tire pressure? what PSI do you run?

[bmw325i4ever]

car: 1999 328i e46

im running 42 PSI with my tires (front and back).

im looking for maximum performance and im trying to find the "sweet spot" PSI. im thinking about 33-35 PSI will handle the best? any ideas?

what PSI are you running?

[stefanom3]

check the label on the drivers door - you will find everything you need to know there. if you want a tad better mileage use the pressure specified for loaded car.

[ezbmr]

Yeah, that is too much, unless you have Continental DW or DWS, then it might be okay. There are some tires with really weak sidewalls.

[pauljcl]

car: 1999 328i e46

im running 42 PSI with my tires (front and back).

im looking for maximum performance and im trying to find the "sweet spot" PSI. im thinking about 33-35 PSI will handle the best? any ideas?

what PSI are you running?

It really depends on your tires. I use Hankook V12 EVOs on my 330Ci, and I've found that 41-42 front and 45 rear is the best combination for me. A later poster had the right comment: start at the 'loaded' recommended settings indicated and work your way up or down to suit. That is what I did. My 'loaded' recommended settings were 39 front and 46 rear. With the OEM Continentals that is what I used - didn't really like any psi settings - the tires were cr.p - and the Hankooks have more flexible sidewalls, so the front wasn't 'tight' enough.

[Starman44]

It really depends on your tires. I use Hankook V12 EVOs on my 330Ci, and I've found that 41-42 front and 45 rear is the best combination for me. A later poster had the right comment: start at the 'loaded' recommended settings indicated and work your way up or down to suit. That is what I did. My 'loaded' recommended settings were 39 front and 46 rear. With the OEM Continentals that is what I used - didn't really like any psi settings - the tires were cr.p - and the Hankooks have more flexible sidewalls, so the front wasn't 'tight' enough.
Paul, saw your post re auto dim rearview mirror, is it as easy as you posted concerning removal and re mounting , I'm kinda scared to do it myself? thanks

[tyronn]

34 front and back works for me

[pauljcl]

Paul, saw your post re auto dim rearview mirror, is it as easy as you posted concerning removal and re mounting , I'm kinda scared to do it myself? thanks

It's difficult to answer - If you do it 'right' with good 'feel', it's a smooth piece of cake. If you apply the pressure wrongly - I don't know what happens. It's been quite a while, and I do not even remember which way is 'off' and which way is 'on'. The first step, of course, is to remove the plastic trim around the 'handle' of the mirror, between the mirror and the windshield. Once the plastic trim is removed, the rest is just turning the mirror (less even than 90 degrees, if I remember right - about 60 degrees). I think that, to break the windshield you must exert a lot more force and be more brutal than anyone should normally be.... So my advice is not very helpful.
If I were you, I would remove the plastic trim, check on-line for instructions for removal and then either follow them or, if unavailable, try to rotate the mirror assembly. Remember that you do not 'just' rotate', you also press it forwards (towards the front of the car). If, at that stage, you feel uncomfortable because it does not move or you feel you are exerting too much force, find an indie or a BMW dealer and see if they can rotate it off for you (we're talking 15s work-time, max, here). Remember also to disconnect the connector of the wires between the car and the mirro. You should not 'pull' the mirror off. Push and turn.
Good luck. Let me know how it went....