Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 18

DRIVE BELT

EM-273

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[K9K]

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PERIODIC MAINTENANCE

DRIVE BELT

Exploded View

INFOID:0000000010287182

Removal and Installation

INFOID:0000000010287183

CAUTION:

• Replace any belt that has been removed with a new one.
• Auto-tensioner must be replaced with new ones when the belt is replaced.
• Never run the engine without the drive belts to avoid damaging the crankshaft pulley.

REMOVAL

1.

Remove RH front wheel. 

2.

Remove front fender protector (RH) front side bolts and clips. And keep a service area. Refer to 

EXT-29,

"Removal and Installation"

.

3.

Remove drive belt.

• Turn clockwise adjusting bolt.

4.

If necessary, remove auto-tensioner.

INSTALLATION

1.

Install auto-tensioner mounting bolt.

2.

Install the drive belt.

CAUTION:

• Make sure belt is correctly engaged with the pulley groove.
• Check for oil and coolant on belt and each pulley groove.

E1BIA0021ZZ

1.

Crankshaft pulley

2.

A/C compressor or Idler pulley

3.

Drive belt

4.

Alternator

5.

Drive belt auto-tensioner

MBIB0353E

Auto-tensioner mounting bolt 

: 40 N·m (4.1 kg-m, 30 ft-lb)

EM-274

< PERIODIC MAINTENANCE >

[K9K]

DRIVE BELT

3.

Make sure that tension of each belt is within the standard.

Inspection

INFOID:0000000010287184

INSPECTION

WARNING:

Be sure to perform when the engine is stopped.

1.

Inspect drive belt for cracks, fraying, wear and oil. Replace drive belt if necessary.

2.

Manually evaluate the drive belt tension (tension cannot be measured using frequency meter).

3.

Replace drive belt when tension is beyond normal operating limit.

CAUTION:

Auto-tensioner must be replaced with a new one when the belt is replaced.

Adjustment

INFOID:0000000010287186

Belt tensioning is not necessary, as it is automatically adjusted by auto-tensioner.

AIR CLEANER FILTER

EM-275

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AIR CLEANER FILTER

Removal and Installation

INFOID:0000000010282054

REMOVAL

1.

Press the points (A) to separate air resonator from air duct and
air cleaner filter unit.

2.

Remove air resonator following the arrow.

3.

Unhook clips (1) on the air cleaner filter holder.

E1BIA1002ZZ

E1BIA1003ZZ

E1BIA1004ZZ

EM-276

< PERIODIC MAINTENANCE >

[K9K]

AIR CLEANER FILTER

4.

Separate air cleaner filter holder (1) from air cleaner filter unit
and remove air cleaner filter (2). 

INSTALLATION

Install in the reverse order of removal.

E1BIA1005ZZ

DRIVE BELT AUTO-TENSIONER

EM-277

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REMOVAL AND INSTALLATION

DRIVE BELT AUTO-TENSIONER

Exploded View

INFOID:0000000010282057

WITH A/C

Refer to 

GI-4, "Components"

 for symbols in the figure.

WITHOUT A/C

Refer to 

GI-4, "Components"

 for symbols in the figure.

E1BIA0372GB

1.

Drive belt auto-tensioner

2.

Drive belt

3.

Multifunction bracket

E1BIA1196GB

1.

Drive belt auto-tensioner

2.

Multifunction bracket

3.

Drive beltt

4.

Idler pulley

5.

Idler pulley cover

6.

Cranshaft pulley

A.

Refer to 

EM-331

EM-278

< REMOVAL AND INSTALLATION >

[K9K]

DRIVE BELT AUTO-TENSIONER

Removal and Installation

INFOID:0000000010282058

CAUTION:

• Replace any belt that has been removed with a new one.
• Auto-tensioner must be replaced with new ones when the belt is replaced.
• Do not run the engine without the drive belts to avoid damaging the crankshaft pulley.

REMOVAL

1.

