The badges in the centre of BMW wheels have a hard life being so close to the road surface. After a time, they will start to look tired. The clear surface lacquer may start to lift and the badges will need replacing from time to time.
Depending upon the wheels that are fitted, the badges most often are stuck to a plastic centre cap which is pushed into the centre of the wheel. This cap needs to be removed in order to make it easier to detach the badge from the cap.
If the wheel is off the car, this can be done by pushing the cap out from the back of the wheel. If the wheel is still on the car then the cap needs to be pried off by inserting a small flat implement or a screwdriver between the edge of the cap and the wheel surface.
Screwdrivers are often used for this task but levering against the wheel surface may cause small areas of damage to the wheel surface. If possible, use something plastic such as the edge of a credit card or similar. Once the edge of the badge is lifted a little, it may be possible to pull it out with your fingers.
With the cap removed, a small but strong flat bladed screwdriver is required to pry the badge off the cap. The screwdriver needs to be forced between the edge of the cap and the badge, being careful to not allow the screwdriver to slip and injure yourself. You will probably need to work all the way around the cap until the badge becomes free. The old badge often gets destroyed in the process. bmwstylerims.com
Once the badge is removed, it is important to remove as much of the old adhesive from the cap as possible. If the adhesive is hard, it may be difficult to remove but it can be attempted using the ubiquitous screwdriver again. Clean the surface of the cap as much as possible, being sure to remove any dirt or loose adhesive. An alcoholic cleaning wipe is useful for this purpose if available. If not, any sort of suitable cleaning fluid should work. If the surface is in particularly bad condition and won’t clean up sufficiently, then a new cap may be required. It is worth noting that certain sizes of badge are only available already attached to the cap, therefore requiring the whole cap to be replaced.
When buying your new badges, it is best to ensure that you purchase original BMW badges. These are made from a flexible aluminium. Various replica badges are available but apart from being fake, the design of the BMW logo often looks a little odd and the colours are not always accurately reproduced. Some of these badges are made from a clear plastic and are quite thick, making them look a little out of place once fitted. It has even been known for fake badges to be made from paper.
Original BMW wheel badges are available in a variety of sizes, most of which have a self adhesive backing. It is important to measure the diameter of the centre cap accurately to identify the correct size of badge as they are measured in millimetres. Be sure to measure the surface where the badge fits onto and do not include any lip that runs around the outside of the cap.
Also, it is important to decide whether your centre cap is flat or slightly raised. Some badges are available as either flat or convex (raised or domed). Some sizes are only available as either one type or the other. If you have original BMW wheels, it should not be a problem to identify the correct size and profile of badge that you require. However, if your wheels are none BMW, then it can be a little more tricky as some after market manufacturers have centre caps that are not suitable for any size of original BMW wheel badges.