Mitsubishi Outlander GS45X. Manual - part 524

EXHAUST PIPE AND MAIN MUFFLER

TSB Revision

INTAKE AND EXHAUST

15-23

Required Special Tool:

• MB991953: Oxygen Sensor Wrench

REMOVAL SERVICE POINTS

.

<<A>> LINER AIR-FUEL RATIO SENSOR/HEATED 
OXYGEN SENSOR REMOVAL

Remove the connection and clamp of linear air-fuel ratio sensor 
connector or heated oxygen sensor connector, and then use 
special tool MB991953 to remove the linear air-fuel ratio sensor 
or heated oxygen sensor.

.

Exhaust main muffler and rear 
floor panel heat protector 
removal steps 

1.

Exhaust main muffler

10. Seal ring
11. Exhaust muffler hanger

>>

C

<<

12. Exhaust tail pipe diffuser
16. Rear floor panel heat protector 

Center exhaust pipe and front 
floor panel rear heat protector 
removal steps 

2.

Backbone brace

•

Lower side cover (RH) (Refer to 
GROUP 52A, Front Floor 
Console Assembly 

P.52A-7

).

•

Turn up the passenger's side floor 
carpet.

3.

Linear air-fuel ratio sensor 
connection

<<

A

>>

>>

B

<<

4.

Linear air-fuel ratio sensor

5.

Harness cover

•

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

P.52A-17

).

6.

Heated oxygen sensor connector 
connection

<<

A

>>

>>

B

<<

7.

Heated oxygen sensor

8.

Center exhaust pipe

10. Seal ring
13. Exhaust pipe gasket
14. Exhaust muffler hanger

<<

B

>>

>>

A

<<

17. Rivet
18. Front floor rear panel heat 

protector
Front exhaust pipe and front 
floor panel front heat protector 
removal steps 

9.

Front exhaust pipe

13. Exhaust pipe gasket
15. Seal ring
19. Dash panel heat protector

<<

B

>>

>>

A

<<

20. Rivet
21. Front floor front panel heat 

protector

Center exhaust pipe and front 
floor panel rear heat protector 
removal steps (Continued)

AC703721

MB991953

AC

Linear air-fuel ratio 
sensor or heated 
oxygen sensor 

EXHAUST PIPE AND MAIN MUFFLER

TSB Revision

INTAKE AND EXHAUST

15-24

<<B>> RIVET REMOVAL

CAUTION

Be careful not to damage the heat protector with the drill.
Use a drill [6.0 mm (0.24 inch)] to make a hole in the rivet to 
break it, and then remove the rivet.

INSTALLATION SERVICE POINTS

.

>>A<< RIVET INSTALLATION

Use a rivet tool shown in the illustration to connect the parts 
with rivets by the following procedures.
1. Insert the rivet into a corresponding location.
2. Set the rivet tool at a portion A of rivet.
3. While pushing the flange surface of the rivet onto parts to be 

fixed with the rivet tool, press the handle of the tool.

4. Thin part of portion A of the rivet will be cut off and the part is 

fixed in position.

.

AC301909AB

Heat
protector

Drill

Rivet

AC700168

Heart protector

Rivet tool

AB

1

2

3

4

Rivet

Fixing parts

Rivet tool

Rivet

Portion A

Flange

EXHAUST PIPE AND MAIN MUFFLER

TSB Revision

INTAKE AND EXHAUST

15-25

>>B<< LINER AIR-FUEL RATIO SENSOR/HEATED 
OXYGEN SENSOR INSTALLATION

Tighten the linear air-fuel ratio sensor or heated oxygen sensor 
to the specified torque by using special tool MB991953.

Tightening torque: 44 

± 5 N⋅m (32 ± 3 ft-lb)

.

>>C<< EXHAUST TAIL PIPE DIFFUSER 
INSTALLATION

When the part is reused, make sure that there is no excessive 
play after installation and that the part is securely fixed.

REMOVAL AND INSTALLATION <3.0L ENGINE>

M1151008702697

AC703721

MB991953

AC

Linear air-fuel ratio 
sensor or heated 
oxygen sensor 

AC802708

50 ± 10 N·m
37 ± 7 ft-lb

50 ± 10 N·m
37 ± 7 ft-lb

41 ± 10 N·m
30 ± 8 ft-lb

41 ± 10 N·m
30 ± 8 ft-lb

7.0 ± 3.0 N·m
62 ± 27 in-lb

5.0 ± 2.0 N·m
45 ± 17 in-lb

5.0 ± 2.0 N·m
45 ± 17 in-lb

8

11

10

9

7

5

13

12

14

15

16

18

1

2

4

6

3

3

N

N

N

N

N

N

N

AB

<FWD>

17

N

9.5 ± 3.5 N·m
84 ± 30 in-lb

EXHAUST PIPE AND MAIN MUFFLER

TSB Revision

INTAKE AND EXHAUST

15-26

REMOVAL SERVICE POINTS

.

<<A>> EXHAUST TAIL PIPE DIFFUSER REMOVAL

Insert the wood and tire lever between exhaust tail pipe diffuser 
and exhaust main muffler.
And then turn the tire lever and remove exhaust tail pipe dif-
fuser.

.

AC802709

50 ± 10 N·m
37 ± 7 ft-lb

50 ± 10 N·m
37 ± 7 ft-lb

41 ± 10 N·m
30 ± 8 ft-lb

41 ± 10 N·m
30 ± 8 ft-lb

7.0 ± 3.0 N·m
62 ± 27 in-lb

5.0 ± 2.0 N·m
45 ± 17 in-lb

5.0 ± 2.0 N·m
45 ± 17 in-lb

8

11

10

9

7

5

13

12

14

15

16

18

1

2

4

6

3

3

N

N

N

N

N

N

N

5.0 ± 2.0 N·m
45 ± 17 in-lb

3

AB

<AWD>

17

N

9.5 ± 3.5 N·m
84 ± 30 in-lb

Exhaust main muffler and rear 
floor panel heat protector 
removal steps 

1.

Exhaust main muffler

2.

Gasket

3.

Hanger

<<A>>

17. Exhaust tail pipe diffuser
18. Rear floor panel heat protector

Center exhaust pipe removal 
steps 

4.

Center exhaust pipe

5.

Seal ring

2.

Gasket

6.

Hanger

Front exhaust pipe and front 
floor rear panel heat protector 
removal steps 

7.

Front exhaust pipe

8.

Gasket

9.

Gasket

5.

Seal ring

10. Front exhaust pipe RH
11. Gasket
12. Dash panel heat protector

<<B>> >>A<<

13. Rivet
14. Front floor front panel heat 

protector

<<B>> >>A<<

15. Rivet
16. Front floor rear panel heat protector

AC710455

Exhaust tail pipe diffuser

Wood

AC

Tire lever