

motors for the adjustment functions. Association of the direction of

rotation of the motor and the potentiometer is accomplished

automatically.

Button actuation

There are two possibilities for
storing
the
seat position
:

a)
First press and hold the memory button (S91s9 or S92s9) and

then press the corresponding memory location button

(S91s6/S91s7/S91s8 or S92s6/S92s7/S92s8) in addition.

b)
First press and then release the memory button (S91s9 or

S92s9). Then press the corresponding memory location button

(S91s6/S91s7/S91s8 or S92s6/S92s7/S92s8)

(within

T
3 s).

c)
Storage is accomplished in the left/right front seat adjustment

control modules with memory (N32/1, N32/2).
Calling up stored seat positions

Press desired memory location button (S91s6/S91s7/S91s8 or

S92s6/S92s7/S92s8) until the seat is adjusted to the stored position.

When adjusting the seat one adjustment function per group is

actuated. If the position button is released while moving to a stored

position the adjustment stops immediately.

Front seat adjustment switch group,

location/design/function
Model 163 with codes 241, 242a

GF91.29-P-2100GM

Front seat adjustment motor group,

location/function
Model 163 with codes 241, 242a

GF91.29-P-2103GM

Left front seat adjustment control module with

memory, location/purpose
Model 163 with codes 241, 242a

GF91.29-P-2106GH

Right front seat adjustment control module

with memory, location/purpose
Model 163 with codes 241, 242a

GF91.29-P-2107GH

Copyright DaimlerChrysler AG 14.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 2

2
Withdraw ignition key

3
Unclip cap (1) from outer paneling (3)

4
Unscrew bolt (2) from belt end fitting (4)

*BA91.40-P-1001-01D

Torx bit set

*000589011000

5
Pull belt end fitting (4) out of front seat

6
Remove paneling on B-pillar

AR68.30-P-4700GH

7
Unscrew bolt (5) of belt height adjuster from

B-pillar


*BA91.40-P-1004-01D

8
Disconnect connector from passenger ETR

[GUS] ignition squib (R12/2)

9
Unscrew bolt (6) from automatic belt retractor

(7)


*BA91.40-P-1008-01D

Torx bit set

*000589011000

10
Detach automatic belt retractor (7)

The automatic belt retractor must not be

disassembled.

Never use oil or grease to eliminate noises.

Automatic belt retractors that have been

opened are no longer under warranty!

11
Check seat belt for signs of damage

e

Check seat belts for damage

AP91.40-P-9150GH

12
Install in the reverse order


Installation:
Pay attention to different

version (left/ right) of emergency tensioning
retractors and satisfactory seating in the

locking device.

13
Read fault memory and erase

14Carry out diagnosis
see Diagnosis Manual.


Seat belts/emergency tensioning retractors

Number

Designation
Model 163 up to

08/99
Model 163 as of

09/99

BA91.40-P-1001-01D
Screw on belt end fitting
Nm
3535

BA91.40-P-1004-01D
Bolt to belt height adjuster
Nm
2525

BA91.40-P-1008-01DScrew on front automatic belt reel
Nm
30 (+10/-0.15)30 (+10/-0.15)

Torx bit set

000 589 01 10 00

Copyright DaimlerChrysler AG 14.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 2

3
Unscrew bolt (1) from seat belt guide bracket

(2)
If necessary, remove belt height adjuster
(5).


*BA91.40-P-1002-01D

4
Disconnect connector from right rear ETR

[GUS] ignition squib (R12/7)

5
Unscrew bolt (3) from automatic belt retractor

(4)


*BA91.40-P-1003-01D

6
Detach automatic belt retractor (4)

The automatic belt retractor must not be

disassembled.

Never use oil or grease to eliminate noises.

7
Check seat belts for damage

e

Check seat belts for damage

AP91.40-P-9150GH

8
Install in the reverse order


Installation:
Pay attention to different

version (left/ right) of emergency tensioning
retractors and satisfactory seating in the

locking device.

9
Read fault memory and erase

10Carry out diagnosis
see Diagnosis Manual.


Seat belts/emergency tensioning retractors

Number

Designation
Model 163 up to

08/99
Model 163 as of

09/99

BA91.40-P-1002-01D
Screw in rear upper belt guide fitting
Nm
3030

BA91.40-P-1003-01D
Bolt to rear inertia reel
Nm
3030

Copyright DaimlerChrysler AG 14.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

Fig. 36: Driver"s Memory Seat Circuit

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:27:59 PMPage 73 © 2006 Mitchell Repair Information Company, LLC.

Fig. 37: Passenger"s Memory Seat Circuit
POWER DISTRIBUTION

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:27:59 PMPage 75 © 2006 Mitchell Repair Information Company, LLC.

Fig. 59: Supplemental Restraints Circuit, W/ Memory Seats (1 of 2)

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:28:00 PMPage 119 © 2006 Mitchell Repair Information Company, LLC.

Fig. 60: Supplemental Restraints Circuit, W/ Memory Seats (2 of 2)

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:28:00 PMPage 121 © 2006 Mitchell Repair Information Company, LLC.