Mazda 3 Service Manual: Drive Belt Auto Tensioner Inspection [Mzr 2.3 Disi Turbo]
1. Remove the aerodynamic under cover No.2 and splash shield as a single unit..
2. Remove the drive belt..
3. Verify that the drive belt auto tensioner moves smoothly in the operational direction.
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Replace the drive belt auto tensioner if necessary..
4. Rotate the drive belt auto tensioner pulley by hand and verify that it rotates smoothly.
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Replace the drive belt auto tensioner if necessary..
5. Install the drive belt..
6. Install the aerodynamic under cover No.2 and splash shield as a single unit..
Drive Belt Auto Tensioner Inspection [Mzr 2.0, Mzr 2.5]
MZR 2.0
1. Remove the generator drive belt with the A/C drive belt still installed and
set it out of the way..
2. Verify that the drive belt auto tensioner moves smoothly in the operational
dir ...
Drive Belt Auto Tensioner Inspection [Skyactiv G 2.0]
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
If the rubber part of the drive belt auto tensioner is d ...
Other materials:
Rear Door Pad Removal/Installation
1. Fully open the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Rear door trim.
b. Rear door speaker.
c. Rear power window motor.
d. Rear door quarter glass.
e. Rear door glass.
f. Rear door module panel.
4. Remove the service hole co ...
Heater Core Inspection
1. Inspect the heater core for damage, cracks, and water leakage.
If there is any malfunction, replace the heater core.
2. Visually inspect the fins for bending.
If there is any bending, use the end of a flathead screwdriver to straighten
the fins.
3. Visually inspect ...
Variable Valve Timing Actuator Inspection [Mzr 2.3 Disi Turbo]
CAUTION:
Variable valve timing actuator cannot be disassembled because it is a precision
unit.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the charge air cooler..
4. Remove the ignition coils..
5. Disconnect the ventilation hose from th ...
