catalytic converter RENAULT MEGANE SCENIC 1995 Service Repair Manual

Page
COOLING
Specifications
Filling - bleeding
Checking
Radiator
Diagram
Exhaust
General
Catalytic converter
Exhaust pipe assembly
Fuel tank
Fuel tank
Filler neck
Gauge
Pump and sender unit
Engine suspension
Suspended engine mountings
Engine mounting pads19-1
19-2
19-3
19-4
19-6
19-12
19-15
19-16
19-19
19-23
19-25
19-26
19-29
19-32 COOLING - EXHAUST- FUEL TANK -
ENGINE SUSPENSION
1916-1
16-9 STARTING - CHARGING
Alternator
Starter motor
16
IGNITION - INJECTION
IGNITION
Power module
Static ignition
Spark plugs
Injection
General
Location of components
Special notes on semi-sequential
injection
Special notes on sequential injection
Injection fault warning light
Engine immobiliser function
Computer configuration as a
function of the gearbox type
17
14-1
14-9
14-13
14-19
14-21
14-22 ANTIPOLLUTION
Fuel vapour recirculation
Oil vapour rebreathing
Exhaust gas recirculation (EGR)
Catalytic converter
Catalytic converter - oxygen sensor
Test for the presence of lead
14
17-28
17-29
17-32
17-33
17-34
17-36
17-39 IGNITION - INJECTION
(continued)
Injection strategy / automatic
transmission
Injection strategy / air conditioning
Idle speed correction
Idle speed adaptive correction
Richness regulation
Adaptive richness correction
Operating wiring diagram
17
Page
17-1
17-2
17-5
17-6
17-12
17-17
17-19
17-24
17-25
17-26
Contents

ENGINE AND PERIPHERALS
Engine - Gearbox
10
E7J engine
Remove:
- the catalytic converter,
- the gearbox selector rod,
- the nuts (1) from the engine and gearbox
mountings,
- the nuts (2) engine tie-bar mounting,
PRJ1001
- the power assisted steering pipe mountings
from the gearbox,
98749R
Disconnect the reversing light.
Remove:
- the power assisted steering pump,
98747R
- the power assisted steering reservoir,
- the air filter,
- the accelerator cable from the throttle body,
- the clutch cable from the gearbox,
- hoses (4), (5), (6) and (7),
98711R
- the speedometer.
10-5

ENGINE AND PERIPHERALS
Engine - Gearbox
10
K7M engine
98749R
Remove:
- the heat shield from the exhaust manifold
- the catalytic converter,
- the gearbox selector rod,
- the nuts (1) from the engine and gearbox
mountings,
- the nuts (2) from the engine tie-bar mounting,
PRJ1001
- the power assisted steering pipe mountings
from the gearbox,
- the speedometer.
Disconnect the reversing light.
Remove:
- the acoustic tie-rod between the two shock
absorber turrets,
- the air filter,
- the accelerator cable from the throttle body,
- the clutch cable from the gearbox,
- the hoses (4), (5), (6), (7) and (8),
- the expansion bottle and secure it to the
wheelarch,
- the fuel supply and return pipes,
- the brake servo pipe,
- the absolute pressure sensor,
- the earth strap.
Disconnect:
- the power assisted steering and air
conditioning pressostats,
- the compressor supply and the fan unit
supply,
- the temperature switch sensor.
99167R
10-8

ENGINES AND PERIPHERALS
Engine and transmission assembly
10
E7J Engine
Remove the battery mounting bracket.
Disconnect the injection feed wire in the scuttle
panel as well as the starter motor feed.
98754R
Remove:
- the computer strap and secure it to the
engine,
- the wheels,
- the right hand and left hand mudguards,
98710R
- the brake calipers and secure them to the
body,
- catalytic converter,
- the two exhaust heat shields,
99612R
- the gear control on the gearbox side, turn it
over and secure to the exhaust pipe,
- the horn,
- the sub-frame-body tie rods,
- the front bumper.
PRJ1002
10-21

