RENAULT MEGANE SCENIC 1995 Service Repair Manual

GENERAL INFORMATION
Opening clearances
40
40-11

GENERAL INFORMATION
Opening clearances
40
40-12

GENERAL INFORMATION
Collision fault finding
40Collision fault finding
Before carrying out repairs to the bodywork of a car, even if the damage seems slight, it is
necessary to carry out a series of tests:

VISUAL INSPECTION
This inspection involves the examination of the sub-frame of the vehicle where mechanical
components are mounted and in the crumple zones or vulnerable areas in order to detect folds
where materials have been deformed.

TRAMMEL GAUGE CHECK
The visual inspection may be completed using a trammel gauge which will allow measurement
of certain deformations by symmetrical comparisons (for more detail on each point to check, see
the repair bench paragraph below).
NOTE: to make the marking easier, the reference points located on the left of the vehicle are
marked by a capital letter (e.g.: A) and the reference points opposite these with the same
function are shown by the same letter with an additional index (e.g.: A')

AXLE GEOMETRY CHECK
It is the only check which determines whether the impact suffered by the vehicle has or has not
affected its road holding.
Important: in borderline cases, it is essential not to neglect checking the axle assembly
components which may also have been damaged.
On principle, no welded component in the body shell may be replaced without ensuring that the
subframe was not affected by the impact.
40-13

GENERAL INFORMATION
Collision fault finding
40
40-14
GAUGE POINTS
Point M
Start point for checking points (A) and (B).
Point A
Sub-frame rear mounting.Point C
Front sub-frame front mounting.
It is necessary to remove the front bumper rear
protector and both horns to access this point.
Point H
Front end of front side member.
It is necessary to remove the engine undertray to
access this point.
16890R
16891R17512R
17512R1

GENERAL INFORMATION
Collision fault finding
40
40-15
Point B1
Rear axle assembly guide.
Point U
Rear end panel side end.
16887R1
18127R

GENERAL INFORMATION
Sub-frame dimensions
40Sub-frame dimensions
DESCRIPTION X Y Z DIAMETER ANGLE%
A Front sub-frame left hand rear mounting 203 - 402.5 71 16.5 0
A' Front sub-frame right hand rear mounting 203 402.5 71 16.5x18.5 0
B Rear axle left hand front mounting 1966 - 634.12 70 M12 0
B Rear axle right hand front mounting 1966 634.12 70 M12 0
B1 Rear axle assembly left hand guide 1916 - 634.1 70 18.5 0
B1' Rear axle assembly right hand guide 1916 634.1 70 18.5 0
C Front left sub-frame front mounting - 593 - 412 237.5 M10 0
C' Front sub-frame right hand front mounting - 593 412 237.5 M10 0
D Rear sub-frame left hand rear mounting 2710 - 470 227.5 M12 X: 1˚30
D' Rear sub-frame right hand rear mounting 2710 470 227.5 M12 X: 1˚30
F Left hand front shock absorber mounting support
(external)5.5 - 610.8 654.2 8.7X: 3˚45
Y: 7˚12
F'Right hand front shock absorber mounting support
(external)5.5 610.8 654.2 8.7X: 3˚45
Y: 7˚12
F1Left hand front shock absorber mounting support
(interior)15.7 - 477.8 636.7 8.7X: 3˚45
Y: 7˚12
F1'Right hand front shock absorber mounting support
(interior)15.7 477.8 636.7 8.7X: 3˚45
Y: 7˚12
G Left hand front side member rear end 880 - 369 7 18.5 X: 1˚
G' Right hand front side member rear end 880 369 7 18.5 X: 1˚
H Left hand front side member front end - 547.5 - 467.4 236.5 10.2x 12.5 0
H' Right hand front side member front end - 547.5 467.4 236.5 10.2x 12.5 0
J Left hand rear side member rear end 2938 - 485 231 16.5 0
J' Right hand rear side member rear end 2900 483 231 16.5 0
L Rear end panel cross member (left hand side) 3049 - 394.5 170 14.25X: 90˚
Y: 10˚15
L' Rear end panel cross member (right hand side) 3028 397 170 14.25X: 90˚
Y: 12˚30
M Cross member under centre floor (left hand side) 937 - 375 1.5 14.5 0
M' Cross member under centre floor (right hand side) 937 375 1.5 14.5 0
P Engine mounting - 247 483.5 514 M10 0
P1 Engine mounting (interior side) - 113 483.5 514 M10 0
P2 Engine mounting (exterior side) - 150 552.5 514 M10 0
S Left hand front driveshaft mounting 943 - 88.5 38 M8 X: 6˚
S' Right hand front driveshaft mounting 942.5 41.5 38 M8 X: 6˚
T Left hand rear driveshaft mounting 1697 - 72.5 1 M8 X: 3˚
T' Right hand rear driveshaft mounting 1699 57.5 1 M8 X: 3˚
U Rear end panel (left hand side) 3070 - 640 137.5 6.2 0
U' Rear end panel (right hand side) 3070 640 137.5 6.2 0
40-16

GENERAL INFORMATION
Sub-frame dimensions
40
40-17

GENERAL INFORMATION
Repair Bench
40
40-18
Repair Bench
I - PRINCIPLE REFERENCE POINTS FOR SETTING VEHICLE TRIM LEVEL
A - FRONT SUB-FRAME REAR MOUNTING
It is the main front reference point.
1 - Front mechanical units removed
NOTE:
on the left hand side the hole is round,
on the right hand side it is a slot.
When replacing the rear section of the side member,
this reference point is replaced provisionally by
point (M), located on the seat cross member, point (A)
being used to position the replaced component.2 - Front mechanical units in place
The bracket covers the sub-frame mounting bolt.
NOTE: the two sides are not symmetrical, on the right
hand side the mounting is set on the rubber mounting.
If the rear of the vehicle is being rebuilt, these two
points alone may be used to align and support the
front of the vehicle.
It may be used for a light rear impact without removing
the rear axle.
99249R116891R

GENERAL INFORMATION
Repair Bench
40
40-19
I - PRINCIPLE REFERENCE POINTS FOR SETTING VEHICLE TRIM LEVEL (cont.)
B - REAR SUB-FRAME FRONT MOUNTING
It is the main rear reference point.
1 - Front mechanical units removed
The bracket rests under the rear axle assembly
mounting unit and is centred in the sub-frame
mounting hole.
If replacing the complete rear side member or the rear
floor unit, this reference point is replaced by point (M),
located on the seat cross member, point (B) being
used to position the replaced component.2 - Front mechanical units in place
The bracket covers the sub-frame mounting bolt.
If the front section is being rebuilt, these two points
alone can be used to align and support the rear of the
vehicle.
99251R1
16887R2

GENERAL INFORMATION
Repair Bench
40
40-20
II - ADDITIONAL REFERENCE POINTS FOR SETTING VEHICLE TRIM LEVEL
These are the provisional reference points which replace the main points, when they have been affected by the
impact.
M - SUPPORT UNDER FRONT FLOOR
(seat cross member)
Point M is also used to position the replaced part.G - FRONT SIDE MEMBER REAR END
This point is also used as a positioning reference when
replacing a rear section of the front side member.
These points enable the vehicle to be supported in addition to the main reference point on the impact side and allow
only relatively accurate alignment of the vehicle.
IMPORTANT NOTE: these reference points should only be used in the cases mentioned above. They are not
required when both the main reference points (points A and B) are correct.
This additional reference function may also be filled by the front side member ends check points for a rear impact
and vice versa.
16890R16890R1