key RENAULT MEGANE SCENIC 1995 Service Repair Manual

TOP AND FRONT OF ENGINE
Timing belt
11 F3R ENGINE
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove:
- the computer and its mounting,
- the accessories belt in the following manner:
Slacken the tensioner (4) by the central bolt,
using a 7 mm allen key, by a quarter turn (cut
the end of the tool to approximately 12 mm)
while holding the outer nut with a 22 mm open
wrench.
Slackening the tensioner using the 22 mm wrench
automatically damages the adjustment teeth,
destroying the air conditioning and/or power as-
sisted steering mounting.
SPECIAL TOOLING REQUIRED
TIGHTENING TORQUES (in daN.m)
Wheel bolt 9
Crankshaft pulley bolt 12
Engine suspended mounting bolt 6
Cylinder head suspended mounting bolt 2
Engine suspended mounting cover bolt 4
Timing belt tensioner nut 4
Star socket ST X 14 FACOM for example
Engine support tool DESVIL M300 for example
97295R1
Remove:
- the front right hand wheel,
- the front right protector at the end of the
wheel arch,
98710R
Mot. 1054TDC pin
Mot. 1273 Tool for checking belt tension
Mot. 1289-03 Fork for centring suspended
mounting limiter
EQUIPMENT REQUIRED
11-4

TOP AND FRONT OF ENGINE
Cylinder head gasket
11 F3R ENGINE
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Drain the cooling circuit from the lower radiator
hose at the water pump end.
SPECIAL TOOLING REQUIRED
TIGHTENING TORQUES (in daN.m)
Front right suspended engine
mounting cover nut 3 to 4.5
Wheel bolt 9
Tensioner nut 4
Suspended engine mounting cover bolt 4
Suspended engine mounting limiter bolt 6
Crankshaft pulley 12
Bolt mounting suspended engine
mounting on cylinder head 2
EQUIPMENT REQUIRED
Allen key for cylinder head bolts ST 10L FACOM for example
Engine support tool DESVIL M300 for example
Star socket ST X 14 FACOM for example
Star shaped elbowed allen key T50 FACOM for example
Remove the 2 bolts (1) and slacken bolt (2) of the
coil mounting then slide it downwards.
98898R
Mot. 591-04 Angular wrench for tightening the cylinder head
Mot. 591-02 Index
Mot. 1054
TDC pin
Mot. 1159 Engine support tool
Mot. 1273 Tool for checking belt tension
Mot. 1289-03 Fork for centring the suspended engine mounting limiter
11-16

TOP AND FRONT OF ENGINE
Cylinder head gasket
11 F3R ENGINE
99028R
Remove:
- the throttle body,
- the fuel gallery.
Note : ensure that seals (13) do not fall off when
removing the pump, Diagram for drilling tool Mot. 1159 for use with
BA0X (diameter 10.5 mm).
Fit the bracket of tool Mot. 1159 under the water
pump.
99310R
99215R
Remove the engine support tool DESVIL M300 for
example.- the cylinder head bolts, using a 10 mm, long allen
key,
FACOM ST10L for example.
- the cylinder head.
11-19

FUEL SUPPLY
Fuel cut-out on impact
13
WIRING DIAGRAM
Key
120Injection computer
199Fuel pump
236Fuel pump relay
246Fuel shut off
927Inertia switch
PRJ99472
13-2

DIESEL EQUIPMENT
Special notes
13
2. Control by altimetric capsule
At altitude, when atmospheric pressure is
approximately 925 ± 20 mbars, the ALFB
solenoid valve is fed via a relay and the
altimetric capsule.
KEY
257Pre-heating unit
597Engine fuse box
711ALFB solenoid valve mounted on injection
pump
741Altimetric capsule
743Altimetric relayLOCATION
Altimetric capsule (741)
PRJ9925799334R
13-19

DIESEL EQUIPMENT
Pump
13
Fit the pump pulley retaining tool Mot. 1200. Remove:
- the fuel return pipe,
- the high pressure pipe using tool B.Vi. 868,
- the accelerator cable,
- the connections,
- the fast idle control,
- the four rear mounting bolts,
99333-1R
Remove the pump sprocket mounting nut.
Release the sprocket from the cone using tool
Mot. 1053 (fit two plastic clips before removing
the sprocket).
99333R
99336-1R
- the three injection pump mounting bolts; to
make removing the lower bolt easier, use tool
Mot. 909-02.
Remove the pump (retain the key from the drive
cone).
13-24

DIESEL EQUIPMENT
Pump
13
92600R2
BBOSCH pump
RLUCAS DIESEL pump
Ckeyway to be used
13-25

DIESEL EQUIPMENT
Pump
13
REFITTING (Special notes)
To facilitate refitting the lower injection pump
mounting bolt, remove the injector holder for
cylinder n° 4 (when refitting, the copper seal and
the flame arresting washer must be systematically
renewed).
Refitting is the reverse of removal.
IMPORTANT : depending on equipment, the
pump drive sprocket has a different position.
There are two position markers and two
differently aligned keyways.
Fit the pump ensuring the key fits into the
sprocket (reference C).
Tighten the pump mounting nut to the
recommended torque (see previous pages).
Carry out pump timing (see method below).
13-26

DIESEL EQUIPMENT
Pre-post-heating unit
13
DIAGRAM KEY
104Ignition switch
163Starter
171Air conditioning clutch
206Air conditioning trifunction pressure switch
247Instrument panel
251Bi-function coolant temperature switch
257Pre-heating unit
398EGR solenoid valve
412Fast idle solenoid valve (AC version)
597Engine fuse box
642AC / pre-heating separation diode
645Passenger compartment fuse box
680Pre-heating unit n° 1
681Pre-heating unit n° 2
682Pre-heating unit n° 3
683Pre-heating unit n° 4
711Diesel fuel pump
741Altimetric capsule
743Altimetric relay
777Power feed for fuse boxConnector (A)
+ Bat+ before ignition feed
Connector (B)
1Feed to heater plugs 1 and 3
2Feed to heater plugs 2 and 4
Connector (C)
A1 / S2Load dependence solenoid valve
control
A2 / PCLoad lever microswitch information
A3 / CTNCTN type sensor coolant temperature
information
B1/+APC+ after ignition feed
B2 / DEMStarter information
B3 / TemPre-heating warning light control (via
earth)
C1 / S1Not used
C2 / -Bat Earth
C3 / ClimFast idle solenoid valve control during
post-heating phase
92206-2R
IDENTIFICATION OF CONNECTORS
13-30

IGNITION
Static ignition
17
99365R
K7M engine
Electrical connector
Track Allocation
1+anti-interference
condenser
2 +after ignition
3 coil control via computer
Connector
Track number+-
123 Coil connector track identification
Inscription on connector
Test to be made
between tracksResistance
K7M engine F3R engine
1 - 2 0.5 Ω0.2 Ω
1 - 3 1 Ω1 Ω
2 - 3 1 Ω1 Ω
HT - HT10 kΩ8 kΩ
F3R - K7M
engines
DIAGRAM
PRJ99029
KEY TO COMPONENTS
120Injection computer
597Engine fuse box
663Dual output ignition coil for cylinders
1 and 4
664Dual output ignition coil for cylinders
2 and 3
679Anti-interference condenser, connected to
coil:
-664 for F3R engines
-663 for K7M engines (dotted line)
17-3