Page 370 of 652
13B-9
DIESEL INJECTION
Diesel injection: List and location of components
K9K, and 740
13B
121436
(11) Pre-postheating unit
120039
(12) Turbocharging pressure sensor
(13) Exhaust gas recirculation sole-
noid valve
(14) Coolant temper ature sensor
(15) Turbocharger upstream inlet air
temperature sensor
(16) Turbocharger downstream inlet
air temperature sensor
120326
(17) Cylinder position sensor
120327
(18) Engine speed and position sen-
sor
Page 371 of 652
13B-10
DIESEL INJECTION
Diesel injection: List and location of components
K9K, and 718
13B
121418
(1) High pressure pump
(2) Venturi
(3) Injectors
(4) Heater plugs
102315
(5) Fuel fl ow actuator
(6) Diesel temperature sensor
(7) Accelerometer
121420
(8) Injector rail
(9) Injector rail pressure sensor
121422
(10) Diesel injection computer
Page 372 of 652
13B-11
DIESEL INJECTION
Diesel injection: List and location of components
K9K, and 718
13B
141220
(11) Pre-postheating unit
120039
(12) Turbocharger pressure sensor
(13) Exhaust gas recirculation sole-
noid valve
(14) Coolant temper ature sensor
(15) Air inlet temperature sensor
upstream of the turbocharger
(16) Air inlet temperature sensor
downstream of the turbocharger
120326
(17) Cylinder reference sensor
120327
(18) Crankshaft position sensor
Page 375 of 652

13B-14
DIESEL INJECTION
Camshaft position sensor: Removal - Refitting
C44, and K9K
13B
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aParts always to be replaced:
-axle subframe bolt.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRemove the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aLift the engine with the support of the (Mot. 1672) so
as to be able to easily access the camshaft position
sensor bolt.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the connector (1) from the camshaft po-
sition sensor.
aRemove:
-the bolt (2) from the camshaft position sensor,
-the camshaft position sensor.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the camshaft position sensor,
-the camshaft position sensor bolt.
aTorque tighten the camshaft position sensor bolt
(8 Nm).
aConnect the camshaft position sensor connector.
II - FINAL OPERATION.
aLower the engine with the support of the (Mot. 1672)
to position the engine, approximately in its normal
position.
aRefit the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) , Special tooling required
Mot. 1672Low er engine support.
Tightening torquesm
camshaft position sen-
sor bolt8 Nm
120326
Page 376 of 652
13B-15
DIESEL INJECTION
Crankshaft position sensor: Removal - Refitting
C44, and K9K
13B
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the crankshaft position sensor connector
(1) from underneath the vehicle.
aRemove:
-the crankshaft position sensor bolt (2) ,
-the crankshaft position sensor.
REFITTING
REFITTING OPERATION FOR PART CONCERNED
aRefit:
-the crankshaft position sensor,
-the crankshaft position sensor bolt.
aTighten the crankshaft position sensor bolt.
aConnect the crankshaft position sensor electrical
connector from underneath the vehicle.
120327
Page 377 of 652

13B-16
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the front engine cover.
aDisconnect the battery (see ) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).
aRemove:
-the dipstick,
-the oil level dipstick nut (1) ,
-the oil level dipstick guide.
aPlug the oil level dipstick guide inlet opening on the
cylinder block.
aDisconnect the following connectors :
-the heater plugs,
-of the injectors,
-the flow actuator,
-the diesel temperature sensor.
aProtect the alternator from fuel outflow. Special tooling required
Mot. 1672Low er engine support.
Mot. 1430Set of 5 crankshaft and cam-
shaft pulley timing pins.
Mot. 1606High pressure pump pulley
support tool.
Mot. 1525Gear extractor for tapered
hub injection pump.
Mot. 1525-02Adapter claws for Mot. 1525.
Equipment required
Diagnostic tool
Tightening torquesm
high pressure pump
bolts on the cylinder
head23 N.m
high pressure pump pul-
ley nut70 N.m
cylinder head sus-
pended mounting bolts25 N.m
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 13B, Diesel injection, Diesel injec-
tion: Precautions for the repair, page 13B-1) .
114527
Page 379 of 652

13B-18
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
a
Disconnect the diesel return pipe (8) on the venturi.
aInsert the blanking plugs.
aRemove the high pressure pipe between the pump
and the rail (see 13B, Diesel injection, High pres-
sure pipe between pump and rail: Removal - Re-
fitting, page 13B-35)
aRemove the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aLift the engine a few centimetres using the (Mot.
1672).
aRemove the camshaft position sensor (see 13B,
Diesel injection, Camshaft position sensor: Re-
moval - Refitting, page 13B-14) .aUnclip the upper timing cover at (9) .
aRemove:
-the plastic bolt (10) ,
-the upper timing cover.
121420
WARNING
To prevent impurities from entering the circuit,
plugs must be fitted to the openings of all the fuel
circuit components exposed to the open air.
Note:
Do not disconnect the right-hand driveshaft when
raising the engine.
K9K, and 718
141221
136654
Page 385 of 652

13B-24
DIESEL INJECTION
High pressure pump: Removal - Refitting
K9K
13B
aRefit the lower timing cover.
aRefit the accessories belt (see 11A, Top and front
of engine, Accessories belt: Removal - Refitting,
page 11A-3)
aRefit:
-the upper timing cover,
-the camshaft position sensor (see 13B, Diesel in-
jection, Camshaft position sensor: Removal -
Refitting, page 13B-14) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) .
aRemove the blanking plugs.
aRefit a high pressure pipe between the pump and
the rail (see 13B, Diesel injection, High pressure
pipe between pump and rail: Removal - Refitting,
page 13B-35) .
aConnect the diesel return pipe to the venturi fitted to
the high pressure pump.aRefit:
-the fuel filter mounting,
-the fuel filter (see 13A, Fuel supply, Fuel filter:
Removal - Refitting, page 13A-4) .
aRefit:
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) ,
-the engine harness channel.
aFit the engine wiring on the engine wiring channel.
aClip on the engine wiring channel.
aConnect to the high pressure pump:
-the diesel supply pipe,
-the diesel return pipe to the diesel filter.
aClip on the high pressure pump pipes.
aRemove the protection on the alternator to prevent
fuel flowing out.
aConnect the connectors of:
-the diesel temperature sensor,
-the flow actuator,
-the injectors,
-the heater plugs.
aRemove the blanking cover which protects the oil
level dipstick guide inlet opening on the cylinder
block.
aRefit:
-the dipstick guide,
-the dipstick,
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing).
aPrime the fuel circuit with a manual priming pump
until the disconnected pipes are filled with fuel; if
necessary, bleed the fuel filter (see 13A, Fuel sup-
ply, Fuel filter: Removal - Refitting, page 13A-4) .
aCheck that there are no fuel leaks.
aConnect the battery (see ) (80A, Battery). K9K, and 740
19659
Note:
Make sure that the tab (23) is positioned oppo-
site the mark (24) .