BMW 3 SERIES E46 1998-2005 DOUBLE TWIN DUAL VANOS SEALS REPAIR KIT M52 M54 M56 X8R28 Our repair kit in this listing addresses the common failure of the BMW Dual Vanos Unit. Our components described herein with the assistance of our supportive instruction media will allow you to replace just the faulty components with improved components without the need to replace the whole unit. An extremely common fault corrected by our repair kit Symptoms of this failure include; overall loss of power and torque particularly in the lower RPM range, loss of power with air conditioning on, louder idle, increased fuel consumption and difficult cold weather starts and even stalls. This repair kit includes: 4x replacement seals and wear rings to repair both pistons, 2x improved design and material Viton O-rings for piston caps, 1x RTV sealant for resealing valve cover and 9x replacement bolts and washers. https://youtu.be/zojrkAFTscA https://www.x8r.co.uk/ebay_x8r/instructionspdf/BMW-6-cylinder-dual-vanos-piston-seal-repair-fix-p.pdf