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Custom rim weights versus factory stock rims

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Old May 12, 2015 | 10:02 PM
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Bs_Benz's Avatar
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09 C300 4Matic Luxury
Custom rim weights versus factory stock rims

Hello all.....
So I am currently shopping new custom rims and tires. I own a 09 C300 4Matic luxury. I have stock 17" 14 spoke rims. Long story short a local mechanic shop said if I change the weight of the tire/rim combo that it will throw off the transmission and break the drive shaft.
He went into more detail saying the custom rims were much lighter and always spun and it threw off the electronics in the transmission causing the drive shafts to break. Honestly IDK what to think.

Anybody heard of a rim weight issue or breaking a transmission?

The new 18"rims I'm buying weigh 29lbs. without tire (which will be 245/35R18).

I still haven't found anyone who can supply weight of factory 17" rim.......
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Old May 12, 2015 | 11:57 PM
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MB Marko's Avatar
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From: London ON Canada
2012 C300 4Matic Sport Sedan
Originally Posted by Bs_Benz
Hello all.....
So I am currently shopping new custom rims and tires. I own a 09 C300 4Matic luxury. I have stock 17" 14 spoke rims. Long story short a local mechanic shop said if I change the weight of the tire/rim combo that it will throw off the transmission and break the drive shaft.
He went into more detail saying the custom rims were much lighter and always spun and it threw off the electronics in the transmission causing the drive shafts to break. Honestly IDK what to think.

Anybody heard of a rim weight issue or breaking a transmission?

The new 18"rims I'm buying weigh 29lbs. without tire (which will be 245/35R18).

I still haven't found anyone who can supply weight of factory 17" rim.......
in our manuals it says you can +1 size so 18's should be fine lots of people on here go 19's as well so i call bs.
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Old May 13, 2015 | 12:41 AM
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09 C300 4Matic Luxury
Thanks for the reply......
Yeah I get that, I could care less about the rim size I'm talking about weight differential. A set of 16" could weigh the same as a set of 19"s depending on the makeup of the rim and tire configuration.

All configurations aside, will a weight difference screw up my transmission?
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Old May 13, 2015 | 12:57 AM
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MB Marko's Avatar
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From: London ON Canada
2012 C300 4Matic Sport Sedan
Well I just bought wheel made specifically for mb and they weigh considerably less then the factory ones so again I would say no look at the custom wheel posts. all the different wheels others have and there weights are easy to find on google there are tons of different weights on this forum. I spent about a month looking at everyone rims, sizes, and even weights of the rims I liked most and finally I just purchesed some pretty good wheels for my benz so again I would say no
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Old May 13, 2015 | 06:02 AM
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G63
Never heard anything of sort.....a bit of a stretch!!!
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Old May 13, 2015 | 10:03 AM
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From: Long island new york
2002 slk 32 amg, 2013 c300 4matic sport
The only thing i kno, is that will cause premature wear of the wheel bearings and that is if you put wheel spacers. The amount is damage is unknown tho. Could be very little, could be alot.
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