Mazda CX-5 Service & Repair Manual: Ultra High Tension Steel [Construction]
Characteristics of Ultra High-Tensile Steel Plates
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Ultra high-tensile steel plates have enhanced tensile strength compared to previous high-tensile steel plates.
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Because the strength is maintained even though the plates are thin-walled, the ultra high-tensile steel plates are used for the frames and the main frame parts which form the cabin, reducing the weight of the vehicle.
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Enhanced shock absorption has improved the safety.
Range of Use and Cautions for Service
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Because the ultra high-tensile steel is hard and it may be difficult to reform, when extracting the damaged part using a frame repair machine, perform the work verifying that other parts are not affected.
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When drilling welded parts, use a well-ground drill bit.
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After welding, inspect the weld strength. If adhesion is poor, perform arc welding (plug welding).
|
NO.
|
Part Name
|
Strength (MPa)
|
|
1 |
Bumper bracket |
590 |
|
2 |
Front side frame (outer, rear) |
590 |
|
3 |
Front side frame (inner, rear) |
590 |
|
4 |
Apron reinforcement No.3 |
590 |
|
5 |
Front frame (rear) |
590 |
|
6 |
Inner front pillar |
780 |
|
7 |
Inner hinge pillar |
590 |
|
8 |
Roof rail (inner) |
590 |
|
9 |
Roof rail reinforcement |
780 |
|
10 |
Front pillar reinforcement |
590 |
|
11 |
Hinge reinforcement (upper) |
590 |
|
12 |
Hinge reinforcement lower |
590 |
|
13 |
Side sill reinforcement |
780 |
|
14 |
Center pillar reinforcement (upper) |
980 |
|
15 |
Center pillar reinforcement (lower) |
590 |
|
16 |
Side sill reinforcement (rear) |
590 |
|
17 |
Suspension housing reinforcement (upper) |
780 |
|
18 |
Lower cowl side reinforcement (rear) |
590 |
|
19 |
Roof reinforcement No.2 |
590 |
|
20 |
Front B frame front |
590 |
|
21 |
Front B frame rear |
590 |
|
22 |
Floor reinforcement |
780 |
|
23 |
Crossmember No.2 |
590 |
|
24 |
Crossmember No.2.5 |
780 |
|
25 |
Tunnel reinforcement |
590 |
|
26 |
Side sill (inner, front) |
590 |
|
27 |
Side sill (inner, rear) |
780 |
|
28 |
Crossmember No.3 (lower) |
590 |
|
29 |
Rear frame reinforcement |
590 |
|
30 |
Rear side frame (front) |
590 |
|
31 |
Rear side frame (center) |
590 |
|
32 |
Rear side frame (rear) |
590 |
|
33 |
Floor side panel No.1 |
590 |
|
34 |
Rear bumper bracket |
590 |
Torque Box Removal [Panel Replacement]
Symbol Mark
Removal Procedure
1. Drill the 19 locations indicated by (A) shown in the figure.
NOTE:
When drilling the 19 locations indicated by (A) shown in the figure, do not
drill ...
Under Coating [Water Proof And Rust Preventive]
The shaded areas indicated under body locations that are undercoated to prevent
noise and rusting.
...
Other materials:
Front Fender Panel Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front bumper.
b. Front combination light.
c. Front bumper slider.
d. Front over fender.
3. Remove bolts A and fasteners B.
4. Remove bolts C.
5. Remove the front fender panel.
6. Install in the reverse ...
Steering Switch Removal/Installation
WARNING:
Handling the driver-side air bag module improperly can accidentally operate
(deploy) the air bag module, which may seriously injure you. Read the service
warnings and cautions before handling the air bag module..
1. Switch the ignition OFF (LOCK).
2. Disconnect the neg ...
Electrical Fan Control
Outline
Through cooling of the radiator and condenser by operation of the cooling
fan according to vehicle conditions, engine reliability and cooling performance
have been improved.
Block Diagram
Operation
The PCM determines the demand airflow volume by the following c ...