ApplicationCompatible for Audi A6 C51999-2006 compatible for Audi A6 4B2, C5 1997-2005 compatible for Audi Allroad Quattro Wagon (C5) 2001-2005SpecificationOEM Part Number: 4Z7616052A 4Z7 616 052 A 4Z7 616 052A 4Z7616052 4Z7 616 052 Quantity: 1 piece (rear right)Feature- one year warranty for any manufacturing defect - Mates with OE Air Lines - Designed for Comfort Suspension - Fast ShippingReplaces the original spring - Safe carrying capacity and stability - High-quality materials according to OE specifications, for high load capacity and long service lifeNote- These air suspension bags are aftermarket ones. - They will replace the original rear air springs. - Instruction is not included. Professional installation is recommended - Contact us please for whatever we can help