1995 RENAULT MEGANE SCENIC Fuel

99239R
FUEL MIXTURE
Throttle body
12
Disconnect :
- the accelerator cable (4),
- the oil vapour rebreathing pipe (5),
- the two water hoses (6) which heat the
throttle body after clamping them using tool
Mot. 453-01.
Remove the four mounting bolts for the throttle
body and remove it.
Remove the heat shield between the throttle
body and the manifold. Throttle body mounting bolt
on inlet manifold 2
Throttle potentiometer mounting bolt 0.2
TIGHTENING TORQUES (in daN.m)
REMOVAL
Disconnect the battery.
Remove the three bolts mounting the unit to the
air filter.
99213R
Disconnect:
- the air temperature sensor (1),
- the throttle position potentiometer (8).
Slacken the clip mounting the air sleeve (2) to the
throttle body.
99238R
F3R engine
Remove the air filter and the air sleeve.
12-13

FUEL MIXTURE
Throttle body
12
NOTE : the throttle position potentiometer (7)
may only be removed after removing the throttle
body (non-adjustable).
99223R
REFITTING
Remove the seals bonded on the heat shield for
the throttle body and renew them (it is not
necessary to bond them into position again).
Refitting is then the reverse of removal. F3R engine
12-14

FUEL MIXTURE
Inlet manifold
12
E7J engine
Manifold nuts 2.5
TIGHTENING TORQUES (in daN.m)
REMOVAL
To remove the manifold, the throttle body must
be removed (see previous pages).
There are no special notes for removal.
The inlet manifold is fitted with an electrical
heater (2) with a PTC type resistance (positive
temperature coefficient).
This is mounted in the inlet manifold, opposite
the throttle, and is secured by a circlip.
The heater is fed via a relay by the computer up to
a coolant temperature of 68°C.
If the coolant temperature sensor is faulty, the
heater is permanently fed.
PRM1202
1Retaining circlip.
2 Electrical heater.
3Seal.
REFITTING
When refitting, replace the manifold gasket and
bleed the cooling circuit.
12-15

FUEL MIXTURE
Inlet manifold
12
K7M engine
EGR solenoid valve mounting bolt 1
Inlet manifold bolt and nut 2.5
EGR steel pipe bolt 1
TIGHTENING TORQUES (in daN.m)
NOTE : the fuel gallery must be removed
beforehand (refer to section 13 "Fuel gallery").
REMOVAL
Disconnect the air temperature sensor (1).
Slacken the two clips (2) mounting the air sleeve
to the throttle body and the air filter and remove
the sleeve.
99359R1
99357R
K7M 703 engine
From the EGR solenoid valve, disconnect (8) :
- the hose (9) going to the manifold,
- the electrical connector (10).
Remove the 2 bolts mounting the solenoid valve
(8), then remove the valve.
99358R
Disconnect:
- the accelerator cable (5),
- the throttle position potentiometer connector
(6),
- the idle speed regulation stepping motor
connector (7).
12-16

FUEL MIXTURE
Inlet manifold
12
K7M engine
Unscrew the steel pipe (11) which goes to the
manifold from the EGR solenoid valve mounting
(release the clip first).
All engine types
Remove the two bolts from under the manifold
which mount the wiring retaining bracket.
99460R
From the manifold, disconnect:
- the pipe (12) connected to the absolute
pressure sensor,
- the pipe (13) connected to the brake servo,
- the fuel supply and return pipes.
Disconnect the two hoses from the canister bleed
solenoid valve (14).
Remove the four lower mounting nuts then the
five upper mounting bolts.
99371R
Remove the manifold.
REFITTING
Renew all gaskets and seals which have been
removed.
Refitting is the reverse of removal.
Remember to reclip the clip mounting the EGR
pipe.
12-17

FUEL MIXTURE
Exhaust manifold
12
E7J engine
Manifold nuts 2
TIGHTENING TORQUES (in daN.m)
REMOVAL
After removing the heat shield from the manifold,
remove the mountings.
99093R
99092S
REFITTING
Renew the gasket systematically.
12-18

FUEL MIXTURE
Exhaust manifold
12
K7M engine
Manifold mounting nut 2
EGR steel pipe bolt 1
TIGHTENING TORQUES (in daN.m)
REMOVAL
Remove the heat shield.
99355R
Remove:
- the two nuts (1) connecting the exhaust
manifold to the exhaust downpipe,
- nut (2) for the steel pipe connecting the EGR
solenoid valve and the manifold; first remove
clips (3) (K7M 703),
- the seven nuts mounting the manifold.
99356R
Remove the exhaust manifold.
REFITTING
Renew the manifold gasket.
Refitting is the reverse of removal.
12-19

FUEL MIXTURE
Manifolds
12
F3R engine
Throttle body mounting bolt
on manifold 2
Manifold mounting nut on cylinder head 2
Manifold mounting stud on cylinder head 1
Strengthening bracket mounting
bolt on exhaust manifold 4
TIGHTENING TORQUES (in daN.m)
NOTE : the fuel gallery must be removed
beforehand (refer to section 13 "Fuel gallery").
The inlet manifold may be removed by itself, but
removing the exhaust manifold requires the inlet
manifold to be removed.
If the manifold gasket is renewed, both manifolds
must be removed.
99229-2R
From below the vehicle:
Use rope to attach the exhaust chamber to the
body.
Remove:
- the 2 mounting bolts (2) securing the
downpipe to the exhaust manifold,
- bolt (3) securing the exhaust manifold to the
strengthening bracket.
99228R
REMOVAL
Put the vehicle on a 2 post lift.
From above the vehicle:
Remove the upper and lower mounting nuts (1)
for the inlet manifold (the 2 nuts (B) at each end
only secure the exhaust manifold).
Remove the inlet manifold.
12-20