This is a brand new Mercedes Headrest Adjuster and Power Seat adjuster mechanics refurbishment pack, recommended for below mentioned types and years. If you would like to replace all plastic gears in multiple (10) cars, this is the perfect package for you.

If you are not sure whether this item fits your car, please contact me.

This kit contains enough parts for 10 vehicles. 2 gear kits for the headrests in each car, 4 worm wheels for the seat adjusters, also in each car. The gears are made of engineering grade 3D printing material, color may be different from photo (black or white, or combination). Price is 40% lower than individual kits.

Installation:

Please check that the threaded shaft can rotate freely to prevent stripping the replacement gear. It is recommended to lubricate with grease that has no graphite content. (General purpose grease will do just fine)

You may need to press the new gears on with the nut for the seat adjuster, and a socket for the headrest. It may need quite a bit of force. I recommend no to use a hammer or excessive force, rather press or push these. When installing the headrest gears, one must install the larger gear first, so that the smaller gear (which can rotate freely) may mesh into it properly. In case you have any concerns, please contact me.