Correct tire pressures for 235/45/17?

[Jay 535i]

Sorry, I know it's been asked, but please tell me anyway.

Car is a 535. Don't know if the lighter weight versus a V8 makes a difference.

235/45/17 on all four corners.

[Qube]

SEARCH! *joking* I know I asked that question. Right now I'm running 35 all round I believe.

EDIT: Here you go: http://www.bimmer.info/forum/showthread.php?t=21535&highlight=tire+pressure


Originally Posted by Anthony (M5 in Calgary)
38F/41R IIRC. The 29F is only for the 15" tires - 29 in a 45 series tire is asking for rim damage with a great big PLEASE.

Of course you'll have to play around a bit and see what suits your driving, without going extreme.

[SharkmanBMW]

I did 37 front 235, and 41 rear 255

[Jay 535i]

SEARCH! *joking* I know I asked that question. Right now I'm running 35 all round I believe.

EDIT: Here you go: http://www.bimmer.info/forum/showthread.php?t=21535&highlight=tire+pressure



Of course you'll have to play around a bit and see what suits your driving, without going extreme.

Thanks.

You say I should adjust it according to my driving style. I was always under the impression that there's really only one correct inflation pressure, regardless of 'style'.

If that's not the case, then what driving style would require slightly higher or lower pressures?

[Qube]

Thanks.

You say I should adjust it according to my driving style. I was always under the impression that there's really only one correct inflation pressure, regardless of 'style'.

If that's not the case, then what driving style would require slightly higher or lower pressures?

Not having any scientific explaination other than... "I run it higher on the track and it's more responsive", I'll wait for others to chime in ;)

[ILoveMPower]

I got 235/45/18's, and I'm running about 41-42 lbs all around.

[RobPatt]

...to do like 39psi front and 41 rear...?

[Qube]

The owner's manual actually specifies pressure for +2 size wheels?! Could you show me? Not that I don't believe you, I just want to see how I missed it ;)

[ILoveMPower]

The owner's manual actually specifies pressure for +2 size wheels?! Could you show me? Not that I don't believe you, I just want to see how I missed it ;)

No, but I believe it does give tire pressures for M5's, which run 235/45/17's (i think).

[Paul in NZ]

yes the m5 run those size tyres and those are the presures i run....acyually day to day i like to run a bit lower it just softens the ride a wee bit.The lower pressures does have a toll on the outside edges tho.