KÜS Tests 12-Volt Compressors: Quick Fix for Low Tire Pressure

KÜS, along with experts from Auto Bild and Auto Bild Klassik, has conducted a comprehensive test of twelve 12-volt compressors designed for quickly adjusting vehicle tire pressure. The test revealed significant variations in performance and reliability among the devices.

The majority of the tested compressors proved to be useful tools for correcting tire pressure, offering swift assistance in situations where pressure is too low. Suboptimal tire pressure can negatively impact vehicle stability, increase fuel consumption, and in severe cases, lead to tire failure.

The test winner, Heyner AeroCube Pro, received a "good" rating. It showed no weaknesses across all examination points, operated quietly, and inflated tires efficiently. The only criticism was directed at the somewhat unstable grip on the valve attachment.

Three compressors tied for second place, also earning a "good" rating. These included the Heyner BigAir Pro 237500, Brüder Mannesmann Mini-Kompressor, and Michelin Micro. The Heyner BigAir Pro was the fastest, inflating a tire to three bar in under three minutes, though it was quite loud. The Mannesmann model inflated tires quickly and operated quietly, while the Michelin compressor offered pre-programmable settings and reliable pressure display.

Two compressors, the Vonroc Mini Kompressor 12V and the Dunlop 92429, were rated "satisfactory" and failed the test. They were unable to inflate a car tire to the required three bar. The Dunlop model also exhibited hose overheating, posing a fire hazard. Both underperforming units displayed significant deviations in their pressure gauges and had manufacturing defects.