Coilovers Lowering Suspension Kit For Audi A3 8P 06 13 18Way Adj AST Suspension 07 15 Audi A4 Sedan 1.8TFSi 2.0TFSi 2.0TDi (B8) Lowerin AST Suspension Lowering Springs (30mm 30mm TUV) 2011 2018 Audi A6 Avant 2.8TFSi 2.0TDi (4G) AST 03 2004 02 2011 Mercedes Benz SLK Lowering Springs 30mm 30mm 2017 i3 AST Suspension Lowering Springs european auto source Flickr. AST Lowering Springs for the 2011 2018 Audi A6 (4G) are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers for its quality and metal consistency. Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the vehicle. Features Progressive rates on most vehicles. EDC Compatible (if applicable to vehicle) Each spring is blocked and computer tested prior to shipping, which reduces any settling once installed on the vehicle. Lifetime warranty on breaking. Most of our spring applications are TUV Certified and certificates can be provided upon request. Lowering Range Front: 30mm Rear: 30mm TUV Certified? Yes Vehicle Fitment Part Number: ASTLS 14 226 Product: AST Lowering Springs Production Years: 04 2011 08 2018 Model Years: 2011 2018 Make: Audi Model: A6 Chassis: 4G Model Note: Note 1: Not suitable for 4WD (four wheel drive) cars. Note 2: For cars with standard lowering, the indicated lowering will be reduced with the amount of the standard lowering. Additional Vehicle Fitment 2011 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2012 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2013 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2014 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2015 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2016 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2017 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G) 2018 Audi A6 Avant 2. 8TFSi 2. 0TDi (4G)