roof RENAULT MEGANE SCENIC 1995 Service Repair Manual

98900-1R
IGNITION
Static ignition
17
The differences between static ignition with two
coils and distributed ignition are:
- the high voltage distributor is no longer used,
- two dual output coils are used.
PRESENTATION
The system comprises:
- the injection computer (the ignition power
stage is integrated into the computer),
- two dual output coils,
- four spark plugs,
- an anti-interference condenser.
DESCRIPTION - OPERATING PRINCIPLE
COMPUTER
The injection computer (120), depending on the
information received from various sensors, but
principally depending on the engine speed and
load, determines:
- the number of degrees of advance to be used
and consequently the ignition point,
- which cylinders are at TDC and consequently
the ignition coil to be operated.
The spark is created at the two cylinders at TDC by
cutting the earth to the coil concerned.
COILS
There are two coils. They are of the dual output
type.
They are controlled separately by the computer.
They create two sparks at the same time.They have a foolproofing device (K7M engine):
- on their base to prevent them being fitted in-
correctly to the rocker box cover,
- at the retaining clips for the high voltage
leads.
They are colour coded on the 3 track electrical
connectors.
Coil (2) has a black electrical connector. This coil
provides the sparks for cylinders 1 and 4 at the
same time. It is controlled by track 28 on the injec-
tion computer.
Coil (3) has a grey electrical connector. This coil
provides the sparks for cylinders 2 and 3 at the
same time. It is controlled by track 29 on the injec-
tion computer.
Both coils are connected to an anti-interference
condenser (1).
F3R engine
F3R - K7M
engines
17-2

INJECTION
Special notes on sequential injection
17
F3R engine
1.REMOVING THE CYLINDER REFERENCE
SENSOR
Disconnect the sensor
Remove:
- the cylinder reference sensor (A) (one bolt),
- the cover (B) (three bolts).
Target (C) is secured on the end of the camshaft
by a spring ring.
To release the target from the camshaft:
• Rest a copper hammer behind the target.
• Use a mallet to tap the hammer gently.
• Remove the target (C) and the plastic
protective cover (D).
IMPORTANT : the order of operations described
below MUST be observed. Not following the
method could cause incorrect operation and / or
damage to the sensor.
2.REFITTING THE CYLINDER REFERENCE SENSOR
Refit :
- the sensor to the cover, push it upwards and
tighten to a torque of 0.15 daN.m,
- the protective plastic cover,
- the target (this has a foolproofing device.
Check its position before fitting to the end of
the camshaft),
- the cover with the sensor. Tighten the three
cover bolts to a torque of 1 daN.m.3.
ADJUSTING THE SENSOR / TARGET GAP
Slacken the bolt mounting the sensor without
touching the sensor then retighten it to a torque
of 0.8 daN.m.
By slackening the bolt the sensor is released. A
spring in the cover pushes the sensor against the
target.
When the bolt is tightened the sensor is secured. It
has two small plastic pips which touch the target.
These pips wear as the engine turns. There is no
longer contact between the two components and
the gap is set.
17-22

84
CONTROLS - SIGNALS
Roof console switch

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Complete manual or electrohydraulic hood
Remove the rear connecting crossmember moun-
ting bolts (1).
RR R R
EE E E
MM M M
OO O O
VV V V
AA A A
LL L L
Before carrying out any work, protect the rear
wings.
Remove the seat cushion, the bench seat backrest
and the quarter light trims
52
PRE5201
12449
Place the hood in the neutral position (front sec-
tion beyond the pushing point), rear roof arch
vertical.
Immobilise the hood cover (electrohydraulic
hood).
12556R
52-1

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Complete manual or electrohydraulic hood
52
Remove:
- the third main bearing mounting bolt,
- the hood (2 people).
NN N N
OO O O
TT T T
EE E E
:: : :
do not loosen the main bearing backing
plate mounting bolts (B) (basic adjustment). Remove the upper main ram clamp (4).
Separate the main ram from the frame.
Fold the hood.
Remove the pin (5) then the clamp (6).
Separate the ram from the rear roof arch (electro-
hydraulic mechanism).
NN N N
OO O O
TT T T
EE E E
:: : :
for reasons of clarity, the main bearing has
been disengaged from the body.
12293R
12291R
12292R
52-3

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Complete manual or electrohydraulic hood
52
REFITTING
Fit the folded hood in its housing.
Secure the main bearing without tightening it.
Close and lock the hood.
Tighten the main bearing mounting bolts (3) to a
torque of 20 N.m.
Fold the hood.
Position the rear roof arch ram, secure it to the
clamp (6) and the pin (5) (electrohydraulic mecha-
nism).
Place the hood in the neutral position, rear roof
arch vertical.
Connect the hood microswitch wiring.
Fit the main ram and clamp it.
Position the connecting crossmember and tighten
the mounting bolts to a torque of 20 N.m.
Tighten the hydraulic unit bolt and operate the
electrohydraulic system several times (opening -
closing) in order to bleed the hydraulic circuit
(automatic bleeding).
52-4

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Front hood locks
52
12427R
Remove the bolts (1).
RR R R
EE E E
FF F F
II I I
TT T T
TT T T
II I I
NN N N
GG G G
Refit the locks.
RR R R
EE E E
FF F F
II I I
TT T T
TT T T
II I I
NN N N
GG G G
Refit the locking plate and tighten the mounting
bolts (2) 8 N.m.
Clip and clamp the front frame cover.
Secure the handle.
RR R R
EE E E
MM M M
OO O O
VV V V
AA A A
LL L L

OO O O
FF F F

TT T T
HH H H
EE E E

FF F F
RR R R
OO O O
NN N N
TT T T

LL L L
OO O O
CC C C
KK K K
SS S S
12434R
Remove the sun visors, the brackets.
Detach the roof console.
Detach the roof crossmember trim.
52-8

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Complete hydraulic system
52
Remove the rear roof arch ram pin (5) then the
clamp (6). Separate the ram. Remove:
- the main bearing mounting bolts (see section
52).
- the main ram upper clamp.
Separate the main ram from the frame.
Fold the hood.
Disconnect the hood microswitch wiring (left-
hand side)
Detach the hydraulic pipes.
Remove the main bearing mounting bolts.
Raise and immobilise the main bearings in order
to detach the hydraulic system clearance hole.
Remove:
- the electric relays bracket,
- the lower yoke nut (3),
- the ram.
12293R112291R
12289R
52-11

MECHANISMS OF OPENINGS OTHER THAN SIDE DOORS
Hydraulic system (pipes)
52
Diagram of fitting of pipes at the ram end
Pipe Piston rod Piston base end Rams
E X Hood cover
N X Hood cover
A X Left-hand main ram
W X Left-hand main ram
B X Right-hand main ram
X X Right-hand main ram
R X Left-hand rear roof arch
P X Left-hand rear roof arch
S X Right-hand rear roof
arch
O X Right-hand rear roof
arch
Tighten the pipe unions to a torque of 15 N.m.
Refit the pump bracket.
Clip the solenoid valve control connectors (1) and the pump wiring.
52-15

77 11 192 972FF F F
EE E E
BB B B
RR R R
UU U U
AA A A
RR R R
YY Y Y

11 1 1
99 9 9
99 9 9
77 7 7Edition Anglaise
"The repair methods given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The methods may be modified as a result of changes by the manufacturer in the
production of the various component units and accessories from which his vehicles
are constructed".All copyrights reserved by Renault.
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault.
CRenault 1997
Sealing and soundproofing
BODY SEALING