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E30 series BMW 3

since 1983-1994 of release

Repair and car operation



E30 BMW
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
- 4. Cooling system
   4.2. Specifications
   4.3. Antifreeze
   4.4. Thermostat
   4.5. Radiator
   4.6. Fans and drive coupling
   4.7. The pump of cooling liquid
   4.8. The sensor of temperature of cooling liquid
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice



4. Cooling system

4.1. Introduction

GENERAL INFORMATION

System of cooling and the scheme of an arrangement of hoses of system on 4-cylinder engines

1. Engine
2. Heater radiator
3. Throttle branch pipe
4. The pump of cooling liquid
5. Radiator
6. Thermostat
Shooters specified the direction of a current of liquid.

System of cooling and the scheme of an arrangement of hoses of system on 6-cylinder engines

1. Heater radiator
2. Throttle branch pipe
3. Thermostat
4. Radiator
5. Broad tank
6. The pump of cooling liquid
7. Engine
Shooters specified the direction of a current of liquid.

Cooling system standard termostatiruyemy, elevated pressure. The thermostat is located: on the M10 engine – in the bottom hose of a radiator, on М20 – in the case, in a forward part of the engine and on М40 – under the top cover of a gear belt.

The stopper with the control valve on 4-cylinder engines is in a radiator stopper, on the 6-cylinder – in the top part of a transparent plastic tank. Pressure of operation of the valve – either 1,0, or 1,2 atm.