Windshield wipers, windshield washer system and headlamp cleaning system - function check

AP82.30-P-8252RT

Windshield wipers, windshield washer system and headlamp cleaning system - function check

15.03.2016

Model

251

Shown on model 164.8

Pfeil C

Markings for park position of wiper blades on windshield

S1s7

HCS [SRA] switch



Check

 Danger !

Risk of fire and explosion caused by ignition of window washing fluid or antifreeze and their vapors. Risk of poisoning caused by swallowing window washing fluid or antifreeze or inhaling their vapors. Risk of injury or physical irritations caused by contact of window washing fluid or antifreeze with eyes, mucous membranes or skin.

Wear protective clothing and tight-fitting safety glasses. No open flames, fire or ignition sources. Avoid contact with eyes, mucous membranes and skin. When working with window washing fluids or antifreeze, do not eat, drink, or smoke. Do not inhale vapors and ensure sufficient ventilation in the working area. Store window washing fluid and antifreeze leakfree in safely closed original containers and out of the reach of children.

AS82.35-Z-0001-01A

 Danger !

Injury hazard from pinching and crushing, in extreme cases extremities can even be cut off when caught in windshield wiper mechanism.

When working on the windshield wiper mechanism, always switch off the ignition and store transmitter key outside of transmission range (at least 2 m).

AS82.30-Z-0001-01A

1

Close engine hood



AR88.40-P-1000RT

2

Close liftgate, doors, sliding roof and side windows

3

Switch on ignition

4

Check function of spray nozzles for windshield washer system on windshield and the setting

AP82.35-P-8252-01RT

 The spray jet must hit the windshield in the marked area. If necessary, correct the spray nozzle setting using an  adjusting drift.

 Adjusting tool

*110589026300

For clogged up spray nozzle:



Clean spray nozzle using suitable needle and/or blow out with compressed air from inside out or replace spray nozzle subject to separate invoice.

5

Check function of spray nozzles for windshield washer system on rear window and the setting

AP82.35-P-8252-01RT

 The spray jet must hit the rear window in the marked area. If necessary, correct the spray nozzle setting using an  adjusting drift.

 Adjusting tool

*110589026300

For spray nozzles that cannot be adjusted and with a deviating spray pattern:



Replace spray nozzle subject to separate repair order.

For clogged up spray nozzle:



Clean spray nozzle using suitable needle and/or blow out with compressed air from inside out or replace spray nozzle subject to separate invoice.

6

Check park position of wiper blades

 The wiper blade ends must lie on the markings (arrow C) and may not be offset by more than 10 mm upwards or downwards.

In the event of any deviation to the park position:



Check and adjust wiper arms subject to separate repair order.

7

Check setting of wiper arms on windshield


The wiper blades must not come into contact with the A-pillar or cowl.
The body or wiper mechanism will otherwise be damaged.

 Spray water over the windshield washer system on the windshield and switch on wiper at highest setting.

If there are problems:



Determine and rectify cause, subject to separate repair order.

8

Check setting of wiper arm on rear window


Wiper blade must not make contact with the liftgate.
Otherwise the liftgate or wiper mechanism may be damaged.

 Spray water over the windshield washer system on the rear window and switch on wiper at highest setting.

If there are problems:



Determine and rectify cause, subject to separate repair order.

9

Switch on low beam

Vehicles with CODE 600 (Headlamp cleaning system) or with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination)

10.1

Repeatedly operate windshield washer system and check headlamp cleaning system spray nozzles for proper operation and setting

Vehicles with CODE 600 (Headlamp cleaning system) or with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination)
Vehicles without HCS [SRA] switch (S1s7)

 Repeatedly operate windshield washer system for windshield until the headlamp cleaning system is activated. The spray jet must impact in the light source area on the headlamp lens. Correct setting if necessary.

 Adjusting tool

*110589026300

For clogged up spray nozzle:



Clean spray nozzle using suitable needle and/or blow out with compressed air from inside out or replace spray nozzle subject to separate invoice.

For spray nozzles that cannot be adjusted and with a deviating spray pattern:



Replace spray nozzle subject to separate repair order.

10.2

Press HCS [SRA] switch (S1s7) and check that headlamp cleaning system spray nozzles for proper function and setting

Vehicles with CODE 600 (Headlamp cleaning system) or with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination)
Vehicles with HCS [SRA] switch (S1s7)

 The spray jet must impact in the light source area on the headlamp lens. Correct setting if necessary.

 Adjusting tool

*110589026300

For clogged up spray nozzle:



Clean spray nozzle using suitable needle and/or blow out with compressed air from inside out or replace spray nozzle subject to separate invoice.

For spray nozzles that cannot be adjusted and with a deviating spray pattern:



Replace spray nozzle subject to separate repair order.

11

Switch off low beam

Vehicles with CODE 600 (Headlamp cleaning system) or with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination)

12

Switch off ignition

13

Correct windshield washer system fluid level

AP82.35-P-8210RT

   Only for service with Plus package.