Electric vacuum pumps from HELLA are used to support or solely generate the vacuum for the pneumatic brake boosting system. Under certain driving conditions or depending on the engine design, insufficient or no vacuum can be provided to the brake booster via the intake manifold of an internal combustion engine. The UP 28 variant can support the system by generating an additional vacuum (support application) The UP 5.0 and UP 30 can provide the pneumatic vacuum supply alone ("stand alone" application). In this case, the pump acts as the sole source of vacuum and ensures sufficient supply for the brake booster and any auxiliary consumers. Structure and function: The operation of the vacuum pumps is based on the rotary vane compression principle. The pump contains a rotor that is eccentric to the pump chamber. The slides embedded in the rotor slide along the inner wall of the pump chamber. Rotation continuously compresses the volume enclosed by the slides. This change in cell volume causes a vacuum with the effect that air is drawn in from the brake booster via the pneumatic line system of the brake system by the vacuum pump.. Trust HELLA’s Vacuum Pump to deliver consistent, maintenance-free vacuum for essential systems like brake boosters and turbo controls across gas, diesel, hybrid, and electric engines. Engineered to OE standards, it boosts engine performance, ensures safety, and guarantees long-lasting, reliable operation.. Consistent Vacuum Supply: HELLA’s Vacuum Pump delivers reliable vacuum pressure for brake boosters and other systems—ensuring safe, consistent performance.. Durable, OE-Quality Build: Manufactured to meet or exceed OEM standards, HELLA Vacuum Pumps provide long-lasting reliability in demanding engine environments.. Optimized for Performance: Designed for efficient operation, this pump helps maintain proper vacuum levels—supporting smoother braking and system functions.. Easy Fit & Compatibility: HELLA Vacuum Pumps are designed for direct replacement, ensuring a precise fit and seamless integration with most vehicle systems.. Low Noise, High Efficiency: Engineered for quiet operation without sacrificing performance, offering a better driving experience and dependable results.. Audi A3 2013-2005, TT 2006-2003, Volkswagen Beetle 2015-2012, Golf 2013-2012, GTI 2013-2012, Jetta 2015-2008, Tiguan 2013-2012. Applicable to all engine concepts, such as electric motors and hybrid drives. Hella UP28 Vacuum Pump Audi/VW (Min Qty of 6). VACUUM PUMP UP28 W/RELAY BOX. HELLA Vacuum Pump 008570027. Vacuum Pump

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