Downloaded from www.Manualslib.com manuals search engine ENGINE AND PERIPHERALS
Engine and transmission assembly
10
10-3
Engine and transmission assembly
SPECIAL TOOLING REQUIRED
Mot. 1040-01 Dummy sub-frame for removing
and refitting engine and
transmission assembly
Mot. 1159 Tool for maintaining engine on
subframe
Mot. 1202-01
Hose clip pliers
Mot. 1202-02
Mot. 1233-01 Threaded rods for lowering the
sub-frame
Mot. 1294-01 Tool for removing windscreen
wiper arms
Mot. 1448 Long nose pliers for hose clips
Mot. 1453 Engine support tool
REMOVAL
Put the vehicle on a two post lift.
During this operation, it is necessary to secure the
vehicle to the lift using a strap to prevent the vehicle
from losing balance.
See Technical Note 2988A for the procedure for fitting
the strap. TIGHTENING TORQUES (n daN.m)
Sub-frame front mounting bolts 6.2
Sub-frame rear mounting bolts 10.5
Mounting bolt for front right suspended
mounting cover to engine 6.2
Movement limiter mounting bolt 6.2
Mounting nut for rubber engine mounting
pad on front left-hand side member support 6.2
Shock absorber base bolts 18
Brake caliper mounting bolt 4
Steering shaft yoke mounting bolt 3
Sub-frame - side member tie rod bolts 3
Wheel bolts 9
14893S
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Engine and transmission assembly
10
10-4
Remove:
– the battery,
– the engine undertray.
Drain:
– the cooling circuit through the bottom hose of the
radiator,
– the gearbox and the engine (if necessary),
– the refrigerant circuit (if fitted) using filling equipment.
Remove:
– the front wheels along with the mudguard,
– the sub-frame and body tie rods,
– the track rod ends,
– the brake calipers (as well as the ABS sensors, if
fitted) and secure them to the suspension springs,
– the shock absorber base bolts,
– the heat shield (A) as well as the gearbox control,
– the clip (1) of the catalytic converter and secure this
to the body.
– the front bumper,
– the horn,
– the two mountings for power assisted steering
hoses on the right hand side of the sub-frame,
– the nut and the eccentric bolt of the steering shaft
yoke, after pushing back the guard.SPECIAL NOTES FOR VEHICLES FITTED WITH A
DRIVER'S AIRBAG
Remove (for the Scénic):
– the windscreen wiper arms using tool Elé. 1294-01,
– the front grilles,
16663R1
WARNING
In order to eliminate any risk of damaging the
rotary switch under the steering wheel, observe
the recommendations below:
!Before the steering column and the steering
rack are uncoupled, the steering wheel MUST
be immobilised with the wheels straight for the
duration of the operation using a "steering
wheel locking tool".
!If there is any doubt regarding the correct
alignment of the rotary switch, the steering
wheel must be removed so that the alignment
procedure described in the "AIRBAG" section
can be applied.
REMINDER: in this case, only qualified
personnel who have received training may carry
out the operation.
11020R
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Sump
10
10-8
Sump
SPECIAL TOOLING REQUIRED
Mot. 1233-01 Threaded rods for lowering the
sub-frame
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the engine.
Remove:
– the front wheels as well as the right hand mudguard
and the lower clip of the left hand mudguard,
– the nut and the eccentric bolt of the steering shaft
yoke, after pushing back the guard.Remove:
– the lower ball joint mountings as well as the track rod
ends,
– the sub-frame and body tie rods,
– the gear control on the gearbox side,
– the horn,
– the bolt (1), and slacken engine tie-bar bolt (2),
without removing it,
– the bottom mountings of the bumper, TIGHTENING TORQUES (n daN.m)
Sub-frame front mounting bolts 6.2
Sub-frame rear mounting bolts 10.5
Sump bolts 1.5
Steering shaft yoke mounting bolt 3
Lower ball joint mounting bolt 6
Engine tie bar bolt 6.2
Sub-frame - side member tie rod bolts 3
Wheel bolts 9
WARNING
In order to eliminate any risk of damaging the
rotary switch under the steering wheel, observe
the recommendations below:
!Before the steering column and the steering
rack are uncoupled, the steering wheel MUST
be immobilised with the wheels straight for the
duration of the operation using a "steering
wheel locking tool".
!If there is any doubt regarding the correct
alignment of the rotary switch, the steering
wheel must be removed so that the alignment
procedure described in the "AIRBAG" section
can be applied.
REMINDER: in this case, only qualified
personnel who have received training may carry
out the operation.
17518R3
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Timing belt
11
11 - 1
111TOP AND FRONT OF ENGINE
Timing belt
SPECIAL TOOLING REQUIRED
Mot. 1054 TDC setting pin
Mot. 1387 Tool for checking the automatic
tensioner centreline
Mot. 1453 Engine support tool
Mot. 1505 Tool for measuring belt tension
Mot. 1543 Timing belt pretensioning torque
tool
Mot. 1294-01 Tool for removing windscreen
wiper arms
ESSENTIAL SPECIAL TOOLING
14 torx socket
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove (for the SCENIC):
– the windscreen wiper arms,
– the front grilles,– the closure panel of the plenum chamber.
