BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

4.1. Introduction

THE GENERAL DATA

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

1. The engine 2. A heater radiator 3. A throttle branch pipe 4. The pump of a cooling liquid

5. A radiator 6. The thermostat Arrows specify a direction of a current of a liquid.

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

1. A heater radiator 2. A throttle branch pipe 3. The thermostat 4. A radiator 5. A broad tank

6. The pump of a cooling liquid 7. The engine Arrows specify a direction of a current of a liquid.

Cooling system standard термостатируемая, an elevated pressure. The thermostat is located: on engine M10 – 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 6-cylinder – in the top part of a transparent plastic tank. Pressure of operation of the valve – either 1,0, or 1,2 атм.