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E350 Coupe handling problem.

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Old 09-16-2021, 01:31 PM
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E350 Coupe
E350 Coupe handling problem.

Hi all.

I've got a 2010 E350 Coupe.
I've just had some new tyres fitted, Uniroyal rain sport 5's, but they seem to have completely ruined the feel of the car.
Going around a long bend at 60mph seems to have become dangerous, it's almost as if the tyre is not gripping at all, the traction light also seems to be coming on quite alot now. The back end feels all over the place. I've been assured these tyres are the best on the market, and the fitter also tested the car and said he can't feel anything.

Has anyone had this problem before? It wasn't like it on the old tyres, and I've checked the suspension components for movement but there isn't any.

ThankyouAlfie
Old 09-16-2021, 03:23 PM
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Allie,

Check the tire pressure. If needed adjust to the recommended.
Old 09-20-2021, 10:19 AM
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E400 W207 C320 W203
Uni-who??
Old 09-21-2021, 12:10 PM
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Old 09-21-2021, 05:54 PM
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Looks like its probably just a characteristic of the tire.

https://www.tire-reviews.com/Tire/Un...ainSport-5.htm

There are several more reviews I was able to find with similar conclusions. Seems it's a great wet weather option, but doesn't quite cut it as a performance tire in the dry.
Old 09-23-2021, 11:49 AM
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here =>

Latest Tire Test Results

2021 ADAC Summer Tire Test - 205/55 R16 - 13th of 15 tires
  • Positive - Good in the wet, relatively low fuel use.
  • Negative - Weak in the dry, high wear.
  • Overall - The Uniroyal Rainsport 5 has significant weaknesses in the dry with imprecise steering, low grip, and long dry braking distances. The RainSport 5 is still good in the wet, with short wet braking and high aquaplaning resistance. The tire also has low noise, low rolling resistance, but high levels of wear

Based on that those would be a down grade from most tires, but very much so from high performance summer tires
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Old 09-23-2021, 11:56 AM
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Originally Posted by WRC-LVR
here =>

Latest Tire Test Results

2021 ADAC Summer Tire Test - 205/55 R16 - 13th of 15 tires
  • Positive - Good in the wet, relatively low fuel use.
  • Negative - Weak in the dry, high wear.
  • Overall - The Uniroyal Rainsport 5 has significant weaknesses in the dry with imprecise steering, low grip, and long dry braking distances. The RainSport 5 is still good in the wet, with short wet braking and high aquaplaning resistance. The tire also has low noise, low rolling resistance, but high levels of wear

Based on that those would be a down grade from most tires, but very much so from high performance summer tires
Agreed.
Old 09-23-2021, 07:03 PM
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I just googled your tire and this is the first thing that I saw.

Overall - The Uniroyal Rainsport 5 has significant weaknesses in the dry with imprecise steering, low grip, and long dry braking distances. The RainSport 5 is still good in the wet, with short wet braking and high aquaplaning resistance. The tire also has low noise, low rolling resistance, but high levels of wear.”

Seems to be characteristic of the tire.

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