Replacing runflats

Markolini

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Hi everybody. I am new here ,just quick q about replacing my runflats tyres.can I replace them for standard tyres in my E250cdi amg line 2013?
 

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Hello and welcome,

Yes you can - just keep the correct size and loading
 

Wighty

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As above , yes you can , I noticed a big ride improvement years ago when I changed them on a BMW Z4 .
 

Wighty

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You may need to make different puncture arrangements , if you don't have a spare wheel (because run flats are fitted ?)
 
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Markolini

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Thank you for quick answer,I been told that amg line has different suspension configuration and when you fit standard tyres no runflat,car will loose a grip?
Thank you
 

Blobcat

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Thank you for quick answer,I been told that amg line has different suspension configuration and when you fit standard tyres no runflat,car will loose a grip?
Thank you
You'll lose grip because your tyres are worn out or because you're giving it too much throttle or brake not because you haven't fitted runflats.

As long as you match the sizes and loading you will be fine - grip isn't decided because they're run-flats or not
 

malcolm E53 AMG

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Thank you for quick answer,I been told that amg line has different suspension configuration and when you fit standard tyres no runflat,car will loose a grip?
Thank you

If you fit tyres with the next load rating above the runflats already fitted you will be ok, this will compensate for the softer sidewall of non runflats on the same rating
 
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Markolini

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Sorry for misunderstanding,I meant the suspension is set to be more soft when runflats fitted,so when you fit standard tyres it will not affected driving,mean car will be like a boat on waves?
 

malcolm E53 AMG

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Sorry for misunderstanding,I meant the suspension is set to be more soft when runflats fitted,so when you fit standard tyres it will not affected driving,mean car will be like a boat on waves?

That’s why I suggested you bought tyres with a higher load rating ie, the sidewalls are stiffer. I agree if you bought non runflats with the same load index as you say the sidewalls would be too soft for the suspension
 
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Markolini

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Ok,that's make sense,thank you for your help!@@@
 

LostKiwi

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Even with softer sidewalls it won't be like a boat on the waves. You may even find that being more compliant it will have better grip too.
A common misconception is stiffer = faster.

Looking at the parts catalog there is no distinction between springs or dampers with or without runflats.
 
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Frontstep

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Isn't there something about tyre pressure monitoring to be aware of ?
 

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Isn't there something about tyre pressure monitoring to be aware of ?
Not really, replace the tyres and reset the system. Job jobbed
 

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That’s why I suggested you bought tyres with a higher load rating ie, the sidewalls are stiffer. I agree if you bought non runflats with the same load index as you say the sidewalls would be too soft for the suspension

You should buy exactly the same spec tyre, the non run flat will give a much smoother ride (ask any Mini owner that has swapped), the whole idea of using normal tyres is to improve the ride as run flats tend to ruin it
 

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