It is only necessary to rewax or seal the affected area after repairing the body.
Only BMW approved products may be used to comply with the six year warranty against rust perforation.
These products protect cavities effectively and permanently against corrosion. Their excellent coating and waterproofing properties let them flow into all inaccessible corners and folds for unsurpassed overall protection.
UNDERBODY AND BODY CAVITY SEALING COMPOUND
For sealing of body cavities, such as doors, Apillars,
front, side and cross members, etc.
(Former BMW Part No. 81 22 9 407 479)
3M Part No. 8891
Wurth Part No. 892080
Also: Wurth "Brushable Seam Sealer", Part No. 8901021.
BMW X3 Service & Repair Manual > Engine electrical system: Socket wrench
Socket wrench AM
NOTE: For screw with internal serrations (Hazet 8808 lg10)
Storage Location
A49
SOCKET WRENCH INSERT
Socket wrench insert AM
NOTE: (Torx socket wrench insert T20)
Socket wrench insert Minimum set: Mechanical tools Mechanical tool
NOTE: (Socket wrench insert WAF 24) For rem ...