power steering RENAULT MEGANE SCENIC 1995 Service Owner's Guide

PUMP
Mechanical power assisted steering pump
13
REPLACING THE PULLEY
REMOVAL
Remove the component by removing the three
bolts.
98829R
REFITTING
Refitting is the reverse of removal.
FILLING THE CIRCUIT
Oil grade to be used:
ELF RENAULTMATIC D2
orMOBILATF 220
Capacity : 1.1 litres
Fill the reservoir to the top.
Move the steering wheel gently in both
directions.
Top up the level.
Start the engine and move the steering wheel
gently from full lock to full lock.
Top up the level.
91662-1S
The oil should be visible to the level of the
MAXIMUM line.
13-42

PUMP
Mechanical power assisted steering pump
13
E and K engines
without AC
SPECIAL TOOLING REQUIRED
Mot. 453-01 Hose clamp pliers
REMOVAL
Slacken the tensioner nut and lock nut assembly
(A).
Release the two upper mounting bolts (B) and (C)
for the pump.
96047R
Remove bolt (D) using a half moon polygon
wrench.
Remove the belt.
Fit clamp Mot. 453-01 to the supply pipe.
Disconnect the supply and high pressure pipes.
Remove the upper pump mounting bolt (C).
Remove the pump.
96047-1R
REFITTING
Insert bolt (B).
Refit :
- the pump,
- the belt,
- the supply and high pressure pipes.
Remove clamp Mot. 453-01.
Adjust the belt tension (see section "Adjustment
values").
Fill and bleed the circuit by moving the steering
wheel gently from lock to lock.
13-43

PUMP
Mechanical power assisted steering pump
13
F8Q engine
with AC
SPECIAL TOOLING REQUIRED
Mot. 453-01 Hose clamp pliers
REMOVAL
Remove the belt (see corresponding section).
Fit clamp Mot. 453-01 to the supply pipe.
Remove:
- the pulley (three bolts),
- the wiring mounting and the high pressure
pipe by removing bolt (2),
99171R
99170R
REFITTING
Refitting is the reverse of removal.
99174-1R
- the supply pipe and the high pressure pipe,
- the three pump mounting bolts.
Remove the pump.
13-44

PUMP
Mechanical power assisted steering pump
13
F3R engine
with AC
SPECIAL TOOLING REQUIRED
Mot. 453-01 Hose clamp pliers
REMOVAL
Remove the belt (see corresponding section).
Fit clamp Mot. 453-01 to the supply pipe.
Remove:
- the pulley (three bolts),
- the wiring mounting,
- the supply pipe and the high pressure pipe,
99058S
- the three pump mounting bolts.
99502R
REFITTING
Refitting is the reverse of removal.
99502-1R1
Remove the pump.
13-45

PUMP
Mechanical power assisted steering pump
13
CHECKING THE OIL PRESSURE
SPECIAL TOOLING REQUIRED
Mot. 453-01 Hose clamp pliers
Dir. 1204 Pressure test union
Dir. 803 Metric thread union
Fre. 1085
or Pressure gauge
Fre. 244-03
Fre. 284-06 Connecting pipe
Fit clamp Mot. 453-01 to the low pressure pump
hose.
Disconnect the high pressure pipe (take
precautions to catch the oil which will run out).
Insert union Dir. 803 (metric thread) between the
pipe and the pump.
For engines where it is fitted, remove the
pressostat on the rigid pipe (high pressure).
Connect the pressure test union
Dir. 1204 and the oil pressure gauge
Fre. 1085 (or Fre. 244-03 + Fre. 284-06).
77840R1
Connect pressure gauge Fre. 1085 (or Fre. 244-03
+ Fre. 284-06).
Remove clamp Mot. 453-01.
Top up the pump level and run the engine to
check the pressure.
Wheels in straight line:
Regardless of engine speed, the pressure should
not exceed 5 to 7 bars.
Full lock to one side:
Hold the steering at full lock, the maximum
pressure should be 79 to 86 bars.
This operation should not be prolonged to avoid a
high increase in the oil temperature.
Remove union Dir. 803 and pressure gauge
Fre. 1085 or Fre. 244-03 , cutting the supply to the
pump with clamp Mot. 453-01.
Reconnect the high pressure pipe and remove
clamp Mot. 453-01.
Top up the oil in the reservoir.
13-46

