For 1990-2009 cars

1. Clean sealing surface.
2. Install a NEW engine coolant thermostat housing seal.
3. Install the engine coolant thermostat housing (2).

Note: Screw in the 4 bolts until the engine coolant thermostat housing is in contact with the cylinder head.

4. Install the 4 engine coolant thermostat housing bolts (3).

Caution: Refer to Fastener Caution in the Preface section.

Note: It is essential to comply with the specified tightening sequence 1-4 - risk of fracture.

5. Tighten the 4 engine coolant thermostat housing bolts to 8 N·m (71 lb in).
6. Install the engine coolant thermostat housing retainer (1).
7. Install the engine coolant thermostat housing retainer nut (4) and tighten to XXX N·m (XXX lb in).