Windshield Wiper and Washer System Audi A8 D3

Windshield wiper system, servicing

Contact Corrosion

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

Windshield wiper system, removing and installing

Note. Be sure wiper motor is in park position before removing wiper arms.

Removing wiper arms

1. Remove wiper blades.
2. Pry off caps -1- at wiper arms using a screwdriver or remove cap nut -2- on driverside. (Scheme 1)
3. Loosen hex nuts -3- and -4- but do not remove them completely.
4. Loosen wiper arms by rocking them gently.
5. Remove hex nuts completely and take off wiper arms.

Installing wiper arms

1. Place wiper arms in appropriate position. See «WIPER BLADE PARK POSITION, ADJUSTING»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__wiper-blade-park-position-adjusting).
2. Tighten hex nuts -3- to 16 Nm and -4- to 4 Nm. (Scheme 1)
3. Install caps -1- at wiper arms or tighten cap nut -2- on driver-side. (Scheme 1)
4. Install wiper blades.

Scheme 1

1. Remove wiper arms. See «REMOVING WIPER ARMS»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__removing-wiper-arms).
2. Remove rubber seal from wind cowl panel.
3. Remove plastic piece above wiper motor, left.
4. Remove the three hex bolts -1- and -2- and pull wind cowl panel out of both retainers -6-. (Scheme 2)
5. Disconnect hose connection -5- for spray jets -4- and remove wind cowl panel upward. (Scheme 2)
6. Loosen mounting bolts -2- (6 x) and remove. (Scheme 2)
7. Disconnect electric connectors at wiper motor.
8. Take linkage out of plenum chamber together with wiper motor.

Installing

Note. Install linkage in park position as shown in illustration.

Scheme 2

1. Insert linkage and wiper motor in plenum chamber and connect electrical connector.
2. Tighten mounting bolts -2- to 6 Nm. (Scheme 3)
3. Tighten mounting nuts -1- to 16 Nm and mounting nuts -3- to 4 Nm.
4. Connect water hose -5-. (Scheme 4)
5. Install wind cowl panel and secure using bolts -1- and -2-.
6. Insert plastic piece above wiper motor, left.
7. Install rubber seal at wind cowl panel.
8. Bring wiper blades into park position. See «WIPER BLADE PARK POSITION, ADJUSTING»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__wiper-blade-park-position-adjusting).

Wiper blade park position, adjusting

1. Operate wiper motor and allow it to return to park position.
2. Position wiper blades at marking -1- on windshield, align and tighten mounting nuts.
3. Operate wipers in brief wipe mode.
4. If necessary, re-align wiper arms and tighten nuts again to 16 Nm.

Possible causes for wiper blades skipping

1. Windshield is scratched
2. Wiper blade rubber is torn
3. Wiper arm or blade is bent or loose
4. Wiper blade is coated with wax or is no longer straight

If wiper blades are skipping and none of the causes listed apply, check and, if necessary, adjust the angle of the wiper arms relative to the windshield before installing new wiper blades.

Required special tools and equipment

1. 3358 B windshield wiper adjuster

Checking wiper arm angle

1. Bring wiper arms into park position.
2. Remove wiper blade.
3. Insert wiper arm -2- into windshield wiper adjuster 3358 B and secure with locking screw -3-.
4. Compare indicated angle with specified value in table.

Specified values for adjustment angle

WIPER ADJUSTMENT ANGLE SPECIFIED VALUES

Adjusting windshield wiper arms

Note. The following list refers to see scheme 8.

Scheme 3

1. Move wiper arms to park position.
2. Remove wiper blade.
3. Insert wiper arm -2- into windshield wiper adjuster 3358 B and secure with locking screw -3-. see scheme 8
4. Place a 24 mm wrench -1- on the windshield wiper adjuster and squeeze wiper arm -2- to specified value (arrows). see scheme 8
5. Specified values. See «SPECIFIED VALUES FOR ADJUSTMENT ANGLE»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__specified-values-for-adjustment-angle).
6. Loosen locking screw -3- and remove wiper arm -2- from adjuster. see scheme 8
7. Re-insert wiper arm -2- in windshield wiper adjuster 3358 B and re-secure locking screw -3-. see scheme 8
8. Compare indicated angle with specified value. See «SPECIFIED VALUES FOR ADJUSTMENT ANGLE»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__specified-values-for-adjustment-angle).
9. If necessary, repeat procedure until actual angle corresponds to specified angle.
10. Remove adjustment tool and install wiper blade.