Remove engine undercover.

2.

Remove RH front wheel.

3.

Remove right side splash cover.

4.

Remove drive belt. Refer to 

EM-273, "Removal and Installation"

.

5.

Remove auto-tensioner.

6.

Remove idler pulley (Models without A/C only)

INSTALLATION

1.

Install auto-tensioner mounting bolt.

Align the notch and tighten mounting bolt.

2.

Install idler pulley (Models without A/C only)

3.

Install the drive belt. Refer to 

EM-273, "Removal and Installation"

.

4.

Release drive belt auto-tensioner, and apply tension to drive belt.

5.

Turn crankshaft pulley clockwise several times to equalize tension between each pulley.

 40.0 N·m (4.1 kg-m, 30 ft-lb)

MBIB0558E

 40.0 N·m (4.1 kg-m, 30 ft-lb)

AIR CLEANER AND AIR DUCT

EM-279

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AIR CLEANER AND AIR DUCT

Exploded View

INFOID:0000000010478308

Refer to 

GI-4, "Components"

 for symbols in the figure.

Removal and Installation

INFOID:0000000010282060

REMOVAL

1.

Remove air duct (air cleaner side).

2.

Remove air duct (inlet side).

3.

Disconnect mass air flow sensor.

4.

Disconnect air hose from air cleaner filter unit.

5.

Remove air cleaner filter unit.

6.

Remove air hose.

7.

Remove air filter element if necessary.

INSTALLATION

• Install in the reverse order of removal.

Inspection

INFOID:0000000010287198

INSPECTION AFTER REMOVAL

1.

Clip 

2.

Air duct (inlet side)

3.

Air duct (air cleaner side)

4.

Holder

5.

Air filter element

6.

Air cleaner filter unit

7.

Mass air flow sensor

8.

Air hose

9.

Mounting rubber

10. Air cleaner filter unit bracket

E1BIA1158GB

EM-280

< REMOVAL AND INSTALLATION >

[K9K]

AIR CLEANER AND AIR DUCT

Inspect air ducts, air cleaner and hose for crack or tear.
• If anything found, replace air duct and resonator assembly.

CHARGE AIR COOLER

EM-281

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CHARGE AIR COOLER

Exploded View

INFOID:0000000010287199

Refer to 

GI-4, "Components"

 for symbols description.

Removal and Installation

INFOID:0000000010282062

REMOVAL

Air inlet hose and tube.

1.

Remove engine cover.

2.

Remove air inlet hose and tube. Refer to 

EM-281, "Exploded View"

.

Charge air cooler.

1.

Remove front bumper. Refer to 

EXT-19, "Removal and Installation"

.

1.

Turbocharger 

2.

Electric throttle control actuator 

3.

Air inlet tube

4.

Cooling fan

5.

Charge air cooler 

6.

High pressure pump

7.

Air inlet hose

E1BIA1152GB

EM-282

< REMOVAL AND INSTALLATION >

[K9K]

CHARGE AIR COOLER

2.

Put aside front bumper reinforcement (1) with harness assem-
bly.

3.

Remove: 
• Radiator air guide RH (1).
• Radiator air guide LH (2).
• Radiator air guide lower (3).
• Radiator bracket mounting upper (4)

4.

Put aside radiator core support upper. Refer to 

DLK-155, "HRA2DDT : Removal and Installation"

 (Type 1),

DLK-336, "K9K : Removal and Installation"

 (Type 2), 

DLK-467, "K9K : Removal and Installation"

 (Type 3),

DLK-605, "K9K : Removal and Installation"

 (Type 4).

5.

Unhook and rotate charge air cooler (1).

6.

Remove charge air cooler.

CAUTION:

• Avoid interference between the charge air cooler and radiator.
• When removing charge air cooler, close opening on turbo

charger and intake manifold with shop cloth or other suitable
material.

INSTALLATION

1.

