1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Disconnect the wiring harness.
5. Remove the ignition coils..
6. Remove the spark plugs..
7. Remove the ventilation hose.
8. Remove the oil level gauge.
9. Remove the cylinder head cover..
10. Remove the aerodynamic under cover No.2 and splash shield as a single unit..
11. Measure the valve clearance.
NOTE:
Make sure to note down the measured values for choosing the suitable replacement tappets.
a. Turn the crankshaft clockwise so that the No.1 piston is at top dead center (TDC) of the compression stroke.
b. Measure the valve clearance at A in the figure.

IN: 0.22—0.30 mm {0.009—0.011 in}
EX: 0.27—0.37 mm {0.011—0.014 in}
c. If the valve clearance is out of the standard value, adjust it..
d. Turn the crankshaft 360°
clockwise so that the No.4 piston is at TDC of the compression stroke.
e. Measure the valve clearance at B in the figure.
IN: 0.22—0.30 mm {0.009—0.011 in}
EX: 0.27—0.37 mm {0.011—0.014 in}
f. If the valve clearance is out of the standard value, adjust it..
12. Install in the reverse order of removal.
Valve Clearance Adjustment [Mzr 2.0, Mzr 2.5]Oil Pressure Switch Removal
MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before removing the exhaust system.
1. Disconnect the negative battery cable.
2. Remove the aerodynamic under cover No.2..
3. Disconnect the connecto ...
Saving Fuel and Protection of the
Environment
How you operate your Mazda determines
how far it will travel on a tank of fuel. Use
these suggestions to help save fuel and
reduce CO2.
Avoid long warm-ups. Once the engine
runs smoothly, begin driving.
Avoid fast starts.
Drive at lower speeds.
Anticipate when to apply the brakes
(a ...
Spare Tire
Your Mazda has a temporary spare tire.
The temporary spare tire is lighter and
smaller than a conventional tire, and is
designed only for emergency use and
should be used only for VERY short
periods. Temporary spare tires should
NEVER be used for long drives or
extended periods.
WAR ...