1995 RENAULT MEGANE SCENIC fuel filter

TOP AND FRONT OF ENGINE
Cylinder head gasket
11 F3R ENGINE
Remove:
- the timing belt (see section 11-Timing belt),
- the spark plug caps.
98899R
98900S
Disconnect:
- the pinking sensor,
- the cylinder reference sensor,
- the absolute pressure sensor and its pipe,
- the idle speed valve,
- the air and coolant sensors,
- the throttle potentiometer,
- the injectors,
- the canister solenoid valve pipe,
- the oil vapour rebreathing pipe,
- the brake servo pipe,
- the accelerator cable,
- the fuel supply and return pipes (gallery end),
- the coolant temperature sensor (9).
Remove:
- the air filter,
- hoses 3, 4, 5, 6, 7, 8,
99222R
11-17

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit via the lower radiator
hose (radiator end).
SPECIAL TOOLING REQUIRED
TIGHTENING TORQUES (in daN.m)
Wheel bolt 9
Crankshaft pulley bolt 12
Suspended engine mounting cover bolt 6
Suspended engine mounting limiter bolt 4
Tensioner nut 5
EQUIPMENT REQUIRED
Star socket ST X 14 FACOM for example
Star socket EX 255 FACOM for example
Engine support tool DESVIL M300 for example
99174R
Mot. 251-01 Dial gauge mounting
Mot. 252-01 Pressure plate for measuring cylinder liner protrusion
Mot. 1311-06 Tool for removing fuel pipe
Mot. 591-02 Index
Mot. 591-04 Angular wrench for tightening the cylinder head
Mot. 1054
TDC pin
Mot. 1159 Tool for retaining the engine on the sub-frame
Mot. 1202 Hose clip pliers
Mot. 1273 Tool for checking belt tension
Mot. 1281-01 Oil filter wrench
Mot. 1289-03 Fork for centring suspended engine mounting limiter
Remove:
- the timing belt (see section 11 - timing belt),
- bolts (A) mounting the tensioner, together
with bolt (B) for the alternator drive belt ten-
sion strut mounting,
11-22

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
- the exhaust flange at the manifold outlet,
- the air filter,
- the earth strap,
- the fuel return union on the injection pump,
together with the mounting bracket on the
manifold,
- the mounting bolts for the inner timing cover
on the engine block.
95658-4R
Remove the oil filter.
Release the wiring from the alternator and move
the wiring to one side. Fit tool Mot. 1159 under the oil pump.
Note : cut the base of tool Mot. 1159 to 30 mm.
99023R2
99024R2
11-23

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
99028R
Diagram for drilling tool Mot. 1159 (diameter 10.5
mm).
Fit the bracket of tool Mot. 1159 under the water
pump.
99310R
98904S
Disconnect:
- the thermostat hoses,
- the connectors for the sensors,- the brake servo pipe,
- the 2 oil vapour rebreathing hoses on the decan-
ter,
- the accelerator cable,
- the preheater plug connector,
- the injection pump connectors,
- the solenoid valve pipes,
- the fuel supply pipe to the diesel fuel filter using
tool Mot. 1311-06
99461R
Remove the cylinder head bolts using the star
socket 55 toolEX 255
FACOM for example.
11-24

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 335 tracks
Injection Regulated monopoint injection
Ignition Advance laws integral in injection computer
Ignition power module
Pinking sensor
Plugs
EYQUEM FC 52 LS
NGK BCP 5 ESGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Fuel filter Mounted in front of the fuel tank under the vehicle
Fuel pump
WALBROSubmerged in fuel tank
Flow: 50 litres/hour minimum
Pressure: 1.06 bar
Pressure regulator Pressure 1.06 bar (non-adjustable)
Solenoid injector Voltage: 12 V
Resistance : ≈ 2 Ω
Throttle body BOSCH Diameter 36 mm
Idle speed regulation
micromotorNon-adjustable
Integral no load switch
Fuel vapour recirculation
canister
Solenoid valve
CAN 10Voltage: 12 V
Resistance : ≈ 34.5 Ω
Heated oxygen sensor NGK Voltage at 850°C
Rich mixture : > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding Throttle potentiometer
Idle speed regulation: 15≤#17≤30
Full load: 192≤#17≤210
Adaptive richness
operation: 112≤#30≤160
Adaptive richness
idle speed: 104≤#31≤160
12-2