Windshield washer system, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

Windshield washer system, component overview

Note. The following list refers to see scheme 9.

1. Headlight washer system pump
2. Pump for windshield washer system
3. Wiper fluid reservoir
4. Hose to spray jets for headlight washer system in bumper
5. Seal
6. Seal
7. Hose clamp
8. Hose to spray jets for windshield washer system
9. Grommet
10. Mounting bolts

Wiper fluid reservoir, removing and installing

Note. The wiper fluid reservoir in the engine compartment, right-front, provides wiper fluid for both the windshield washer system and the headlight washer system.

Removing

1. Remove cover above air filter in engine compartment and then remove air filter.
2. Remove mounting bolts -10- (3 x SW10) (tightening torque: 5 Nm).
3. First disconnect hose connections and then electrical harness connectors at pumps -1- and -2-.
4. Take wiper fluid reservoir -3- out of engine compartment.

1. Installation is reverse of removal.

1. Remove wiper arms. See «REMOVING WIPER ARMS»(/audi/a8/d3-2002-2005/remont/wiperwasher-systems/#windshield-wiper-and-washer-system__removing-wiper-arms) .
2. Remove rubber seal from wind cowl panel.
3. Remove the three hex bolts -1- and -2- and remove wind cowl panel from both retainers -6-.
4. Disconnect hose connection -5- for spray jets -4- and remove wind cowl panel upward.
5. Using a small screwdriver, press back against retaining tab (arrow) and simultaneously press lightly against connection piece.
6. Press spray jets outward to remove from wind cowl panel.

1. Installation is reverse of removal.

Spray jets, adjusting

Required special tools and equipment

1. Windshield washer aiming tool 3125 A

1. Using a water soluble pen, mark the four points on the windshield.

Note. Adjustment points are measured from the outside edge of the windshield's rubber seal. Adjustment points account for the vehicle's motion; wiper fluid sprays at a slightly different angle when the vehicle is stationary.

Adjustment

1. 150 mm
2. 340 mm
3. 120 mm
4. 590 mm

Scheme 4

1. Using the adjustment tool, aim jets to the points marked on the windshield.

Headlight washer system, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

1. Remove bumper. See «FRONT BUMPER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/exterior-body-panels/#bumper).
2. Remove spray jet bracket from bumper (pull upward) and press out toward left.
3. Remove mounting bolts -1- on interior of bumper. see scheme 16
4. Disconnect wiper fluid hose connection -2- and remove spray jet motor -3-.

Note. Illustration depicts the left spray jet. Right spray jet is mirror image of left spray jet.

1. Installation is reverse of removal.

Headlight washer jets, adjusting

Note. Spray jets are supplied with correct settings and do not need to be adjusted after installation.

Washer fluid reservoir, removing and installing

Note. The wiper fluid reservoir provides wiper fluid for both the windshield washer system and the headlight washer system. It is located in the engine compartment, right-front. Removing and installing. See WIPER FLUID RESERVOIR, REMOVING AND INSTALLING .

See also:
• EXAMPLE: SWITCH OFF EMERGENCY (BACK-UP) BATTERY
• EXAMPLE: SWITCH ON EMERGENCY (BACK-UP) BATTERY
• FRONT BUMPER, REMOVING AND INSTALLING
• WIPER BLADE PARK POSITION, ADJUSTING
• REMOVING WIPER ARMS
• SPECIFIED VALUES FOR ADJUSTMENT ANGLE
• WIPER FLUID RESERVOIR, REMOVING AND INSTALLING