Remove/install air conditioner housing

AR83.30-P-5200MFA

Remove/install air conditioner housing

15.01.2020

Model

118, 177, 247

1

Drain hose

A32

AC housing

N127

Drivetrain control unit

1

Drain hose

2

Bracket

3

Coolant hoses

A32

AC housing

N127

Drivetrain control unit

 Warning

Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

No parts of the body or limbs should be within the operating area when the components are moving.

AS00.00-Z-0011-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

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

AH83.30-N-0005-01A

Topical note

Notes on coolant

Model 118, 177, 247 with engine 139, 260, 282

AH20.00-N-2080-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Remove expansion valve.

AR83.30-P-5520MFA

2

Carefully open cap at coolant expansion reservoir, release pressure in coolant system, and close cap again.

3

Release and disconnect coolant hoses (3), and seal exposed connections with suitable protective covers.

AR20.20-P-7441-01RQ

 Collect escaping coolant in suitable container.

 Set of protective caps

*001589009100

4

Remove crossmember under instrument panel.

AR68.10-P-1120MFA

5

Remove powertrain control unit (N127) and place to one side with connected lines.

Model 118, 177, 247 with engine 139, 260, 282, 608, 654

AR07.08-P-0002MFE


Do not crush or kink or subject electric lines to tension.
This will result in damage to the electric lines and can impair their function.

6

Remove holder of powertrain control unit (N127) from air conditioner housing (A32).

If air conditioner housing (A32) is replaced.

7

Detach drain hose (1) from air conditioner housing (A32).

8

Disconnect positive line and ground line from PTC heater booster.

Model 118, 177, 247 with engine 608, 654

AR83.70-P-8000MFA

9

Release and disconnect electrical connectors from air conditioner housing (A32).

 The number of electrical connectors varies according to vehicle equipment.

10

Remove electrical wiring harnesses from air conditioner housing (A32).

11

Guide air ducts at bottom out of air conditioner housing  (A32).

12

Carefully take air conditioner housing (A32) off holders (2) and remove.

 Aid of helper required.

13

Remove detachable parts of air conditioner housing (A32).

If air conditioner housing (A32) is replaced.

14

Install in the reverse order.

15

Fill coolant, bleed engine cooling system, and check for leak tightness.

Model 118, 177, 247.7 with engine 139

AR20.00-P-1142MFG

Model 118, 177, 247 with engine 260, 282

AR20.00-P-1142MFC

Model 118, 177, 247 with engine 608

AR20.00-P-1142MFE

Model 118, 177, 247 with engine 654

AR20.00-P-1142MFF