1995 RENAULT MEGANE SCENIC Fuel

DIESEL EQUIPMENT
Description of the pump
13
99337R2
1Load dependence control solenoid valve (ALFB)
2Fuel shut off solenoid
3Microswitch for cutting post-heating and exhaust gas recirculation (EGR)
4Air conditioning microswitch
5Residual flow stop screw (anti-stall)
6Maximum engine speed stop screw (no adjustment may be made except at a Renault Injection Centre)
7Normal idle speed adjustment stop screw
8Fast idle speed adjustment stop screw
9Coded solenoid valve electronic unit
13-16

DIESEL EQUIPMENT
Pump
13
SPECIAL TOOLING REQUIRED
B.Vi. 868 Wrench for removing high
pressure pipe
Mot. 909-02 12 sided wrench for removing
injection pump mounting
Mot. 997 Socket for removing injector
holder
Mot. 1053 Pump pulley extractor
Mot. 1054
TDC pin
Mot. 1200 Pump pulley retaining tool
REMOVAL
Battery disconnected, remove:
- the suspended engine mounting housing (1),
- the injection pump pulley housing (2).
DI1302-199183R
Immobilise the engine using tool Mot. 1054. To do
this, turn the engine so that the camshaft sprocket
index is aligned with the timing cover reference
mark.
Disconnect the fuel supply pipe at the injection
pump end.
13-23

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
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

DIESEL EQUIPMENT
Fuel filter
13
LOCATION
Principle of the electric heater
The heater has heated studs. They are ceramic,
made from barium titanate which has a positive
temperature coefficient, meaning that its
resistance increases as its temperature increases.
99332R
1Fuel filter
2Electric heater
3Hand priming unit
The electric diesel fuel heater and the thermostat
are integral in the head of the filter.
DIAGRAM
PRJ99258
449Electric heater
450Diesel heating relay
597Engine fuse box
645Passenger compartment fuse box Operating temperature
Electrical circuit closes: 0°C
Electrical circuit opens: from 8°C
Heater power: 150 W
13-37

99461R
DIESEL EQUIPMENT
Fuel filter
13
REMOVAL - REFITTING (Special notes)
To remove the filter assembly use tool Mot. 1311-
06 for the quick release unions.
When refitting, refit the quick release unions by
hand and ensure they click back together correctly
(two O rings ensure sealing).
99332S
13-38

ANTIPOLLUTION
Fuel vapour recirculation
14
E7J engine
CIRCUIT OPERATIONAL DIAGRAM
98170R
1Throttle body
2Canister bleed solenoid valve
3Canister
APipe from fuel tank for recirculation of fuel vapour
BBreather
CTake-off downstream of throttle
14-1

99232R
ANTIPOLLUTION
Fuel vapour recirculation
14
K7M engine
CIRCUIT OPERATIONAL DIAGRAM
1Inlet manifold
2Canister
3RCO control solenoid valve
4Fuel vapour recirculation pipe
5Oil vapour rebreathing pipe
6T piece connecting the oil vapour rebreathing pipe (5) and fuel vapour recirculation pipe (4)
7Oil vapour rebreathing and fuel vapour recirculation pipe
RPipe from fuel tank
MABreather opening
14-2