A Vane Air flow (VAF) Sensor
Automotive
Advertisement A vane air flow (VAF) sensor. Typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path as the vane opens.  Many air vane sensors also have contacts that close to supply voltage to …
Audi Self-locking center differential
Automotive
Advertisement In 2005, Audi set off the next stage in the evolution of its classic Quattro drive system in the second-generation RS 4. The new self-locking center differential, which is used in many models today, remained true to the principle …