STARTING - CHARGING
Alternator
16
- the alternator drive belt, together with bolt (3)
and shaft (4), removing through opening (5),
REMOVAL
With the vehicle on a 2 post lift, disconnect:
- the battery,
- the alternator electrical connections.
Remove:
- the power assisted steering belt by slackening
the three bolts (1) and the nuts (2) for the ten-
sioner, E 7 J and
K 7 M engines
SPECIAL TOOLING REQUIRED
Mot. 1273 Tool for testing belt tension
T. Av. 476 Ball joint extractor
Upper shock absorber mounting bolt 3
Track rod end nut 3.5
Wheel bolts 9
TIGHTENING TORQUES (in daN.m)
98747R198745R2
- the front right hand wheel,
- the track rod end (6) using tool T. Av. 476,
98712R
16-3

STARTING - CHARGING
Alternator
16
REMOVAL
(there are no special notes for engines fitted with
power assisted steering)
To release the alternator shaft the following must
be removed:
- the mounting bolts (1) for the coils,
- the two bolts (2) from the coil mounting.
Slacken bolt (3) then slide the mounting down.
98899R1
REFITTING
Refitting is the reverse of removal. F 3 R engine
16-5

SPECIAL NOTES FOR BOSCH MONOPOINT INJECTION
• Use the XR25 with the latest cassette and fiche n° 28.
Read the computer Part Number using code G70*.
Erase the memory using code G0**.
• Injection warning light operational (see principle of ignition section).
• Maximum engine speed before ignition cut-out: 6 500 rpm.
• Corrected idle speed after operation of the air conditioning: 900 rpm.
• Corrected idle speed with wheels at full lock (power assisted steering pressostat information) : 825 rpm.
• Canister bleed solenoid valve controlled by RCO signal depending on engine operating conditions (the
valve is not operated for no load).
• If there is a fault with the absolute pressure sensor, the manifold pressure is recreated depending on the
throttle position and the engine speed.
• Reading of the default values from the air temperature sensor (#03) or coolant temperature sensor (#02),
not the values taken in defect mode by the computer when they are recognised as being faulty.
• There is a+after ignition input (track 30) to inform the computer that the ignition has been turned off
while it remains fed for a few seconds to reposition the idle speed micromotor.
(Avoids false detection of a fault in the engine immobiliser system).
INJECTION
General
17
E7J engine
FITTING A 2ND GENERATION ENGINE IMMOBILISER REQUIRES A SPECIAL PROCEDURE FOR REPLACING THE
COMPUTER.
17-6

INJECTION
General
17
K7M engine
SPECIAL NOTES FOR MULTIPOINT INJECTION
•55 track SIEMENS FENIX 5 computer.
•Semi-sequential multipoint injection. Injectors controlled in pairs (injectors for cylinders 1 and 4 then
injectors for cylinders 2 and 3).
•Static ignition with two coils.
•Canister bleed solenoid controlled by RCO signal.
•EGR solenoid valve controlled by RCO signal (K7M 703).
•Idle speed correction depending on:
- air conditioning,
- heated windscreen,
- power assisted steering pressostat.
•Injection warning light on instrument panel operational.
•Use fault finding fiche N° 27.
FITTING A 2ND GENERATION ENGINE IMMOBILISER REQUIRES A SPECIAL PROCEDURE FOR REPLACING THE
COMPUTER.
17-8

INJECTION
General
17
K7M engine
1Injection computer
2Pinking sensor
3Coolant temperature sensor
4TDC sensor
5Fuel vapour recirculation solenoid valve
7Idle speed regulation stepping motor
8Throttle position potentiometer
9Air temperature sensor
10Absolute pressure sensor
11Canister
12Coil for cylinders 1 - 4
13Coil for cylinders 2 - 3
14Fuel pump relay
15Anti-interference condenser
16Air filter
17Oxygen sensor
18Power assisted steering pressostat
19EGR solenoid valve
20Vacuum reservoir
21EGR air filter
LOCATION OF COMPONENTS
17-9