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BMW 5-Series (G30) Forum 2017+ BMW 5 Series (G30) General Discussions G31 Touring SE vs M-Sport Comparison help

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      05-01-2018, 04:06 AM   #23
ZigmundUK
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Drives: G30 530d MSport x-drive
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Originally Posted by EEnBEE View Post
Quote:
Originally Posted by morellomax View Post
That is a bit surprising. I have run Primacy 3's on 18s (on my last F10) and they were fine, pretty much identical for ride and noise to other tyres on the same vehicle (Dunlop SportMaxx RT's, Uniroyal Rainsport 3's).

Are the tyre pressures correct ?
Yes I was surprised too, and pressures were my first thought. They were indeed marginally higher than the P7, so I reduced them for the sake of equality. No difference. Much harsher than the P7.

On the wheel sizes, g30 and g31 are the same so wider rims at the rear are fine. One issue I was less clear on was winter tyres on the 662ms. BMW recommend all square 245/45 r 18 for winters but the 662m rims are staggered. I am told it should be ok to fit these on the wider 9J rim at the rear, but I’m not so sue. To get round this I might use the 684s supplied with the car for winter as they are 8J all round, and use the 662 for summer - I prefer their look anyway.
I run the 19" staggered setup with winters and summers and no issues with ride quality. Come to think of it I need to swap back to summers when I get the chance!
__________________
Gone: E87 120d SE Auto (M47TU2D20) Sparkling Graphite
Gone: F31 330d M Sport (N57D30A) Estoril Blue
Gone: E61 520d SE Auto (N47D20) Titanium Silver
Running: G30 530d M Sport (B57) Mediterranean Blue
Running: F15 X5 40d M Sport (N57) Glacier Silver
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