Remove (all types):
– the engine cover,
– the front right wheel as well as the mudguard,
– the accessories belt,
– the crankshaft accessories pulley. TIGHTENING TORQUES (in daN.m and/or ˚)
Tension roller nut 5
Crankshaft pulley bolt 2 + 115˚ ± 15˚
Suspended mounting limiter bolt 6.2
Suspended mounting cover bolt 6.2
Wheel bolts 9
11020R
11036R2
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Cylinder head gasket
11
11 - 6
Cylinder head gasket
SPECIAL TOOLING REQUIRED
Mot. 251 -01 Dial gauge support
Mot. 252 -01 Pressure plate to measure
piston protrusion
Mot. 1054 TDC setting pin
Mot. 1159 Tool for holding engine on
subframe
Mot. 1202 -01
Hose clip pliers
Mot. 1202-02
Mot. 1387 Tool for checking the automatic
tensioner centreline
Mot. 1448 Long nose pliers for hose clips
Mot. 1453 Engine support
Mot. 1505 Tool for measuring belt tension
Mot. 1453 Timing belt pretensioning
torque tool
ESSENTIAL SPECIAL TOOLING
Cylinder head testing equipment
14 torx socket
Angular tightening wrench
55 torx socket
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Remove:
– the timing belt (see method described in section 11,
"Timing belt").
– the two PAS pipe mountings on the right hand sub-
frame. TIGHTENING TORQUES (in daN.m and/or ˚)
Tension roller nut 5
Crankshaft pulley bolt 2 + 115˚ ± 15˚
Suspended mounting cover bolt 6.2
Suspended mounting limiter bolt 6.2
Torque reaction arm 6.2
Wheel bolts 9
Downloaded from www.Manualslib.com manuals search engine TURBOCHARGING
Air-air exchanger
12
12-7
Air-air exchanger
REMOVAL
It is necessary to remove the bumper to access the air-
air exchanger.
To do this, remove:
– the two upper side mounting bolts (A) (torx 20) and
the lower side mounting bolt (B) (torx 20) from the
front section of the front wing inner protector,
– the three mounting clips (C),
– the mounting clip (D) and separate the front section
of the right and left wing protector.If the vehicle is fitted with fog lights.
Disconnect:
– the battery,
– the fog light wiring harness connector (E) located in
the front section of the left-hand front wheel arch.
Remove:
– the upper side mounting bolt (F) on the bumper (on
each side),
– the two front engine underbody mounting bolts,
98710R2
99184R
99147R
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Alternator
16
16-2
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect the battery as well as all electrical
connections on the alternator.
Separate the diesel filter from its mounting and
remove.
Unclip the power steering reservoir.
Release the air conditioning pipe at (A).
Remove:
– the wiring mounting support (1) and remove the unit,
– the front right wheel as well as the mudguard,
– the accessories belt.Special features of vehicles fitted with air
conditioning:
Before removing the accessories belt, check the
centreline of the automatic tensioner (see
section 07 "Accessories belt tension").
Loosen bolt (A), then bolt (B) until the shoulder is
exceeded while holding the automatic tensioner plate
using a 9.35 mm square, then relax the belt by moving
the ratchet in the direction of the arrow.
Remove:
– the bolts (A) and (B),
– the alternator mountings and remove the alternator. SPECIAL TOOLING REQUIRED
Mot. 1273 Tool for checking belt tension
16870R4
98837-1R4
Downloaded from www.Manualslib.com manuals search engine COOLING SYSTEM
Water pump
19
19-5
Water pump
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the engine undertray.
Drain the cooling circuit through the lower radiator
hose.
Unclip the diesel filter and remove it.
Remove:
– the front right wheel along with the mudguard,
– the style cover,
– the accessories belt (see Section 07 "Accessories
belt tension"),
– the coolant pump and power assisted steering pump
pulleys,
– the water pump.Cleaning
It is very important not to scratch the gasket faces.
Use the Décapjoint product to dissolve any part of the
gasket which remains attached.
Wear gloves whilst carrying out the following
operation.
– Apply the product to the parts to be cleaned; wait
about ten minutes, then remove it using a wooden
spatula.
Do not allow this agent to drip on to the paintwork.
REFITTING
Refit:
– the water pump (fitted with a new gasket), tightening
the bolts to a torque of 1.7 daN.m,
– the accessories belt and tension it (see section 07
"Accessories belt tension").
Fill and bleed the cooling circuit, (see section 19
"Filling and Bleeding"). SPECIAL TOOLING REQUIRED
Mot. 1202 -01
Hose clip pliers
Mot. 1202 -02
Mot. 1448 Long nose pliers for hose clips
TIGHTENING TORQUES (in daN.m)
Water pump bolts 1.7