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I've had my car for a few years now, its a 330i M Sport with the N53 Engine. For the first time today I noticed these balancing weights on my alloy wheels on the outside! I have never seen them before and I know they were not there because I cleaned my alloy wheels around a year ago and do not remember seeing them. The worse thing is you can see them from the outside, like a a good few metres standing away from the car. I have not changed the tyres neither have my balanced my wheels since I purchased my car back Jan 2013 so I'm really confused! When I first saw them I thought some kids were playing a joke and stuck them on. I tried tugging them off but I could not.

The car went in for a warranty repair last week at the main dealer and they only changed the DTC control unit so don't see why they would balance the wheels. Prior to that in Jan 2015 it went in for an oil change and full vehicle check and battery change at a BMW specialist (Birds Auto). But I don't see why they would balance the wheels unless its part of the service??

Even if the wheels were balanced why are the weights added right on the outside where its obvious to see..It ruins the look of the alloys.

I have attached some photos. The one with the smaller weight are both on the rear wheels. The one with the longer/larger weights are both on the front. Should they be positioned in an area where everyone can see? Or have some kids played a stupid joke and super glued them on?

image1.JPG

image2.JPG
 

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Well, you could remove them and suffer the harmonics.

The weights have to be positioned as close to the edge of the wheel as possible, in the centre they'd offer a lot less benefit. Due to the effects of inertia the wheel is balanced (generally) on the inner and outer "wall", with weight added to the inner or outside edge to compensate.

It's especially rare to have an absolutely perfectly balanced tyre/wheel package so I doubt they've just appeared, maybe you just didn't notice last time you examined the wheels.

The only alternative is old-fashioned clip-ons, but I guess you're not desperate for those!
 

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IF kids glued them on surely your steering wheel would be shaking badly!

They have a 2way sticky back,and can peel off using an instrument similar to a screwdriver!

IF you not happy simply go to a reliable tyre place & get them to rebalance them, and ask them if its possible to fit them out of sight!
Bmw on a vehicle check do tend to wipe the inner alloys to check for alloy cracking, maybe your service centre did the same, moving some crap, that's why you have noticed them?
 
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