Mercedes-Benz ML320. Manual — part 226

REAR WINDOW WIPER SYSTEM, LOCATION OF COMPONENTS - GF82.30-P-0004-01GH

Location of components

Fig. 22: Identifying Rear Window Wiper System Components Location

WINDSHIELD WIPER SYSTEM, LOCATION OF COMPONENTS - GF82.30-P-0005-01GH

Location of components

as of 1.12.99

GF54.21-P-4100GK

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 23: Identifying Windshield Wiper System Components Location

As of 1.9.00 the vehicle is also offered with rain sensor (B38) code 344a. It is glued to the windshield.

CONTENTS - FUNCTION DESCRIPTION OF WIPER SYSTEM (WS) - GF82.30-P-0998GH

MODEL 163

Wiper system, function

GF82.30-P-0003GH

Rear window wiper system,
location of components

GF82.30-P-0004-
01GH

Windshield wiper system, location
of components

GF82.30-P-0005-
01GH

Intermittent wiping for rear
window, function

up to 31.8.00

GF82.30-P-3001GH

as of 1.9.00

GF82.30-P-3001GK

Windshield intermittent wipe,
function

GF82.30-P-3003GH

Windshield wiper, function

GF82.30-P-3004GH

Anti-block device for wiper motor,
function

GF82.30-P-4008GH

Rear window washer, function

GF82.35-P-3001GH

Windshield washer, function

GF82.35-P-3002GH

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

REAR INTERMITTENT WIPE - FUNCTION - GF82.30-P-3001GH

MODEL 163 Applicable to 31.8.00

The rear intermittent wipe function is activated by placing the rear wiper/washer switch (S78) in the up
position. With the switch in this position, the All Activity Module (AAM) (N10) activates the tailgate wiper
motor (M6/4) every five seconds.

A relay circuit in the wiper motor stops the wiper arm in the park position.

REAR INTERMITTENT WIPE - FUNCTION - GF82.30-P-3001GK

MODEL 163 Applicable as of 1.9.00

The rear intermittent wipe function is linked, among other things, to the operation of the windshield wiper
system. It will therefore be described in relation to the position of the combination switch (S4):

Combination switch (S4) position: OFF

The rear wiper is powered from KI. 15R: ON by operating the rear wiper/washer switch (S78) . Switching
on the wiper illuminates the LED on the rear wiper/washer switch (S78) and immediately causes the wiper arm
to perform one complete sweep before switching to intermittent wiping.

When the vehicle is traveling at speeds of



less than 100 km/h the wipe interval is 10 seconds



of 100 km/h or more the wipe interval is 5 seconds .

The wiper is turned off by reactivating the wiper/washer switch.

Combination switch (S4) position: Wiper speed 1 or 2



The rear wiper is activated from KI. 15R: ON using the rear wiper/washer switch (S78) .

Switching on the wiper illuminates the LED on the rear wiper/ washer switch (S78) and immediately
causes the wiper arm to perform one complete sweep before switching to intermittent wiping. The wipe
interval is 5 seconds .

Survey on wiper system
components (WS), location/
purpose/design/function

GF82.30-P-9998GH

Rear wiper/washer switch

GF82.30-P-4105GH

All Activity Module

To 30.11.99

GF54.21-P-4100GH

As of 1.12.99

GF54.21-P-4100GK

Tailgate wiper motor

GF82.30-P-4105GH

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

The wiper is turned off by reactivating the wiper/washer switch.



The rear wiper switches on automatically from KI. 15R: ON when reverse gear is engaged. The wiper
operates continuously without delays until reverse gear is disengaged. Note: The LED on the rear
wiper/washer switch (S78) does not illuminate when vehicle is in reverse gear.

Combination switch (S4) position: Intermittent

When the combination switch (S4) is in the Intermittent position we must differentiate between vehicles
with and without rain sensors (code 345a) when describing the rear wiper function.

No rain sensor (no code 345a)

The rear intermittent wipe function is activated as follows:



By engaging reverse gear ; from KI. 15: ON . The wiper arm immediately performs one complete
sweep.

Then the rear wiper switches to intermittent wiping at a frequency half that of the front windshield
wiper until the vehicle is put into neutral or another gear.



By activating the rear wiper/washer switch (S78) ; from KI. 15R: ON . Switching on the wiper
illuminates the LED on the rear wiper/washer switch (S78) and immediately causes the wiper arm to
perform one complete sweep. Then the rear wiper switches to intermittent wiping at a frequency half
that of the front windshield wiper. The wiper is turned off by reactivating the wiper/washer switch .

The start of each wipe cycle is synchronized with the front wiper system.

With rain sensor (with code 345a)

The rear intermittent wipe function is activated as follows:



By engaging reverse gear ; from KI. 15: ON . The wiper arm immediately performs one complete
sweep. Then the rear wiper switches to intermittent wiping at a frequency equal to that of the front
windshield wiper until the vehicle is put into neutral or another gear.



By activating the rear wiper/washer switch (S78) ; from KI. 15: ON. Switching on the wiper
illuminates the LED on the rear wiper/washer switch (S78) and immediately causes the wiper arm to
perform one complete sweep before switching to intermittent wiping. The frequency is linked to the
frequency of the front windshield wiper and is thus controlled by the rain (B38)sensor .

NOTE:

The LED on the rear wiper/washer switch (S78) does not illuminate when
the vehicle is in reverse gear.

NOTE:

The LED on the rear wiper/washer switch (S78) does not illuminate when
the vehicle is in reverse gear.

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me