The wheel lock key can be found anywhere in Your BMW Z4 and it depends where You last left it. When You buy the car new from BMW they include a key that can be used to unlock the wheel locks. The first place that I would check for this is at the tool kit that is in the trunk. This is a logical place to keep it because it would be with the tire iron and changing tools. Another spot that You should check is in the glove compartment and the center console. These are both places that shops will often put a key back after they are done using it. If You cannot find Your key You can always contact BMW and order a replacement.
Dale K
July 30, 2020
The BMW Z4 locking wheel nut key can be many places but commonly they are kept in the glovebox.
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