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

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Front axle angle checking values
07
07-11
Front axle angle checking values
B0A5
ANGLES VALUESPOSITION OF
FRONT AXLEADJUSTMENT
CASTOR
3˚22'
3˚52' ± 30'
4˚22'
Max. right/left
difference = 1˚


H5 - H2 = 89 mm
H5 - H2 = 69 mm
H5 - H2 = 49 mmNOT
ADJUSTABLE
CAMBER
- 0˚23'
- 0˚29' ± 30'
- 0˚38'
Max. right/left
difference = 1˚


H1 - H2 = 104 mm
H1 - H2 = 115 mm
H1 - H2 = 125 mmNOT
ADJUSTABLE
PIVOT
13˚25'
13˚40' ± 30'
13˚52'
Max. right/left
difference = 1˚


H1 - H2 = 104 mm
H1 - H2 = 115 mm
H1 - H2 = 125 mmNOT
ADJUSTABLE
PARALLELISM
(for 2 wheels)
toe-out
+ 0˚10' ± 10'
+ 1 mm ± 1 mmUNLADENAdjustable by
rotating track rod
sleeves
1 turn= 30'
(3 mm)
POSITION FOR TIGHTENING RUBBER
BUSHES
- UNLADEN -

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Front axle angle checking values
07
07-12
J0A5
ANGLES VALUESPOSITION OF
FRONT AXLEADJUSTMENT
CASTOR
5˚00'
3˚54' ± 30'
3˚19'
Max. right/left
difference = 1˚


H5 - H2 = 23 mm
H5 - H2 = 65 mm
H5 - H2 = 75 mmNOT
ADJUSTABLE
CAMBER
- 0˚15'
- 0˚28' ± 30'
- 0˚37'
Max. right/left
difference = 1˚


H1 - H2 = 90 mm
H1 - H2 = 112 mm
H1 - H2 = 120 mmNOT
ADJUSTABLE
PIVOT
13˚14'
13˚32' ± 30'
13˚55'
Max. right/left
difference = 1˚


H1 - H2 = 90 mm
H1 - H2 = 112 mm
H1 - H2 = 120 mmNOT
ADJUSTABLE
PARALLELISM
(for 2 wheels)
toe-out
+ 0˚10' ± 10'
+ 1 mm ± 1 mmUNLADENAdjustable by
rotating track rod
sleeves 1 turn=
30' (3 mm)
POSITION FOR TIGHTENING RUBBER
BUSHES
- UNLADEN -

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Rear axle angles checking values
07
07-13
Rear axle angles checking values
ANGLES VALUESPOSITION OF
REAR AXLEADJUSTMENT
CAMBER
- 0˚50' ± 15'
- 1˚15' ± 15'UNLADENNOT
ADJUSTABLE
PARALLELISM
(for 2 wheels)
toe-in
- 0˚30' ± 20'
- 3 mm ± 2 mm
- 0˚15' ± 20'
- 1.5 mm ± 2 mmUNLADENNOT
ADJUSTABLE
POSITION FOR TIGHTENING RUBBER
BUSHES
- UNLADEN -

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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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Special notes
13
13-4
OPERATION
The common rail direct high pressure injection system is a sequential diesel injection system (based on the
operation of multipoint injection for petrol engines).
This new injection system reduces operating noise, lowers the quantity of polluting gas and particles and produces
significant engine torque at low engine speeds thanks to a pre-injection procedure.
The low pressure pump (also called the supercharging pump) supplies the HP pump, through the filter with pressure
of between 2.5 and 4 bars.
The HP pump generates the high pressure sent to the injection rail. The pressure regulator located on the pump
modulates the value of the high pressure via the computer. The rail supplies each injector through a steel pipe.
The computer:
– determines the value of injection pressure necessary for the engine to operate well and then controls the pressure
regulator. It checks that the pressure value is correct by analysing the value transmitted by the pressure sensor
located on the rail,
– determines the injection time necessary to deliver the right quantity of diesel and the moment when injection should
be started,
– controls each injector electrically and individually after determining these two values.
The injected flow to the engine is determined depending on:
– the duration of injector control,
– the injector opening and closing speed,
– the needle stroke (determined by the type of injector),
– the nominal injector hydraulic flow (determined by the type of injector),
– the high pressure rail pressure controlled by the computer.
FOR ANY INTERVENTION IN THE HIGH PRESSURE INJECTION SYSTEM YOU MUST RESPECT THE
CLEANING AND SAFETY ADVICE SPECIFIED IN THIS DOCUMENT.

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Idle speed correction
13
13-16
Idle speed correction
IDLING SPEED CORRECTION ACCORDING TO COOLANT TEMPERATURE
CORRECTION OF THE IDLING SPEED WHEN THE POTENTIOMETER IS FAULTY
If the accelerator pedal potentiometer is faulty, idling speed is held at 1200 rpm.
If the information from the accelerator pedal position potentiometer and the brake switch information does not
correspond, the speed is changed to 1250 rpm.
CORRECTION OF THE IDLING SPEED ACCORDING TO THE GEAR RATIOS
The running idling speed is modified according to the gear engaged in the gearbox:
– in 1
st, 2nd and 3rd gears the speed is 835 rpm.,
– for other gears the speed is 925 rpm.

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Fuel filter
13
13-22
Fuel filter
The fuel filter is located in the engine compartment. It is contained in an unremovable cartridge. This cartridge
contains a regulating valve which limits the flow of diesel circulating to the engine.
To replace the filter it is therefore necessary to replace the whole unit.
REMOVAL
IMPORTANT: take note of the quantity of diesel and
the residual pressure in the pipes.
Disconnect the pipes on the filter which:
– feed the engine (1),
– come from the fuel tank (2) (low pressure pump),
– return to the tank (3) via the fuel cock (depending on
version),
– return from the engine (4),
– which return to the tank via the temperature
exchanger (5).
NOTE: certain vehicles are not fitted with a fuel cock.
In this case, ignore the repriming procedure.REFITTING
It is vital that you respect the position of the
connections to the filter.
Be careful not to squeeze or damage the pipes.
IMPORTANT:
A fuel cock (R) is fitted to the fuel filter at the level of the
diesel return pipe to the tank.
It should be in open position for normal operation.
To reprime the circuit after an intervention, a filter
change or a fuel fault you should:
– close the fuel cock (R),
– start the low pressure pump by switching on the
ignition several times,
– start the engine,
– OPEN THE FUEL COCK (the valve is open when the
two coloured lines are aligned).
It is necessary to periodically bleed the water trapped
in the diesel filter via the bleed plug (6). YOU SHOULD FOLLOW THE CLEANNESS
ADVICE CLOSELY.
15773R
16870R3

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Compressor
62
62-2
SCENIC Compressor
REMOVAL
Drain the R134a refrigerant circuit (refer to the
procedure described in the "Air conditioning" manual).
Disconnect the battery.
Remove:
– the cooling assembly (see section 19 ),
– the alternator (see section 16),
– the R134a refrigerant pipes retaining bolt,
– the four compressor mounting bolts.REFITTING
Refitting is the reverse of removal.
Tighten the R134a refrigerant pipes retaining bolt on
the compressor to 3 daN.m.
Fill the R134a refrigerant circuit using the filling
equipment.
IMPORTANT:
When replacing the existing compressor with a new
compressor, it is essential to drain some of the oil from
the new compressor, so that the amount of oil in the
new compressor corresponds to the amount of oil
drained from the oil compressor.
99211S
Oil drained
new
compressor=Oil
in the new
compressor-Oil remaining
in the old
compressor