Heating

The UK doesn't exactly experience Arctic conditions, with the harshest winters being described as "a bit chilly". But numb fingers does detract from the pleasures of driving an E30, which is why your car is fitting with a Heating system.

The heating system is directly integrated into both the Cooling system and the Aircon system, if fitted.

Overview

The heating system provides warmth for the cabin based on engine temperature. By taking a direct feed from the engine coolant, a secondary radiator known as the heater matrix is warmed to very high temperatures. A fan then blows air over the radiator, creating a hot draught which is channelled into a number of vents around the cabin.

The driver directly operates the heating system through the controls in the centre of the dashboard.

Components

Vents

Air flow around the cabin was distributed by plastic pipes, concealed behind the dashboardand under the carpet. These pipes could channel air to the front footwells, rear footwells, front door windows and the centre of the dashboard.

Common Problems

Heater Blower

The fan itself can be a finicky little unit, and will either not work at all or, more commonly, only work on the MAX setting. If that's what's happening, learn more about heater fan problems.

Troubleshooting

If you're having more complex issues with your heating system, such as total failure, learn more about troubleshooting the heating system