1995 RENAULT MEGANE SCENIC heating

Contents
Consumables
Identification
Oil consumption
Oil pressure
Engine - Gearbox
Engine and transmission assembly
Sump10-1
10-1
10-2
10-3
10-4
10-19
10-43
TOP AND FRONT OF ENGINE
Timing belt
Cylinder head gasketPage Page
11
Engine and
peripherals
11-1
11-12 ENGINE AND PERIPHERALS
10FUEL SUPPLY - PUMPS -
PREHEATING
Fuel supply
Fuel cut-out on impact
Fuel gallery
Injectors
Fuel filter
Pump flow
Supply pressure
Diesel equipment
Specifications
Description of the pump
Tightening torques (in daN.m)
Special notes
Idle speed settings
Microswitches
Pump
Pump - timing
Coded solenoid valve
Operating diagram
Pre-post-heating unit
Injector holder - heater plug
Fuel filter
Coolant temperature sensor
Inlet - exhaust manifolds
Pump
Brake assistance vacuum pump
Mechanical power assisted steering
pump13-1
13-3
13-8
13-9
13-10
13-11
13-15
13-16
13-17
13-18
13-20
13-22
13-23
13-27
13-28
13-29
13-30
13-36
13-37
13-39
13-40
13-41
13-4213
FUEL MIXTURE
Specifications
Throttle body
Inlet manifold
Exhaust manifold
Manifolds12-1
12-7
12-15
12-18
12-2012

ENGINE AND PERIPHERALS
Engine - Gearbox
10
F (E) engine
Right hand side of the vehicle
Remove the pins from the right hand driveshaft
using tool B.Vi. 31-01.
Remove:
- the track rod end using tool T.Av. 476,
- the upper shock absorber bolt and slacken the
nut on the lower bolt without removing it.
Remove the driveshaft from the gearbox.
Remove:
- the exhaust downpipe,
- the gearbox selector rod,
- the power assisted steering pipe mountings
on the gearbox. Left hand side of the vehicle
Remove:
- track rod end using tool T.Av. 476,
- the three bolts for the driveshaft gaiter,
- the two bolts from the shock absorber base,
- the two bolts from the brake caliper then
secure it to the shock absorber spring,
- the bolt from the lower ball joint,
- the complete hub assembly and the
driveshaft.
98749R
Unclip the reversing light wiring loom from the
sub-frame.
98898R
Drain the cooling circuit through the lower
radiator hose at the water pump end.
Remove:
- the air filter as well as the sleeve and its
mounting,
- the tie-bar between the shock absorber
turrets,
- the accelerator and clutch cables,
- the brake servo pipe,
- the two heating hoses,
- the lower expansion bottle hose,
- hoses (1), (2) and (3),
99222R1
10-11

ENGINE AND PERIPHERALS
Engine - Gearbox
10
F8Q engine
- the air inlet sleeve, the air filter and its
mounting,
- the cooling assembly (see section 19
"Radiator"),
- the alternator belt (see section 16
"Alternator").
Disconnect the compressor feed wire (if fitted).
Remove:
- the compressor mounting bolts (if fitted) and
secure it to the front cross member,
- the power assisted steering pump pulley,
- the oil filter,
- the power assisted steering pump mounting
bolts as well as the power assisted steering
pipe bracket bolt.
Move the pump away and secure it to the sub-
frame.
Disconnect:
- the heating hoses on the thermostat
mounting,
98904R1
- the preheating unit (secure it to the engine),
- the accelerator and clutch cables,
- the altimetric sensor corrector,
- the relay plate and the engine connection unit
electrical connector,
- the fuel supply pipe on the diesel filter using
tool Mot. 1311-06,
98756R
99461R
- the connector on the diesel filter. - the brake servo pipe,
- the pipes and connectors on the fast idle and
EGR solenoid valves,
10-15

