Vehicle cooling and heating Toyota Highlander 1 (XU20)

General information about the cooling and heating system
Engine cooling system All vehicles covered in this manual use a hermetically sealed engine cooling system with thermostatically controlled coolant circulation (pic. 1.1) Coolant is circulated through the engine by a...

Antifreeze — general information
Attention! Do not allow antifreeze to get into the skin or paintwork of the body. Wash off splashes immediately with plenty of water. Do not leave coolant in open containers or in puddles where children and pets can...

Thermostat — check and replacement
Attention! Do not attempt to unscrew the radiator cap, drain the coolant, or remove the thermostat until the engine is completely cool. General check 1. Before blaming the thermostat for cooling system slavery problems,...

Engine cooling fans — removal and installation
Attention! At the beginning of this procedure, wait for the engine to cool completely. Do not allow antifreeze to come into contact with skin or body paintwork. Wash off splashes immediately with plenty of water. Do not...

Radiator and expansion tank — removal and installation
Attention. Wait until the engine has completely cooled down before starting this procedure. Do not allow antifreeze to come into contact with skin or body paintwork. Wash off splashes immediately with plenty of water....

Coolant Pump — Check
1. A malfunction in the coolant pump can cause serious engine damage due to overheating. 2. The coolant pump has a vent hole. If a pump seal fails, coolant leaks through this hole. In most cases, you will need a...

Coolant pump — removal and installation
Attention! Wait until the engine has completely cooled down before starting this procedure. Do not allow antifreeze to come into contact with skin or body paintwork. Wash off splashes immediately with plenty of water....

Coolant temperature gauge — check
Attention! Wait until the engine has completely cooled down before starting this procedure. 1. The coolant temperature gauge system consists of a temperature gauge on the instrument panel and a sensor mounted on the...

Blower fan — removal and installation
Attention! The models described in this manual are illuminated with an auxiliary restraint system (SPS), better known as «airbag system». To prevent accidental deployment of airbags, which could result in injury, be...

Heater and air conditioning control unit — removal and installation
Attention! Models covered in this manual are equipped with an assisted restraint system (SRS), better known as «airbag system». To prevent accidental deployment of airbags, which could result in injury, be sure to...

Heater radiator — removal and installation
Front heater radiator Attention! Models covered in this manual are equipped with an assisted restraint system (SRS), better known as «airbag system». To prevent accidental deployment of airbags, which could result in...

Air conditioning and heating system — check and service
Air conditioning system Attention! The air conditioning system is constantly under high pressure. Never disconnect the refrigerant lines or remove system components without first unloading the refrigerant from the...

Air conditioner dryer receiver — removal and installation
Attention! The air conditioning system is constantly under high pressure. Never disconnect the refrigerant lines or remove system components without first unloading the refrigerant from the system. The unloading of...

Air conditioning compressor — removal and installation
Attention! The air conditioning system is constantly under high pressure. Never disconnect the refrigerant lines or remove system components without first unloading the refrigerant from the system. The unloading of...

Air conditioner condenser — removal and installation
Attention. The air conditioning system is constantly under high pressure. Never disconnect the refrigerant lines or remove system components without first unloading the refrigerant from the system. The unloading of...

Cooling and Heating Specifications
General information Radiator cap opening pressure - 93...122 kPa Thermostat specifications Beginning of opening — 80...84°С Full opening - 95°С Tightening torques for threaded connections Nm (unless otherwise stated)...