Product Description: 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 fault: 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. The cause: The seals fitted to the pistons within your vehicles Vanos unit wear prematurely because they are constructed of poor quality materials; causing loss of torque and power! If you drive a BMW 6 cylinder vehicle 1993-2006 your Vanos (variable valve timing unit) is most likely failing. The O-rings fitted to the pistons within the Vanos unit wear prematurely because they are constructed of poor quality Buna rubber which is not suited to the elevated temperatures of their location. The seals fail and lead to Vanos unit failure. BMW do not provide replacement seals, they do provide complete Vanos units at vast expense but these again are fitted with the same poor quality seals that will fail again. Vehicles Affected: Compatible with BMW 6-cylinder engines M52TU and M54 5 series E39 - 99-03 E60/E61 - 02-05 7 series E38 - 98-01 E65/E66 - 02-05 Z3 E36 98-02 Z4 E85 02-05 X3 E83 03-06 X5 E53 00-06 3 series E46 - 98-05 Instructions: 1) https://youtu.be/zojrkAFTscA 2) https://www.x8r.co.uk/ebay_x8r/instructionspdf/BMW-6-cylinder-dual-vanos-piston-seal-repair-fix-p.pdf
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