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 555 tracks
Injection Semi-sequential regulated multipoint injection
Ignition Static with two dual output coils
Power module integral in computer
One pinking sensor
Plugs
EYQUEM FC 52 LS
CHAMPION C10YCGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Air filter Replace every other oil change
Fuel filter Mounted in front of the fuel tank under the vehicle
Replace at major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: 80 litres/hour minimum for regulated
pressure of 3 bars and voltage of 12 V
Pressure regulator Regulated pressure
Zero vacuum: 3 ± 0.2 bars
Vacuum of 500 mbar : 2.5 ± 0.2 bars
Solenoid injector
SIEMENSVoltage: 12 V
Resistance : 14.5 ± 1 Ω
Throttle body
PIERBURG
714 186Diameter 44 mm
Idle speed regulation stepping
motor
EGR (K7M 703) solenoid valve
PIERBURG
72213000Voltage: 12 V
Resistance : 30 ± 3 Ω
Fuel vapour recirculation
canister
Solenoid valve
CAN 10
DELCO REMY
Voltage: 12 V
Resistance : 35 ± 5 Ω
Heated oxygen sensor NGK Voltage at 850°C
Rich mixture: > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding
FICHE n° 27
CODE D13
SELECTOR ON S8
Throttle potentiometer
Idle speed regulation: 5 ≤ #17 ≤ 47
Full load: 164 ≤ #17 ≤ 253
R.C.O. idle speed: 4 % ≤ #12 ≤ 14 % (K7M 720)
6 % ≤ #12 ≤ 15 % (K7M 702/703 in P and N)
10 % ≤ #12 ≤ 20 % (K7M 703 in D)
Adaptive R.C.O
idle speed: - 2.4 % ≤ #21 ≤ + 6.2%
Adaptive richness
operation: 0 ≤ #30 ≤ 208
Adaptive richness
idle speed: 100 ≤ #31 ≤ 255 (K7M 720)
104 ≤ #31 ≤ 255 (K7M 702/703)
12-4

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 555 tracks
Injection Sequential regulated multipoint injection
Ignition Static with two dual output coils
Power module integral in computer
One pinking sensor
Plugs
EYQUEM C 52 LS
CHAMPION N7YCX
BOSCH W7DCOGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Air filter Replace every other oil change
Fuel filter Mounted in front of the fuel tank under the vehicle
Replace at major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: 80 litres/hour minimum for regulated
pressure of 3 bars and voltage of 12 V
Pressure regulator WEBER
BOSCHRegulated pressure
Zero vacuum: 3 ± 0.2 bars
Vacuum of 500 mbar : 2.5 ± 0.2 bars
Solenoid injector
SIEMENSVoltage: 12 V
Resistance: 14.5 ± 1 Ω
Throttle body SOLEX
Diameter 60 mmReference: 127 F3R 751 without AC - F3R 750
Reference: 132 F3R 751 AC
Idle speed regulation solenoid
HITACHI
AESP 207-17Voltage: 12 V
Resistance: 9.5 ± 1 Ω
Fuel vapour recirculation
canister
Solenoid valve
CAN 10
DELCO REMY
Voltage: 12 V
Resistance: 35 ± 5 Ω
Heated oxygen sensor
BOSCH LSH 25Voltage at 850°C
Rich mixture: > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding
FICHE n° 27
CODE D13
SELECTOR ON S8
Throttle potentiometer
Idle speed regulation: 8 ≤ #17 ≤ 38
Full load: 188 ≤ #17 ≤ 245
R.C.O. idle speed: 20 % ≤ #12 ≤ 40 % (F3R 750)
18 % ≤ #12 ≤ 38 % (F3R 751)
Adaptive R.C.O
idle speed: - 6.2 % or - 8.6 ≤ #21 ≤ + 6.2 %
Adaptive richness
operation: 82 ≤ #30 ≤ 224
Adaptive richness idle speed: 32 ≤ #31 ≤ 224
12-6

FUEL MIXTURE
Throttle body
12
E7J engine
REMOVAL
Remove the air filter.
Disconnect:
- connectors (A) (B) and (C),
- the fuel supply pipes (1) and return pipes (2),
- the accelerator control cable (3).
Remove the mounting bolts (4) and remove the
throttle body.
94544R
REFITTING
Replace the seals between the manifold and the
throttle body.
Reconnect:
- the fuel supply and return pipes, ensuring the
connectors are correctly clipped back together,
- the accelerator control and refit the air filter.
AIR TEMPERATURE SENSOR
REMOVAL
Remove the air filter.
Disconnect the connector.
Remove bolt (1) and lift cover (2).
Release the wires from mounting (3).
Remove the connector (4) after releasing hooks
(5).
94541R
REFITTING
Check the connectors are correctly clipped in.
12-8