ENGINE AND PERIPHERALS
Engine - Gearbox
10
F8Q engine
Remove:
- the diesel return union on the injection pump,
- the earth strap,
- the tie-rod between the shock absorber
turrets,
- the battery mounting bracket.
Disconnect the feed wire from the preheating
unit in the scuttle panel as well as the starter
motor feed.
98754R
Left hand side of the vehicle
Remove:
- track rod end using tool T.Av. 476,
- the three bolts for the driveshaft gaiter,
- the two bolts from the shock absorber base,
- the two bolts from the brake caliper then
secure it to the shock absorber spring,
- the bolt from the lower ball joint,
- the complete hub assembly and the
driveshaft.Right hand side of the vehicle
Remove:
- the pins from the driveshaft using tool
B.Vi.
31-01,
- the upper bolt from the shock absorber base
and slacken the lower bolt.
Tilt the stub axle carrier and release the
driveshaft.
Remove:
- the exhaust pipe,
- the gear control on the gearbox side,
- the power assisted steering pipe mountings
from the gearbox,
98749R
10-16

ENGINES AND PERIPHERALS
Engine and transmission assembly
10
E7J Engine
SPECIAL NOTES FOR VEHICLES FITTED WITH A
DRIVER’S AIRBAG
IMPORTANT
To avoid any risks of destroying the rotary switch
under the steering wheel, comply with the
following instructions:
• Before removing the steering column and the
rack, the steering wheel MUST be immobilised
with the wheels straight using a "steering
wheel locking" tool, throughout the whole
operation.
• Any doubts about whether the steering wheel
is centred means that the steering wheel will
have to be removed so that the centring
method described in section 88 "Airbag" can
be applied.
REMINDER: in this case, only qualified, trained
staff can carry out this operation.
Remove:
- the expansion bottle (secure it to the engine),
- the upper right hand mounting bracket of the
radiator and unclip it (left hand side), then
keep it to one side by securing it to the
engine.
98753R
Disconnect:
- the heating hoses on the engine,
98711R1
98714R1
- the fuel, absolute pressure and canister pipes,
- the brake servo pipe.
10-20

ENGINES AND PERIPHERALS
Engine and transmission assembly
10
F8Q engine
Remove:
- the preheating unit (attach it to the engine),
- the fuel return union on the injection pump.
Disconnect:
- the fuel supply pipe on the diesel fuel filter
using tool Mot. 1311-06,
99461R
- the altimetric sensor connector,
- the relay plate and the engine connection unit
electrical connector,
98756R
- the feed wire for the preheating unit in the
scuttle panel and the starter feed.
98754R
- the heater hoses on the thermostat mounting,
98904R1
10-38

DIESEL EQUIPMENT
Specifications
13
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0U JB3 F8Q 620 80 93 1 870 21.5/1 None EU93
BA0A JB3 F8Q 620 80 93 1 870 21.5/1 C25 EU96
ENGINE SPEED (rpm.)
Idle speed Maximum no loadMaximum with
load
SMOKE OPACITY
Homologation value Legal maximum
825 ± 25 5 200 ± 100 4 600 ± 100 1.24 m
-1 (40 %) 2 m -1 (55 %)
DESCRIPTION MAKE /TYPE SPECIAL NOTES
Injection pump
Pumps R598-2 and R598-3 differ
in that a coded fuel shut off
valve has been addedBOSCH
VE 4/8F 2300R598
VE 4/8F 2300R 598-1*
VE 4/8F 2300R 598-2
VE 4/8F 2300R 598-3*Rotary pump with:
- separate idle lever
- solenoid controlled load dependence (ALFB)
- post-heating and EGR cut-out microswitch
- air conditioning cut-out microswitch*
Pump timing obtained by 8mm
diameter TDC pin (Mot. 1079)Pump piston lift: 0.82 ± 0.04 mm
(the setting value is stamped on the load lever)
Injector holders
BOSCH KCA 17 S 42Tightening torque : 7 daN.m
Injectors BOSCH
DNOSD 302 Test: 130 bars
Maximum gap: 8 bars
Fuel filter
PURFLUXPriming pump
The filter is fitted with an electrical fuel heater
EGR solenoid valve Voltage: 12 volts
Resistance : 10 ± 5 Ω
Fuel pipes External diameter : 6 mm
Internal diameter : 2.5 mm
Length: 400 mm
Pre-heating unit
NAGARESWith pre-post-heating function and cold start
functions and fast idle solenoid
Heater plugs BOSCH Current: 15 A approximately after 8 seconds
heating
Tightening torque : 2 daN.m
+8
- 5
13-15

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