TPMS sensors on winter wheel set
https://mbworld.org/forums/c-class-w...50-4matic.html
The tire man says my C350 doesn't have sensors in the wheels - the pressure monitoring system is operated through the ABS system. It detects a lower pressure tire due to its smaller diameter (and more revolutions).
I picked my new (to me) 2013 on Friday and the salesman thought it had wheel TP sensors. He asked the parts man for me and it was confirmed - Canadian C-class (I wouldn't know about other series) don't have them.
I think USA C-class do have them.
One way to tell for sure - if the tire valve stem is rubber, it's not a TP monitor. Their stems are metal.
Do you think there would be any issues if I drop down to 17" rims / tires for winter? My C350 comes with the staggered 18" option, but I would go with 225/45R17 XL tires for the winter. The difference in price is minor between a 18" and 17" set, but most people seem to agree that 17" seems better for winter. That being said, I don't want any issues with sensors and such, and while 17" is already available on these cars, does it throw off the sensors or is there a chance for any long term issues if we switch between a 17" and 18" set?
Trending Topics
The Best of Mercedes & AMG
Do you think there would be any issues if I drop down to 17" rims / tires for winter? My C350 comes with the staggered 18" option, but I would go with 225/45R17 XL tires for the winter. The difference in price is minor between a 18" and 17" set, but most people seem to agree that 17" seems better for winter. That being said, I don't want any issues with sensors and such, and while 17" is already available on these cars, does it throw off the sensors or is there a chance for any long term issues if we switch between a 17" and 18" set?
I was talking to my tire guy about winter wheels and tires and he was the one to suggest going down to 17" wheels. He had a book that gave diameters for all tire/wheel combos and I think with 45 aspect ratio tires the overall diameter would be under a 1/2" difference.
He suggested not going with the staggered widths too as tires would be cheaper. The BIG plus is that my old winter tires from my Acura I just traded on my C350 would fit! He figures I have three more winters left in these tires.
C300fan has got it right about re-setting the dash setting. I think it's covered in the car handbook.
Last edited by Zozzle; Oct 5, 2015 at 06:59 AM. Reason: Added more info.
This is my second MB, and I know the dealer recommends going with all 4 winter tires the same size - just use the size of the front tires. Wider tires in the back wear out almost 2x faster when you go with a staggered combo, which would be non-sense for winter tires.
I just went to tirerack to grab the 17" tire sizes and priced out a set of 4 with the front tire diameters. I'm really happy I don't need to spend the nearly $300 for the tpms sensors!
Thanks!
Thanks!
Rim weight is not really an issue. Just ensure the overall Dia of front and rear tires is within spec.






