Occasional rub in the wheel well when driving over pot holes or bumps

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Old Aug 6, 2017 | 06:46 PM
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Sentinelsf's Avatar
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From: California
2014 CLS550, 20-inch TSW wheels
Occasional rub in the wheel well when driving over pot holes or bumps

I have 20-in rims and I noticed the tires will occasionally rub on the inside of the wheel wells when driving over big bumps or pot holes. I assume this is simply life with the larger wheels? What is it like with wheels larger than 20s? Also - is it worth having someone modify the wheels well lining to avoid the rubbing?


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Old Aug 6, 2017 | 08:00 PM
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2013 Mercedes CLS550 RWD
Originally Posted by Sentinelsf
I have 20-in rims and I noticed the tires will occasionally rub on the inside of the wheel wells when driving over big bumps or pot holes. I assume this is simply life with the larger wheels? What is it like with wheels larger than 20s? Also - is it worth having someone modify the wheels well lining to avoid the rubbing?


If i remember correctly, you are running 255/35 and 295/30 on 20&40 offset?
Ive had a hell of a time getting 245/35 to work correctly.
Some pictures of the rubbing location will be a huge help. Also what brand tires are you using?
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Old Aug 8, 2017 | 02:04 AM
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'16 CLS550
Originally Posted by Acidic Reflux
If i remember correctly, you are running 255/35 and 295/30 on 20&40 offset?
Ive had a hell of a time getting 245/35 to work correctly.
Some pictures of the rubbing location will be a huge help. Also what brand tires are you using?
He's using your former problematic PS4S.
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Old Aug 8, 2017 | 07:28 PM
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2014 CLS550, 20-inch TSW wheels
Originally Posted by harryTAM
He's using your former problematic PS4S.
Yes - Michelin Pilot Sport 4S: Front 255/35/20, Rear 295/30/20
Wheel offset: 20 front, 40 rear

It does not rub during normal driving; but I hear the tires scrape the inside of the wheel well when driving over unusually large bumps - mostly on the freeway.
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Old Aug 10, 2017 | 11:05 AM
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2013 Mercedes CLS550 RWD
Originally Posted by Sentinelsf
Yes - Michelin Pilot Sport 4S: Front 255/35/20, Rear 295/30/20
Wheel offset: 20 front, 40 rear

It does not rub during normal driving; but I hear the tires scrape the inside of the wheel well when driving over unusually large bumps - mostly on the freeway.
Bro two things that can help you.

1. Change the PS4S tires to Michelin PS K1. I've been through this as HarryTAM knows, PS4S are taller than usual tires. It makes them a bit more comfortable to drive on but gives rubbing issues.
2. Try using 245/35/20. I couldn't get 245/35/20 PS4S to work on my CLS. But if 255/35/ works for you than 245/35 should fix your problem.
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