Audi S3 Heater Control Valve

The Audi S3 was introduced in 1999. During the development of the Audi S3, many popular parts have been built, such as heater control valve parts. The S3 heater control valve opens and closes to prevent hot engine coolant from traveling into the heater core.

S3 functions quite well in the beginning. But the old heater control valve parts might lead to poor functions and unpleasant driving experiences after years of usage. The heater control valve is typically located on the heater inlet hose and is driven by a cable, vacuum motor, or an electric solenoid (depending on the vehicle). Signs of bad S3 heater control valve parts include no heat coming out of the ports, coolant leaks, lower coolant levels, and engine overheating. There are much better and smarter S3 products and devices. Our website has great S3 parts and devices online.