Clean evaporator of rear air conditioning

AR83.50-D-9105C

Clean evaporator of rear air conditioning

31.08.2017

Model

906.6/7

with code H08 (Roof-mounted air conditioning system, reinforced)

Model

906.6/7

with code HH7 (Roof-mounted air conditioning system, basic)

1

Blending air flap

4

Housing

3

Air vents

11

Rag

2

Blower

6

Splash guard

10

Pressure-feed spray gun

4

Housing

7

Evaporator

12

Rag

5

Evaporator temperature sensor

9

Cleaning probe

8

Condensation drain

 Danger

Risk of death caused by falling from vehicle roof. Risk of injury to other persons caused by falling objects during work in roof area.

AS65.00-Z-0002-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S



Remove

1

Switch on ignition

2

Close the blending air flap (1), for this purpose, turn the rear air conditioning temperature controller counter-clockwise to the stop

3

Switch off the blower (2) and the rear air conditioning

4

Switch off ignition

5

Close the rear air conditioning vent nozzles (3)

6

Remove the interior compartment filter of the rear air conditioning

Model 906.6/7



Model 906.6/7
with code HH7 (Roof-mounted air conditioning system, basic)
Model 906.7 (except 906.73)
with code H08 (Roof-mounted air conditioning system, reinforced)

AP83.50-D-8386H

7

Seal the openings (arrows) in the housing (4) using an absorbent cloth (11)

8

Remove the evaporator temperature sensor (5) from the housing (4) and place it in the rear with the electrical cable still connected

Model 906.6/7 with code H08 (Roof air conditioning, reinforced)

AR83.50-D-6460B

Model 906.6/7
with code HH7 (Roof-mounted air conditioning system, basic)

AR83.50-D-6460A

9

Remove splash guard (6)

If installed.

10

Cover the blower (2) using an absorbent cloth (12)



Clean

11

Position a suitable collection container under the condensation drains (8)

12

Hold suitable, clean collection containers at a distance that is as short as possible from the openings (arrows) in the housing (4) that have been covered by the cloth (11)


Cleaner must not penetrate the vehicle interior.
Otherwise soiling and damage can occur.

 Aid of helper required.

13

Align the output openings (section A) of the cleaning sensor (9) towards the evaporator (7) and rinse the fins with cleaner for approximately 2 seconds

Pressure-feed spray gun

*BR00.45-Z-1088-04A

Cleaning probe for air conditioning systems

*BR00.45-Z-1093-04A

Cleaner for A/C system

*BR00.45-Z-1084-04A

14

Check the condensation drains (8) for blockage

 Aid of helper required.

If cleaner does not run smoothly from the condensation drain (8).



Clean condensation drains (8).

15

Fully press the trigger of the pressure-feed spray gun (10) and rinse all evaporator fins (7) using cleaner

 Use the entire pressure-feed spray gun (10) content.

16

Remove the collection container below the openings (arrows) in the housing (4) that have been sealed with a cloth (11) once cleaner no longer drips out

17

Allow the cleaner to unfold its effect for a minimum of 30 min


Do not rinse with water or other fluids.
Otherwise the antiseptic effect of the cleaner will be rendered void.

18

Hold suitable, clean collection containers at a distance that is as short as possible from the openings (arrows) in the housing (4) that have been covered by the cloth (11)


Cleaner must not penetrate the vehicle interior.
Otherwise soiling and damage can occur.

 Aid of helper required.

19

Fully press the trigger of the pressure-feed spray gun (10) and blow out all evaporator fins (7) for a minimum of 2 min using compressed air

20

Remove the collection containers once cleaner no longer drips out

21

Dispose of the collection container content in line with environmental protection regulations



Install

22

Remove the cloth (12) from the blower (2)

23

Install a new splash guard (6)

24

Install the evaporator temperature sensor (5) in the housing (4)

Model 906.6/7 with code H08 (Roof air conditioning, reinforced)

AR83.50-D-6460B

Model 906.6/7
with code HH7 (Roof-mounted air conditioning system, basic)

AR83.50-D-6460A

25

Hold a suitable, clean collection container under the openings (arrows) in the housing (4), remove all cloths (11) and remove the collection container

26

Install new interior compartment filter in the rear air conditioning

Model 906.6/7



Model 906.6/7
with code HH7 (Roof-mounted air conditioning system, basic)
Model 906.7 (except 906.73)
with code H08 (Roof-mounted air conditioning system, reinforced)

AP83.50-D-8386H

Drying

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

27

Open the rear air conditioning vent nozzles (3)

28

Open all vehicle doors

29

Start engine

30

Switch on rear air conditioning

31

Set the highest rear air conditioning blower stage

32

Turn the air conditioning temperature control to center position and allow the rear air conditioning to dry for 20 min

33

Turn off engine

34

Close all vehicle doors

Repair materials

Number

Designation

Order number

BR00.45-Z-1084-04A

Cleaner for A/C system

A 000 989 46 00 09

BR00.45-Z-1088-04A

Pressure-feed spray gun

A 000 581 02 04

BR00.45-Z-1093-04A

Cleaning probe for air conditioning systems

A 000 581 00 05