ENGINES AND PERIPHERALS
Engine and transmission assembly
10
K7M engine
/ AT
- the heat shield from the exhaust manifold,
- the catalytic converter (disconnect the oxygen
sensor) and attach the exhaust pipe to the
body,
- the horn,
- the tie rod between the shock absorber
turrets,
- the air filter,
- the earth strap,
- the absolute pressure sensor,
- the expansion bottle and attach it to the
engine.
Disconnect:
- the accelerator cable and the kickdown switch
connector,
- the brake servo pipe,
- the relay plate and the engine connection unit
connectors,
98756R2
- the automatic transmission computer
connector,
- the canister pipe.Remove the battery mounting bracket.
Disconnect:
- the injection feed wire in the scuttle panel
and the starter feed wire,
- the fuel supply and return pipes using tool
Mot. 1311-06, unclipping them from their
mounting,
99461R
- the heater hoses on the thermostat.
Unclip the radiator and hold it to one side by
attaching it to the engine.
10-25

ENGINE AND PERIPHERALS
Sump
10
SPECIAL TOOLING REQUIRED
T.Av. 476 Ball joint extractor
B.Vi. 31-01 Set of punches
EQUIPMENT REQUIRED
Engine support tool
(example : DESVIL M300)
Wheel bolt 9
Track rod end nut 3.5
Shock absorber base bolt 17
Engine tie bar bolt:
- on gearbox 6.5
- on sub-frame 7.5
Right hand engine mounting nut 4.5
Left hand gearbox mounting nut 4.5
Sump bolt 0.7 to 0.9
Oil pump bolt 2.5
Tie bar bolt on gearbox 2.5
Tie bar bolt on engine 5
TIGHTENING TORQUES (in daN.m)
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Drain the engine oil.
Remove:
- the catalytic converter,
- the front right hand wheel,
- the track rod end using tool
T.Av. 476,
- the upper shock absorber bolt and slacken the
lower bolt (do not remove it),
98746-1S
- the right hand driveshaft pin using tool B.Vi.
31-01, then tilt the hub to release the
driveshaft from the gearbox and attach it to
the steering,
- the engine - gearbox tie bar, E7J engine
10-43

ENGINE AND PERIPHERALS
Sump
10
SPECIAL TOOLING REQUIRED
B.Vi. 31-01 Set of punches
Mot. 453-01 Hose clamp pliers
Mot. 1311-06 Tool for removing fuel pipe
T.Av. 476 Ball joint extractor
Wheel bolt 9
Track rod nut 3.5
Shock absorber base bolt 17
Engine tie bar bolt:
- on gearbox 6.5
- on sub-frame 7.5
Right hand engine mounting nut 4.5
Left hand gearbox mounting nut 4.5
Sump bolt 0.7 to 0.9
Oil pump bolt 2.5
Tie bar bolt on gearbox 2.5
Tie bar bolt on engine 5
TIGHTENING TORQUES (in daN.m)
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the expansion bottle and position it
below the level of the upper radiator hose on the
thermostat.
Disconnect the upper radiator hose on the
thermostat and clamp it using tool Mot. 453-01.
98710R
Remove:
- the front wheels,
- the right hand mudguard,
- the catalytic converter (disconnect the oxygen
sensor connector),
- the gearbox control at the gearbox end. K7M engine
steel sump
EQUIPMENT REQUIRED
Engine support tool
(example : DESVIL M300)
10-48

FUEL MIXTURE
Specifications
12
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0E JB1 E7J 764 75.8 77 1 390 9.1/1 C44 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants **
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
E7J 764 750±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No.RENAULT No.
(G70*)
E7J 764 SIEMENS 35 tracks (FENIX 3) S 111 730 108 B 77 00 864 451 77 00 874 461
12-1

FUEL MIXTURE
Specifications
12
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0F Manual K7M 702 79.5 80.5 1598 9.7/1 C45 EU 96
BA0F
AutomaticK7M 703 79.5 80.5 1598 9.7/1 C45 EU 96
BA0L Manual K7M 720 79.5 80.5 1598 9/1 C45 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants**
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
K7M702
720720±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
K7M 703 750±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No. RENAULT No.
(G70*)
K7M 702 SIEMENS 55 tracks (FENIX 5) S 105 300 101 D 77 00 860 319 77 00 863 499
K7M 703 SIEMENS 55 tracks (FENIX 5) S 105 300 201 C 77 00 860 337 77 00 869 818
K7M 720 SIEMENS 55 tracks (FENIX 5) S 105 300 104 B 77 00 864 454 77 00 865 827
12-3

FUEL MIXTURE
Specifications
12
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0G Manual F3R 750 82.7 93 1998 9.8/1 C47 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants **
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
F3R 750 770±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No. RENAULT No.
(G70*)
F3R 750 SIEMENS 55 tracks (FENIX 5) S 103 717 101 B 77 00 868 299 77 00 874 462
12-5