AR83.30-P-5200P Remove/Install AC Housing

AR83.30-P-5200P Remove/Install AC Housing
- with CODE (580a) Automatic air conditioning
- with CODE (581b) Convenience automatic air conditioning






















DANGER:
- Risk of injury to skin and eyes from scalding with hot coolant which splashes out. Risk of poisoning from swallowing coolant.
- Do not open cooling system unless coolant temperature is below 90 degrees C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles.
- Wear protective gloves, protective clothing and eye protection.
- Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning from inhaling overheated refrigerant vapors. Risk of injury from skin and eye contact with liquid refrigerant.
- Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear eye protection and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been discharged.

CAUTION: Protect air conditioning circuit and components from moisture when carrying out repair work.

1 Open engine hood
2 Reduce pressure in cooling system
3.1 Detach lower engine compartment paneling

NOTE: Front paneling.

3.2 Remove bottom section of sound-proofing capsule

NOTE: Front lower section.

4 Drain coolant at radiator
5 Completely move back driver and passenger seats.

DANGER:
Completely move back driver and passenger seats. Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury from caustic burns to eyes and skin from battery electrolyte or from handling damaged lead acid batteries.
- No fire, sparks, naked flames or smoking.
- Wear acid-proof gloves, clothing and eye protection. Pour battery electrolyte only into suitable and appropriately marked containers.

6 Remove instrument panel carrier
7 Remove accelerator pedal
8 Fold back floor covering at front left

NOTE: Air duct to left rear compartment (14) must be accessible.

9 Remove air duct to left rear compartment (14)
10 Fold back floor covering at right front

NOTE: Air duct to right rear compartment (15) must be accessible.

11 Remove air duct to right rear compartment (15)
12 Remove drier cartridge

CAUTION: Installation: after the refrigerant circuit is opened replace drier cartridge. Observe additional oil quantity after replacing parts.

13 Unscrew nut (1)
- Nut for expansion valve: 8 N.m

14 Remove pressure lines together with retaining plate (2)

CAUTION: Plug openings.

- See "Special Tools" given below.

CAUTION: Installation: Replace O-rings (moisten with compressor oil).

15 Remove hose clamp (3) from fitting

CAUTION: Installation: install hose clamp (3) at angle of 45 degrees (figure A) with hose clamp pliers.

- Hose clamp pliers (length 210 mm; adjustment range 80 mm)
See "Commercially Available Tools" given below.

16 Remove hot water feed hose (4)

CAUTION: Plug opening.

- See "Special Tools" given below.

17 Remove hose clamp (5) from fitting

CAUTION: Installation: Install hose clamp (5) at angle of 45 degrees (figure B) with hose clamp pliers.

- Hose clamp pliers (length 210 mm; adjustment range 80 mm)
See "Commercially Available Tools" given below.

18 Remove hot water return hose (6)

CAUTION: Plug opening.

- See "Special Tools" given below.

19 Remove condensate water drain hoses (7)
20 Disconnect connector (8) from evaporator temperature sensor (B10/6)
21 Slightly remove AC housing from fire wall

CAUTION: Installation: moisten seal (11) on AC housing air inlet with soap solution.

- Do not oil seal. Ensure that seal (11) on AC housing air inlet is seated properly.
- Grease guides (12).
- MB long-term grease

22 Remove cockpit wiring harness (9) from AC housing
23 Remove AC housing

CAUTION: Remove AC housing with aid of helper. Avoid damaging passenger compartment and AC housing.

24 Install in the reverse order
25 Read diagnostic trouble code memory and erase
26 Synchronize actuator motors.

Special Tools

Set of Plugs, P/N# 129 589 00 91 00:

Commercially Available Tools

Commercially Available Tools: