Date registered: Dec 2012
Vehicle: 87 560SL, 71 280SL euro, 74 VW Ghia, 78 280Z Black Pearl, 78 280Z, 04 Corolla, 07 Odyssey, 94 Prizm
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Quoted: 3 Post(s)
For ESP in Mercedes-Benz vehicles, they use a number of sensors to establish stability. Besides having the wheel speed sensors, they also have a yaw rate sensor, steering angle sensor, brake switch, and an acceleration sensors. Engine speed, load, transmission gear selection, and actual gear in transmission information is shared via CAN bus (Controller Area Network) with ESP/BAS module. So much more than just the circumfrence of your wheels is involved, but it can have an effect. Even before having TPMS sensors, Mercedes would use wheel speed sensors to identify if a tire was going flat by the difference in wheels speed in comparison with the others. Now to note, if all four tires are leaking, the system will not detect if you have a tire going flat. This was called RDK.
I don't know if it is where you live in Ohio, but in my 24 years of working on vehicles, i have only seen 2 cases where a tire was going flat due to a porous wheel. One was my sister's 94 Buick Century and the other was a 2005 brand spanking new Nissan Titan. I have seen this in MB vehicles, but it has been due to a cracked rim (normally not an OEM wheel). I have replaced countless tires and have not really seen damage internally, unless the improper equipment has been used to replace a tire and poor work habits.
When it comes to brake dust, I DO know that MB vehicles produce a ton of brake dust. I have many customers complaining about this. Unfortunately, there is nothing that can be done. Brake dust damage? I say it is for people who are lazy and do not clean their vehicles and cars frequently. The materials used in producing the MB brake components are softer than most other makes. Some of the brake pads are manufactured by Brembo for Mercedes. Softer material=more brake dust. The benefits?? Greater stopping power. I have had customers install aftermarket brakes in their Benzes and they end up with noises and clanking noises of brake pads not fitting properly.