When replacing the electric throttle control actuator, this procedure must be performed. Refer to 

ECK-130,

"Special Repair Requirement List"

.

Install in the reverse order of removal paying attention to the following points:
• Apply a neutral detergent (fluid) to the joint between hoses and pipes (oil is not permissible).
• Pay attention to identification mark and direction.
• When installing air inlet hoses and tubes. Refer to 

EM-281, "Exploded View"

.

E1BIA1038ZZ

E1BIA1037ZZ

E1BIA1039ZZ

CHARGE AIR COOLER

EM-283

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Inspection

INFOID:0000000010287200

INSPECTION AFTER REMOVAL

1.

Check that the charge air cooler is not full of oil. In that case, clean it with cleaning agent and then let it
dry.

2.

Check air passages of charge air cooler core and fins for clogging, leaks or deformation. Clean or replace
charge air cooler in necessary.
• Never deform core fins.

EM-284

< REMOVAL AND INSTALLATION >

[K9K]

EGR SYSTEM

EGR SYSTEM

Exploded View

INFOID:0000000010287201

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010287202

REMOVAL

NOTE:
Exhaust Gas Recycling system is divided in two: 
• High pressure Exhaust Gas Recycling.
• Low pressure Exhaust Gas Recycling. 

1.

High pressure EGR valve

2.

Gasket

3.

High pressure EGR housing

4.

Electric throttle control actuator

5.

Low pressure EGR cooler

6.

Low pressure EGR valve

7.

Low pressure EGR intake tube

8.

Exhaust gas temperature sensor

9.

Clamp

10. High pressure EGR pipe

11.

EGR bracket

A.

To EGR tube

B.

From DPF

C.

From cylinder block

D.

To turbocharger air inlet pipe

E.

From charge air cooler

F.

From exhaust manifold

G.

To thermoplunger

E1BIA0900GB

EGR SYSTEM

EM-285

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High pressure Exhaust Gas Recycling. 

1.

Remove air cleaner case. Refer to 

EM-279, "Exploded View"

.

2.

Remove turbocharger air inlet pipe. Refer to 

EM-287, "Exploded View"

.

3.

Remove air inlet tube and air inlet hose. Refer to 

EM-281, "Exploded View"

.

4.

Remove electric throttle control actuator.

5.

Disconnect high pressure EGR solenoid valve connector. Refer to 

EM-284, "Exploded View"

.

6.

Remove high pressure EGR  volume control valve mounting bolts . 

7.

Remove high pressure EGR  volume control valve. Refer to 

EM-284, "Exploded View"

.

CAUTION:

• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.

CAUTION:

High pressure EGR volume control valve housing, high pressure EGR pipe and EGR tube are con-
nected.
To remove those parts, it is necessary to follow the procedure below.

• Drain engine coolant. Refer to 

CO-65, "Draining"

CAUTION:

Perform this step when the engine is cold.

• Remove turbocharger. Refer to 

EM-287, "Exploded View"

.

• Remove high pressure EGR pipe. Refer to 

EM-284, "Exploded View"

.

• Remove EGR tube. Refer to 

EM-284, "Exploded View"

.

• Remove high pressure EGR volume control valve housing. Refer to 

EM-284, "Exploded View"

.

CAUTION:

• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.

Low pressure Exhaust Gas Recycling.

1.

Drain engine coolant. Refer to 

CO-65, "Draining"

CAUTION:

Perform this step when the engine is cold.

2.

Remove Diesel Particle Filter. Refer to 

EX-17, "Exploded View"

.

3.

Remove turbocharger. Refer to 

EM-287, "Exploded View"

4.

Remove exhaust gas temperature sensor on the low pressure EGR intake tube. Refer to 

EM-284,

"Exploded View"

.

5.

Remove low pressure EGR intake tube. Refer to 

EM-284, "Exploded View"

.

6.

Remove low pressure EGR volume control valve mounting bolts. Refer to 

EM-284, "Exploded View"

.

