Nissan Qashqai (2007-2010). Manual - part 500

EX-6

< ON-VEHICLE REPAIR >

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EXHAUST SYSTEM

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

• Always replace seal bearings with new ones when reassembling.
• Discard any heated oxygen sensor 2 which has been dropped onto a hard surface such as a con-

crete floor; use a new one. 

• Before installing a new heated oxygen sensor 2, clean exhaust system threads using the heated oxy-

gen sensor thread cleaner and apply anti-seize lubricant (commercial service tool).

• Never over torque heated oxygen sensor 2. Doing so may cause damage to the heated oxygen sen-

sor 2, resulting in the “MI” coming on. 

• Remove deposits from the sealing surface of each connection. Connect them securely to avoid gas

leakage. 

• When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/left

directions.

• Temporarily tighten mounting nuts and bolts. Check each part for unusual interference, and then

tighten them to the specified torque. 

Exhaust Manifold to Exhaust Front Tube

1.

Securely insert seal bearing (2) into exhaust manifold (1) side in
the direction shown in figure.

CAUTION:

Be careful not to damage seal bearing surface when install-
ing.

2.

With spring, tighten mounting nut.
• Be careful that mounting nut does not interfere with flanged

area (

), and tighten it.

Exhaust Front Tube to Main Muffler

1.

Securely insert seal bearing (2) into exhaust front tube (1) side
in the direction shown in figure.

CAUTION:

Be careful not to damage seal bearing surface when install-
ing.

2.

With spring, tighten mounting bolt.
• Be careful that mounting bolt does not interfere with flanged

area (

), and tighten it.

Inspection

INFOID:0000000000905776

INSPECTION AFTER INSTALLATION

• Make sure clearance between tail tube and rear bumper is even.
• With engine running, check exhaust tube joints for gas leakage and unusual noises.
• Ensure that mounting brackets and mounting rubbers are installed properly and free from undue stress.

Improper installation could result in excessive noise and vibration. 

3

:  Spring

4

: Mounting nut

5

: Exhaust front tube

PBIC3797E

3

:  Spring

4

: Mounting bolt

5

: Main muffler

PBIC3798E

PRECAUTIONS

EX-7

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PRECAUTION

PRECAUTIONS

Removal and Installation

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CAUTION:

• Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat

resistance, corrosion resistance, and shape.

• Perform the operation with the exhaust system fully cooled down because the system will be hot

just after engine stops. 

• Be careful not to cut your hand on the heat insulator edge.

EX-8

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PREPARATION

PREPARATION

PREPARATION

Special Service Tools

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Commercial Service Tools

INFOID:0000000000905821

Tool number
Tool name

Description

KV10114400
Heated oxygen sensor wrench

Loosening or tightening heated oxygen sen-
sor 2
For 22 mm (0.87 in) width hexagon nut

S-NT636

Tool name

Description

Heated oxygen sensor thread cleaner

Reconditioning the exhaust system threads 
before installing a new heated oxygen sensor 
(Use with anti-seize lubricant shown below.)
a: 18 mm (0.71 in) dia. for zirconia heated 
oxygen sensor
b: 12 mm (0.47 in) dia. for titania heated ox-
ygen sensor

Anti-seize lubricant (Permatex 133AR 
or equivalent meeting MIL specifica-
tion MIL-A-907)

Lubricating heated oxygen sensor thread 
cleaner when reconditioning exhaust system 
threads

AEM488

AEM489

EXHAUST SYSTEM

EX-9

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ON-VEHICLE MAINTENANCE

EXHAUST SYSTEM

Inspection

INFOID:0000000000905823

Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage or deterioration.
• If anything is found, repair or replace damaged parts.

SMA211A