Aerosus offers brand new air suspension compressors for the Audi A6 C5 4B Avant, which replace the original compressor of your vehicle. The new, high-performance compressors have a compact, modular design while also providing you with maximum security and functionality. Each compressor comes fully assembled and ready for installation, including compressor and a relay. The compressor relay should be replaced after installation of the compressor unit, as failure to do so will void the product’s warranty. When the compressor is installed, Aerosus recommends you to check the complete air suspension system for any leakage. The most common cause of compressor failure is a leak in the air suspension system, most likely in one of the air springs. Leaky air springs should be replaced immediately to maintain optimum compressor performance. All our compressor units are covered by a 2-year warranty with 30-day money-back guarantee. Features OE-quality High-performance compressor Brand new part Security and durability Powerful and reliable Compact design Easy installation Maintenance-free Reduced noise and vibration Integrated air dryer Thousands of satisfied customers worldwide