Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 466
2014 IMPREZA WRX STI SERVICE MANUAL
QUICK REFERENCE INDEX
FUJI HEAVY INDUSTRIES LTD.
G1180BE6
CHASSIS SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
TIRE PRESSURE MONITORING SYSTEM
(DIAGNOSTICS)
VEHICLE DYNAMICS CONTROL (VDC)
VEHICLE DYNAMICS CONTROL (VDC)
(DIAGNOSTICS)
FRONT SUSPENSION
FS
Page
General Description . . . . . . . . . . . . . . . . . . . . ...2
Wheel Alignment . . . . . . . . . . . . . . . . . . . . . . 8
Front Crossmember Support Plate . . . . . . . . . . . . . . ..16
Front Stabilizer . . . . . . . . . . . . . . . . . . . . . . .17
Front Ball Joint . . . . . . . . . . . . . . . . . . . . . . .18
Front Arm . . . . . . . . . . . . . . . . . . . . . . . . .20
Front Strut . . . . . . . . . . . . . . . . . . . . . . . . 24
Front Crossmember . . . . . . . . . . . . . . . . . . . . .27
General Diagnostic Table . . . . . . . . . . . . . . . . . . .28
FS-2
General Description
FRONT SUSPENSION
1. General Description
A: SPECIFICATION
NOTE:
• Front and rear toe-in and front camber can be adjusted. Adjust if the toe-in or camber tolerance exceeds
specifications.
• Other items indicated in the specifications is not equipped with adjustment mechanisms. If other items ex-
ceed specifications, check the suspension parts and connections for deformation. If defective, replace with
new parts.
Model
Except for STI model
STI model
Front
Wheel arch height
(Tolerance:
+12 mm
–24 mm
(
+0.47 in
–0.94 in
))
mm (in)
376 (14.8)
371 (14.6)
Camber (Tolerance: ±0°45′ Differences between RH and LH:
45′ or less)
–0°50′
–0°45′
Caster (Referential Value)
6°30′
6°30′
Steering angle (Tolerance: ±1.5°)
Inner wheel
36.6°
36.6°
Outer wheel
32.2°
32.2°
Toe-in
mm (in)
0±3 (0±0.12) Toe angle (sum of both wheels):
0°±0°15′
Kingpin angle (Referential Value)
15°15′
15°15′
Rear
Wheel arch height
(Tolerance:
+12 mm
–24 mm
(
+0.47 in
–0.94 in
))
mm (in)
370 (14.6)
365 (14.4)
Camber (Tolerance: ±0°45′ Differences between RH and LH:
45′ or less)
17-inch tire: –1°35′
–1°30′
Toe-in
mm (in)
0±3 (0±0.12) Toe angle (sum of both wheels):
0°±0°15′
Thrust angle (Tolerance: ±0°30′)
0°
(1) Front
A – B = Positive: Toe-in, Negative: Toe-out
α = Individual toe angles
B
A
(1)
FS-00269
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