Warning
Caution
1. Level the vehicle.
2. Complete the BEFORE REPAIR PROCEDURE. (See BEFORE REPAIR PROCEDURE.)
3. Disconnect the negative battery cable.
4. Remove the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION.)
5. Siphon the fuel from the fuel tank.
6. Remove the middle pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION.)
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Complete the AFTER REPAIR PROCEDURE. (See AFTER REPAIR PROCEDURE.)


Breather Hose Installation Note
Fit the breather hose onto the respective fittings, and install clamps as shown.

Joint Hose Installation Note
Fit the joint hose onto the respective fittings, and install clamps as shown.

After repair procedure
Fuel tank inspectionMazda 6 Service Manual: Exhaust system
EXHAUST SYSTEM INSPECTION
Start the engine and inspect each exhaust system component for exhaust gas
leakage.
If leakage is found, repair or replace as necessary.
EXHAUST SYSTEM REMOVAL/INSTALLATION
Warning
When the engine and exhaust system are hot, they can badly burn.
Turn off t ...
Mazda 6 Service Manual: Woofer inspection
1. Inspect for continuity between the audio amplifier connector terminals and
woofer connector terminals using an ohmmeter.
If not as specified, replace the related wiring harnesses.
2. Verify that there is battery positive voltage at the woofer connector
terminal A (4SD) or C (5HB) u ...