Mitsubishi Grandis. Manual - part 335

REFRIGERANT LINE

HEATER, AIR CONDITIONER AND VENTILATION

55-225

REMOVAL SERVICE POINT
<<A>> HOSES AND PIPES REMOVAL

CAUTION

Use the plug which is not breathable because 
A/C compressor oil or receiver have high 
hygroscopicity.
Plug the nipple of condenser, compressor, and 
expansion valve to prevent the entry of dust and dirt.

REMOVAL AND INSTALLATION <R.H.D. 
FRONT SIDE>

M1552006400598

<<A>>

9.

Connection with liquid pipe C 
<Vehicles with rear cooler or dual 
automatic A/C>

<<A>>

10. Liquid pipe B <Vehicles with rear 

cooler or dual automatic A/C>

<<A>>

11. Expansion valve
12. O ring

Removal steps (Continued)

Pre-removal and Post-installation Operation
• Refrigerant Draining and Refilling (Refer to Charging and 

Discharging 

P.55-191

.)

AC310260

12

N

4

2

13.7 ± 1 N·m

32 ± 2 N·m

9.8 ± 2 N·m

5.4 ± 1 N·m

5.4 ± 1 N·m

5.4 ± 1 N·m

9.8 ± 2 N·m

5

Low-pressure side 
service valve

1

12

N

12

N

12

N

12

N

12

N

12

N

11

High-pressure 
side service valve

3

8

9

10

24 ± 4 N·m

24 ± 4 N·m

AB

1, 2, 3, 4, 
5, 7, 8

3, 6, 9

A/C compressor oil:SUN PAG 56

6

7

O ring

O ring

Pipe connection

REFRIGERANT LINE

HEATER, AIR CONDITIONER AND VENTILATION

55-226

REMOVAL SERVICE POINT
<<A>> HOSE/PIPE DISCONNECTION

CAUTION

As the compressor oil and receiver are highly 
moisture absorbent, use a non-porous material 
to plug the hose and nipples.
To prevent the entry of other foreign bodies, plug the 
condenser, compressor, and expansion valve 
nipples.

REAR REFRIGERANT REMOVAL AND 
INSTALLATION <REAR SIDE>

M1552006400554

Removal steps

<<A>>

1.

A/C pressure sensor

<<A>>

2.

Flexible discharge hose

<<A>>

3.

Liquid pipe A

<<A>>

4.

Flexible suction hose

<<A>>

5.

Suction pipe A <Vehicles without 
rear cooler and dual automatic 
A/C>

<<A>>

6.

Suction pipe B connection 
<Vehicles with rear cooler or dual 
automatic A/C>

<<A>>

7.

Suction pipe A <Vehicles with rear 
cooler or dual automatic A/C>

<<A>>

8.

Liquid pipe B <Vehicles without rear 
cooler and dual automatic A/C>

<<A>>

9.

Liquid pipe C connection <Vehicles 
with rear cooler or dual automatic 
A/C>

<<A>>

10. Liquid pipe A <Vehicles with rear 

cooler or dual automatic A/C>

<<A>>

11. Expansion valve
12. O ring

Removal steps (Continued)

Pre-removal and Post-installation Operation
Refrigerant Draining and Refilling (Refer to 

P.55-190

)

AC302526

3

1

2

5

4

AB

5

5

5

N

N

5

N

N

13.7 ± 1 N·m

13.7 ± 1 N·m

13.7 ± 1 N·m

13.7 ± 1 N·m

32 ± 2 N·m

32 ± 2 N·m

32 ± 2 N·m

32 ± 2 N·m

2

A/C compressor oil:
  SUN PAG 56

-Pipe coupling

Removal steps

<<A>>

1.

Liquid pipe C

<<A>>

2.

Suction pipe B

•

3rd seat assembly (Refer to 
GROUP 52A, 3rd Seat Assembly 

P.52A-33

)

•

Quarter trim lower (Refer to 
GROUP 52A, Interior Trim 

P.52A-10

)

•

Floor carpet

<<A>>

3.

Rear A/C pipe B

•

A/C pipe protector

<<A>>

4.

Rear A/C pipe A

5.

O ring

Removal steps (Continued)

DUCTS

HEATER, AIR CONDITIONER AND VENTILATION

55-227

REMOVAL SERVICE POINT
<<A>> PIPES REMOVAL

CAUTION

Use the plug which is not breathable because 
A/C compressor oil or receiver have high 
hygroscopicity.
Plug the pipe nipple to prevent the entry of dust and 
dirt.

DUCTS

REMOVAL AND INSTALLATION

M1553001000156

AC310258

3

4

5

3

1

1

6

6

2

AB

DUCTS

HEATER, AIR CONDITIONER AND VENTILATION

55-228

REMOVAL AND INSTALLATION

M1553001000167

Side defroster duct, defroster 
nozzle and ventilation air 
distribution duct removal steps

•

Front pillar trim, cowl side trim 
upper (Refer to GROUP 
52A,Interior Trim 

P.52A-10

.)

1.

Side defroster duct A

•

Instrument panel assembly (Refer 
to GROUP 52A, Instrument panel 

P.52A-2

.)

2.

Defroster and distribution duct 
assembly

3.

Side defroster duct B

4.

Defroster nozzle

5.

Ventilation air distribution duct

Rear heater duct removal steps

•

Front scuff plate inner, cowl side 
trim (Refer to GROUP 52A, Interior 
Trim 

P.52A-10

.)

•

Selector lever, selector lever panel 
and glove box and lower panel and 
console side cover and centre 
console (Refer to GROUP 52A, 
Instrument Panel 

P.52A-2

.)

•

Front seat assembly (Refer to 
GROUP 52A, Front Seat Assembly 

P.52A-21

.)

6.

Rear heater duct

AC302509AB

1

2

3

6

7

8

5

4

1

Roof duct, rear pillar duct 
removal steps

•

Front pillar trim, centre pillar trim 
upper and quarter trim lower (Refer 
to GROUP 52A, Interior Trim 

P.52A-10

.)

•

Headlining (Refer to GROUP 52A, 
Headlining 

P.52A-17

.)

1.

Side roof duct

2.

Centre roof duct

3.

Rear pillar duct

Floor duct removal steps

•

Quarter trim lower (Refer to 
GROUP 52A, Interior Trim 

P.52A-10

.)

•

Third seat assembly (Refer to 52A, 
Third Seat Assembly 

P.52A-33

.)

4.

Rear floor duct A <Rear heater or 
rear A/C vehicles>

5.

Rear floor duct B <Rear heater or 
rear A/C vehicles>

6.

Air outlet <Rear heater or rear A/C 
vehicles>

7.

Seat bracket panel assembly

8.

Rear floor duct C <Rear heater or 
rear A/C vehicles>