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Vehicle cooling and heating BMW 3 Series E46
Technical data
Working pressure in the cooling system is 2.0±0.2 bar Thermostat Opening temperature: 4-cylinder engine M43TU - 105°C 4-cylinder engine N42 - 103°C 6-cylinder...
Working pressure in the cooling system is 2.0±0.2 bar Thermostat Opening temperature: 4-cylinder engine M43TU - 105°C 4-cylinder engine N42 - 103°C 6-cylinder...
Tightening torques for connections, Nm
Water pump mounting bolts/nuts (all engines except N42): Bolts, nuts M6 - 10 Bolts, nuts M8 - 22 Water pump to power steering pump (n42 engine) — 32 Viscous...
Water pump mounting bolts/nuts (all engines except N42): Bolts, nuts M6 - 10 Bolts, nuts M8 - 22 Water pump to power steering pump (n42 engine) — 32 Viscous...
General information and precautions
General information The cooling system operates under excess pressure. It consists of a water pump, an aluminum radiator, a fan, and a thermostat. The system...
General information The cooling system operates under excess pressure. It consists of a water pump, an aluminum radiator, a fan, and a thermostat. The system...
Coolant Hoses — Disconnecting and Replacing
Note: Before starting work, read the warnings given in paragraph 1 of this chapter. 1. If during the check described in chapter 1 , a defective hose is found,...
Note: Before starting work, read the warnings given in paragraph 1 of this chapter. 1. If during the check described in chapter 1 , a defective hose is found,...
Radiator — removal, condition check and installation
If the radiator is to be removed due to leaks, keep in mind that small leaks can be repaired with a radiator sealant without removing the radiator from the...
If the radiator is to be removed due to leaks, keep in mind that small leaks can be repaired with a radiator sealant without removing the radiator from the...
Thermostat — Removal, Checking and Installation
Note: When installing the thermostat, the sealing ring and gasket must be replaced. Removal 1. Disconnect the negative cable from the battery. 2. Drain the...
Note: When installing the thermostat, the sealing ring and gasket must be replaced. Removal 1. Disconnect the negative cable from the battery. 2. Drain the...
Cooling system fan with viscous coupling — removal and installation
Note: To remove the fan with a viscous coupling, you will need a special thin open-end wrench 32 mm. Removal 1. Remove the fasteners and remove the upper...
Note: To remove the fan with a viscous coupling, you will need a special thin open-end wrench 32 mm. Removal 1. Remove the fasteners and remove the upper...
Electric Cooling Fan — Removal and Installation
Removal Main fan 1. Remove the cover from the front panel under the hood by removing the fasteners (Fig. 6.1). If there is a plastic cover above the engine,...
Removal Main fan 1. Remove the cover from the front panel under the hood by removing the fasteners (Fig. 6.1). If there is a plastic cover above the engine,...
Cooling System Sensors and Switches — Checking, Removing and Installing
Thermal switch at the radiator outlet Examination 1. Have the sensor checked by a BMW dealer. Removal 2. The thermal switch is located in the lower radiator...
Thermal switch at the radiator outlet Examination 1. Have the sensor checked by a BMW dealer. Removal 2. The thermal switch is located in the lower radiator...
Water pump — removal and installation
Note: A new O-ring will be required during installation. Removal 1. Drain the coolant ( see chapter 1 ). Engine N42 2. Loosen the power steering pump pulley...
Note: A new O-ring will be required during installation. Removal 1. Drain the coolant ( see chapter 1 ). Engine N42 2. Loosen the power steering pump pulley...
Heating and ventilation system — general information
1. The interior heating and ventilation system includes a four-speed electric fan, deflectors in the center and at both ends of the dashboard, as well as air...
1. The interior heating and ventilation system includes a four-speed electric fan, deflectors in the center and at both ends of the dashboard, as well as air...
Heating and ventilation system elements — removal and installation
Without air conditioning Heating and ventilation control panel 1. Disconnect the negative cable from the battery. 2. Remove the audio system as described in...
Without air conditioning Heating and ventilation control panel 1. Disconnect the negative cable from the battery. 2. Remove the audio system as described in...
Air Conditioning System — General Information and Precautions
General information 1. The air conditioning system can be installed on any model. It cools the air in the cabin and reduces its humidity, making the atmosphere...
General information 1. The air conditioning system can be installed on any model. It cools the air in the cabin and reduces its humidity, making the atmosphere...
Air conditioning system components — removal and installation
Warning! Do not attempt to disconnect the air conditioning system circuit yourself. Observe the precautions specified in paragraph 11. Evaporator Removal 1....
Warning! Do not attempt to disconnect the air conditioning system circuit yourself. Observe the precautions specified in paragraph 11. Evaporator Removal 1....
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
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