Coolant Line/Hose: Service and Repair

Coolant Inlet Pipe - 3.5L GTDI





Coolant Inlet Pipe (View 1 of 2)









Coolant Inlet Pipe (View 2 of 2)









Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.

2. Remove the 4 retainers and the underbody shield.





3. Drain the cooling system. For additional information, refer to Cooling System &/or Engine Block Heater.

4. Remove the 2 banjo bolts and the LH turbocharger coolant tubes.
- Discard the sealing washers.

5. Remove the intake manifold. For additional information, refer to Engine.

6. Remove the battery tray. For additional information, refer to Battery.

7. Remove the starter motor. For additional information, refer to Starting System.

8. Detach the wiring harness pin-type retainer from the transaxle shift cable bracket.

9. Remove 3 bolts and the transaxle shift cable bracket.

10. Remove the RH cylinder head bolt and the ground wire.

11. Disconnect the wastegate control valve hose.

12. Remove the LH coolant tube bracket-to-cylinder head nut and position the coolant tubes aside.

13. Disconnect the 2 LH turbocharger coolant tubes.

14. While pulling the coolant tube out, rotate the coolant tube counterclockwise one full turn and remove.
- Remove and discard the O-ring seal.

Installation

1. NOTICE: Genuine Mazda(R) Extended Life Coolant and Motorcraft(R) Specialty Green Engine Coolant are very sensitive to light. Do NOT allow these products to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes these products to degrade.

NOTE: Apply clean engine coolant to the O-ring seals prior to installation.

Using new O-ring seal, rotate the coolant tube clockwise one full turn while installing.

2. Connect the 2 LH turbocharger coolant tubes.

3. Install the coolant tube bracket-to-cylinder head nut.
- Tighten to 10 Nm (89 lb-in).

4. Connect the wastegate control valve hose.

5. Install the ground wire and the RH cylinder head bolt.
- Tighten to 10 Nm (89 lb-in).

6. Install the transaxle shift cable bracket and the 3 bolts.
- Tighten to 12 Nm (106 lb-in).

7. Attach the wiring harness pin-type retainer to the transaxle shift cable bracket.

8. Install the starter motor. For additional information, refer to Starting System.

9. Install the battery tray. For additional information, refer to Battery.

10. Install the intake manifold. For additional information, refer to Engine.

11. Using 2 new sealing washers, install the 2 LH turbocharger coolant tubes and the banjo bolts.
- Tighten to 40 Nm (30 lb-ft).

12. Fill and bleed the cooling system. For additional information, refer to Cooling System &/or Engine Block Heater.

13. Install the underbody shield and the 4 retainers.