037 906 040 C : CO Potentiometer for Volkswagen Passat B3

The CO potentiometer is an engine management component that plays a role in regulating the air-fuel mixture on the Volkswagen Passat B3. Its wear or failure can cause disruptions in engine operation and a drift from original settings. As part of the restoration or maintenance of a classic Passat B3, its replacement with a new part allows the parameters to be restored in line with period design and to preserve vehicle reliability. An element not to be overlooked for enthusiasts keen to maintain their Volkswagen in impeccable mechanical condition.