Cool RENAULT SCENIC 2000 J64 / 1.G Technical Note 3426A Workshop Manual

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Page
07
10
11
12
VALUES AND SETTINGS
Capacities - Grades 07-1
Accessories belt tension 07-2
Checking the accessories belt tension 07-3
Tightening the cylinder head 07-5
Tyres and wheels 07-6
Brakes 07-7
Brake compensator 07-8
Underbody height 07-9
Front axle angle checking values 07-11
Rear axle angle checking values 07-13
ENGINE AND PERIPHERALS
Identification 10-1
Oil pressure 10-2
Engine and transmission assembly 10-3
Sump 10-8
TOP AND FRONT OF ENGINE
Timing belt 11-1
Cylinder head gasket 11-6
FUEL MIXTURE
Air inlet 12-1
TURBOCHARGING
Pressure regulating valve 12-2
Pressure adjustment 12-3
Turbocharger 12-4
Air-air exchanger 12-7
Manifolds 12-9
Priming catalytic converter 12-12Page
13
14
DIESEL EQUIPMENT
Technical specifications 13-1
Special features 13-3
Cleanliness 13-6
Location of components 13-9
Injection warning light 13-12
Immobiliser function 13-13
Injection programming/ air conditioning 13-14
Idle speed correction13-16
Pre-postheating control 13-17
Heater plugs 13-18
Thermoplunger 13-19
Low pressure pump (supercharging
pump)13-21
Fuel filter 13-22
High pressure pump 13-23
Injector gallery 13-27
Injectors 13-32
Checking diesel pressure and flow 13-37
Pressure sensor 13-38
Pressure regulator 13-39
Accelerator potentiometer 13-40
Centralised coolant temperature
management 13-41
Computer 13-42
ANTIPOLLUTION
Oil vapour rebreathing 14-1
Exhaust gas recirculation 14-2

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Page
16
19
21
62
STARTING - CHARGING
Alternator 16-1
Starter 16-4
COOLING SYSTEM
Filling - bleeding 19-1
Diagram 19-2
Thermoplunger unit 19-3
Radiator 19-4
Water pump 19-5
ENGINE MOUNTING
Suspended engine mounting 19-6
Exhaust
Catalytic converter 19-7
MANUAL GEARBOX
Identification 21-1
Gears 21-1
Capacity - Lubricants 21-2
AIR CONDITIONING
General 62-1
Compressor 62-2
Dehydration canister 62-3
Condenser 62-4
Pressure relief valve 62-5
Connecting hoses 62-6

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Capacities - Grades
07
107
VALUES AND SETTINGS
Capacities - Grades
* Adjust using the dipstick
(1) After replacing the oil filterComponentsCapacity in
litres
(approx.)*Grade
Diesel engine
(oil)
F9QIn case of oil
change
4,5
4,6 (1)European Union countries
Under no circumstances should ACEA B1 oils be used for diesel
engines
Other countries
ComponentsCapacity
in litresGrade Special notes
Gearbox
JC5 3.1All countries: TRANSELF TRX 75 W 80 W
(Standards API GL5 or MIL-L 2105 G or D)
Coolant
circuit
F9Q 7.5Glacéol RX
(type D)Protection to - 20 ˚C ± 2˚C for warm, moderate and cold
climates.
Protection to - 37˚C ± 2˚C for very cold climates.
07-1

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Engine and transmission assembly
10
10-4
Remove:
– the battery,
– the engine undertray.
Drain:
– the cooling circuit through the bottom hose of the
radiator,
– the gearbox and the engine (if necessary),
– the refrigerant circuit (if fitted) using filling equipment.
Remove:
– the front wheels along with the mudguard,
– the sub-frame and body tie rods,
– the track rod ends,
– the brake calipers (as well as the ABS sensors, if
fitted) and secure them to the suspension springs,
– the shock absorber base bolts,
– the heat shield (A) as well as the gearbox control,
– the clip (1) of the catalytic converter and secure this
to the body.
– the front bumper,
– the horn,
– the two mountings for power assisted steering
hoses on the right hand side of the sub-frame,
– the nut and the eccentric bolt of the steering shaft
yoke, after pushing back the guard.SPECIAL NOTES FOR VEHICLES FITTED WITH A
DRIVER'S AIRBAG
Remove (for the Scénic):
– the windscreen wiper arms using tool Elé. 1294-01,
– the front grilles,
16663R1
WARNING
In order to eliminate any risk of damaging the
rotary switch under the steering wheel, observe
the recommendations below:
!Before the steering column and the steering
rack are uncoupled, the steering wheel MUST
be immobilised with the wheels straight for the
duration of the operation using a "steering
wheel locking tool".
!If there is any doubt regarding the correct
alignment of the rotary switch, the steering
wheel must be removed so that the alignment
procedure described in the "AIRBAG" section
can be applied.
REMINDER: in this case, only qualified
personnel who have received training may carry
out the operation.
11020R

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Engine and transmission assembly
10
10-6
– the earth strap on the bulkhead,
– the mountings of the air conditioning hoses (if
fitted) on the compressor and the condenser.
NOTE: it is essential to insert plugs in the pipes and on
the compressor to prevent the moisture entering the
circuit.
Remove the upper radiator mountings and attach the
cooling system to the engine.
Fit the engine retaining tool Mot. 1453 ensuring that
the strap is correctly positioned.
Remove the suspended engine mounting cover.Insert a wooden block between the gearbox and the
sub-frame.
Remove the nut (1), then tap it with a copper hammer
to release the suspended engine mounting stud.
Fit tool Mot. 1159 as shown below.
13932R
17518R1
17518R2
99024R2