7.

Remove low pressure EGR volume control valve. Refer to 

EM-284, "Exploded View"

.

CAUTION:

• Handle carefully to avoid any shock to EGR volume control valve.
• Never disassemble EGR volume control valve.
• Cover engine openings to avoid entry of foreign materials.

8.

Remove low pressure EGR cooler mounting bolts. Refer to 

EM-284, "Exploded View"

.

9.

Remove low pressure EGR cooler. Refer to 

EM-284, "Exploded View"

.

INSTALLATION

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

CAUTION:

Clean each joint surface before installation.

EM-286

< REMOVAL AND INSTALLATION >

[K9K]

EGR SYSTEM

1.

Perform "EGR volume control valve position learning". Refer to 

ECK-138, "Work Procedure"

. when

removing or replacing EGR volume control valve.

2.

Perform "Low pressure EGR volume control valve position learning". Refer to 

ECK-139, "Work Proce-

dure"

. when removing or replacing low pressure EGR volume control.

3.

When replacing the EGR volume control valve, this procedure must be performed. Refer to 

ECK-130,

"Special Repair Requirement List"

.

4.

When replacing the low pressure EGR volume control valve, this procedure must be performed. Refer to

ECK-130, "Special Repair Requirement List"

.

TURBOCHARGER

EM-287

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TURBOCHARGER

Exploded View

INFOID:0000000010287203

Refert to 

GI-4, "Components"

 for symbol marks in the figure.

Removal and Installation

INFOID:0000000010282069

REMOVAL

1.

Remove cowl top. Refer to 

EXT-29, "Exploded View"

2.

Remove air cleaner case. Refer to 

EM-275, "Removal and Installation"

.

3.

Drain engine coolant. Refer to 

CO-65, "Draining"

.

4.

Remove air inlet tube and air inlet hose. Refer to 

EM-281, "Exploded View"

5.

Remove diesel particulate filter assembly. Refer to 

EX-17, "Exploded View"

.

6.

Remove EGR volume control valve housing. Refer to 

EM-284, "Exploded View"

.

7.

Remove EGR cooler.

8.

Remove oil tubes.

9.

Remove turbocharger assembly (1) as follows.

1.

Oil supply tube

2.

Heat insulator

3.

Bracket 

4.

Gasket 

5.

Oil return pipe

6.

Oil return pipe

7.

O-ring

8.

Exhaust manifold

9.

Gasket

10. Bracket

11.

Spacer

12. Rubber

13. Gasket

14. Turbocharger air inlet pipe

15. Turbocharger

A.

To DPF

B.

To charge air cooler

C.

From low pressure EGR

D.

From turbocharger air inlet pipe

E.

To blow by hose

E1BIA1187GB

EM-288

< REMOVAL AND INSTALLATION >

[K9K]

TURBOCHARGER

NOTE:
After applying penetrative lubrificant to the mounting nuts, check for the penetration of the lubrificant, and
then loosen the nuts to remove.

10. Remove turbocharger oil outlet hose.

CAUTION:

Be careful not to deform each turbocharger piping when pulling out the assembly.

11. Remove turbocharger outlet duct.

INSTALLATION

Install in the reverse order of removal.
NOTE:
Apply LOCTITE FRENETANCHE or equivalent to the threads of the turbocharger oil inlet pipe union to the cyl-
inder head.

Inspection

INFOID:0000000010287204

INSPECTION AFTER REMOVAL

Turbocharger

CAUTION:

When the compressor wheel, turbine wheel or rotor shaft is damaged, remove all the fragments and
foreign matter left in the following passages in order to prevent a secondary failure:

INSPECTION AFTER INSTALLATION

Start engine and raise engine speed to check no exhaust emission leaks.

Suction side

: Between turbocharger and air cleaner

Exhaust side

: Between turbocharger and outlet duct

E1BIA0906ZZ

A

: Check for gas leaks

B

: Check fo oil leaks