First read and observe the introductory information and safety warnings
It may no longer be possible to lock or unlock the vehicle with the remote control if the button is pressed repeatedly outside of the effective range of the vehicle key. If this is the case, the vehicle key should be re-synchronised as follows:
Adhesive Surface Pretreatment when Replacing Laser-Soldered Roofs
Dry sand the cataphoretic primer on the roof adhesive surface
-item 6-
→ Item down to the bare metal using P180 sandpaper.
–
Dry sand the roof pillar adhesive surface
...
Secondary Lock
The secondary lock is a housing securing mechanism (second
locking mechanism) that secures all wires in one contact
housing. If a secondary lock is installed at a contact housing,
it must always be opened or removed using specified tool before
releasing ...
Heel and Toe Wear
Heel-and-toe wear is step-like wear of individual tread
blocks, due to which an increased rolling noise can develop. The
heel-and-toe wear is caused by the uneven distortion of the
tread blocks in the contact patch. Heel-and-toe wear appears in
more extr ...