Mazda2 DE 1.5L MZR ZY-VE Engine - Heater Hose Connector Leak

[OZCorolla_x]

The MAZDA2 runs hot and for a 2009 "plastic & hoses" are getting old.
Car is now at 203,300km.

Previously fitted a New FloKool RAD1476 Radiator 11/1/2024 at 170,700kms, the Original OEM 2009 radiator was weeping around plastic top tank to aluminium core gasket seal.

D6516124YB Top Connector & Hose
D6516124X Bottom Connector & Hose
D65161240 Connector Only

Anyone else had a Coolant Leak from the Heater Hose Connectors? The leak for mine has developed over the last 600km or so....

Fig: Heater Bottom Connector Leak

Fig: Heater Bottom Connector Leak Mark on top Connector also

So probably up for two new Connectors & Hoses...

Rob

 

[OZCorolla_x]

Ordered parts on Monday they arrived Thursday

Fig: New Hoses Quick Connectors, Hose Clamps & Rad Cap

Had some time so replaced the Heater Hoses & Quick Connects

Remove the Battery, & ECM/Air Filter Cover, makes access easy for the Heater Hose replacement. You don't need to remove the standard air intake/plastic over the coil packs.

Fig: Battery & Air Cleaner plus ECU Removed for Ease of Access to Heater Hoses

About 1Hr all up then 10 min drive watching OBDII PIDs & check the heater hose connections & also Temps with Non contact thermometer. Then a 1/2Hr Hway run watching OBDII PIDs & checked the heater hose connections for seepage & also Temps with Non contact thermometer.
Checked the coolant level the following morning when car was cold & topped up coolant header tank. Also checked the Heater Hose connections & Radiator Drain Valve for seepage

Fig: New Heater Hoses Position Hose Clamps for Ease of Access

All good.

Rob