2012 E350 4 matic tires
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Junior Member
Joined: Jun 2014
Posts: 40
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1997 S320
2012 E350 4 matic tires
I just bought a 2012 E350 Luxury sport and the current owner just had to replace one of the rear tires because there were a couple nails that the tire dealer said could not be repaired. So he had a new tire the same size and brand as the other tires installed. The existing tires have 60 percent of their tread left and my question is will it be a problem having one tire with a 100 % tire tread and the other tire with 60% cause any problems with the 4 matic becuase the new tires will have a slightly larger diameter than the 60% tire . Both on the rear.
TIA
Dan
TIA
Dan
Super Member
Joined: May 2018
Posts: 505
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From: Sammamish, WA
2011 E350 Wagon, 2010 GL450
No kidding? I would have thought that'd be too big of a difference. I know some tire installation places will shave down the new tire to match the old ones. Any tire place worth it's salt should be able to measure and advise, though.
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Joined: May 2012
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From: Pepper Pike Ohio
24 GLS580 '23 E450 4matic 12 E350 4Matic
I just bought a 2012 E350 Luxury sport and the current owner just had to replace one of the rear tires because there were a couple nails that the tire dealer said could not be repaired. So he had a new tire the same size and brand as the other tires installed. The existing tires have 60 percent of their tread left and my question is will it be a problem having one tire with a 100 % tire tread and the other tire with 60% cause any problems with the 4 matic becuase the new tires will have a slightly larger diameter than the 60% tire . Both on the rear.
TIA
Dan
TIA
Dan
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
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From: V E G A S
1922 Ford Model T / no OBD
Per forum members experience 3-4% difference in rpm between the wheels is just fine, when I drove on compact spare on couple of occasions and regardless it being much smaller, no lights.
You can calculate % of difference in the way like 40% of thread = 4mm, . Divide it wheel radius and you have your number.
But theory doesn't work well when it comes to tires.
Tires are manufactured with very loose tolerances and I have been catching tires from the same manufacturer, same nominal size, yet coming from different mold they had 5% difference in rpm straight from the factory.
So final test is on the road. Usually first thing to indicate problem is CC. Try if it holds at 60mph. If it does - you are good.
You can calculate % of difference in the way like 40% of thread = 4mm, . Divide it wheel radius and you have your number.
But theory doesn't work well when it comes to tires.
Tires are manufactured with very loose tolerances and I have been catching tires from the same manufacturer, same nominal size, yet coming from different mold they had 5% difference in rpm straight from the factory.
So final test is on the road. Usually first thing to indicate problem is CC. Try if it holds at 60mph. If it does - you are good.
