Removal and Installation

Drain the cooling system. Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
Raise the vehicle.

Fig 1: Locating Block Heater Power Cable
Courtesy of MAZDA MOTORS CORP.
Disconnect the block heater power cable from the block heater.

Fig 2: Locating Block Heater Retaining Screw & Block Heater
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Do not loosen the block heater retaining screw more than necessary for removal.
Remove the block heater.
CAUTION:
- Make sure the power cable is routed and secured away from rotating or hot components or damage to the cable may occur.
To install, reverse the removal procedure.