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Engine and transmission assembly
10
10-7
Fit tool Mot. 1040-01 under the engine sub-frame.
Lower the lift until the tool touches the ground.
Remove the sub-frame mounting bolts and take out
the engine and transmission assembly by lifting the
body.
When starting to lift the body, ensure that the catalytic
converter is removed and extract the radiator from its
upper mountings (then place it on the sub-frame).
NOTE: for any operation requiring the engine, gearbox
and sub-frame assembly to be separated, take care to
mark the position of tool Mot. 1159 on the sub-frame.REFITTING
The alignment of the sub-frame with the body will be
made easier by positioning two threaded rods
Mot. 1233-01 in the two front mountings of the sub-
frame on the body.
When lowering the body onto the engine - gearbox
assembly, ensure that the catalytic converter is
refitted.
Tighten the sub-frame mounting bolts to a torque of:
– 6.2 daN.m at the front,
–10.5 daN.m at the rear.
See section 19 "Suspended engine mounting" for
the tightening torques for the engine and gearbox
assembly mountings.
Refitting is the reverse of removal.
Refit the heat shields correctly.
Apply Loctite FRENBLOC to the caliper mounting
bolts and tighten them to the recommended torque.
Press the brake pedal several times to bring the
pistons into contact with the brake pads.
Fill:
– the engine and gearbox with oil (if necessary),
– the cooling circuit and bleed it (see section 19
"Filling - bleeding").
Fill the refrigerant circuit using the filling equipment (if
fitted).
98755R1

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Cylinder head gasket
11
11 - 6
Cylinder head gasket
SPECIAL TOOLING REQUIRED
Mot. 251 -01 Dial gauge support
Mot. 252 -01 Pressure plate to measure
piston protrusion
Mot. 1054 TDC setting pin
Mot. 1159 Tool for holding engine on
subframe
Mot. 1202 -01
Hose clip pliers
Mot. 1202-02
Mot. 1387 Tool for checking the automatic
tensioner centreline
Mot. 1448 Long nose pliers for hose clips
Mot. 1453 Engine support
Mot. 1505 Tool for measuring belt tension
Mot. 1453 Timing belt pretensioning
torque tool
ESSENTIAL SPECIAL TOOLING
Cylinder head testing equipment
14 torx socket
Angular tightening wrench
55 torx socket
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Remove:
– the timing belt (see method described in section 11,
"Timing belt").
– the two PAS pipe mountings on the right hand sub-
frame. TIGHTENING TORQUES (in daN.m and/or ˚)
Tension roller nut 5
Crankshaft pulley bolt 2 + 115˚ ± 15˚
Suspended mounting cover bolt 6.2
Suspended mounting limiter bolt 6.2
Torque reaction arm 6.2
Wheel bolts 9

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Cylinder head gasket
11
11-10
– the low pressure pump connector,
– the bolts (1) and (2),
– the alternator mounting bolts and remove the
alternator, then remove the bolts (3).
Loosen the exhaust pipe clamp mounting.
Remove:
– the catalytic converter mountings on the pre-catalytic
converter,
– the pre-catalytic converter stay (1),
– the mounting (6),
– the oil supply pipe at (7) and remove towards the
bulkhead,
– the pre-catalytic converter mountings to the turbo,
– the catalytic converter removing the engine towards
the cooling system,
– the oil return pipe (8),– the bolt (9) and loosen the other mounting bolts on
the lower timing cover without removing them,
– cylinder head bolts.
Release the cylinder head by setting aside the lower
part of the camshaft housing, without causing the
cylinder head to turn, since this is centred by the two
dowels.
PRF1103
16155R
16156R2
12521-1R3

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Cylinder head gasket
11
11-12
REFITTING (special notes)
Fit the cylinder head gasket. This is centred by two
dowels.
Bring the pistons to mid-stroke position to prevent
them from coming into contact with the valves as the
cylinder head is tightened.
Centre the cylinder head on the dowels.
Lubricate the threads and under the heads of the
mounting bolts.
Tighten the cylinder head using an angular tightening
wrench (see section '07 "Tightening the cylinder
head").
Tightening procedure for the automatic tensioner
mounting
Offer up the three touching bolts then apply a torque of
2.5 daN.m respecting the order shown below.
Refitting is the reverse of removal.
Refit the timing belt, (see procedure described in
section 11 "Timing belt").
Fill and bleed the cooling circuit, (see section 19
"Filling and Bleeding").
To reprime the diesel circuit, consult section 13, "Fuel
filter".
PRF1102

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Pressure regulating valve
12
12-2
TURBOCHARGING
Pressure regulating valve
The LDA (A) of the pressure regulation valve is controlled by a solenoid valve (B) which is controlled by the injection
computer. This solenoid valve varies the underpressure as a function of the engine operating ranges, which allows
the turbocharging pressure to be regulated.
The pressure regulation valve is open in rest position. The engine operates as normally aspirated.
The solenoid valve, closed in rest position, is supplied after starting the engine, after a delay dependent on the coolant
temperature.
Delay (s)
Temperature (˚C)