Time Pressure for 2006 325i

farhany · 02-03-2010, 05:41 PM

Hi folks,

My car came with Run Flat Tires that are of spec:

205/55R16 91H

According to the BMW manual, I should be inflating my front tires at 33 psi and rear tires at 44 psi. Is this correct? Am I reading the BMW manual wrong?

Help!

Thanks,

Farhan

wuchao1 · 02-03-2010, 08:39 PM

NO! I have the same car and I do 34psi front and 39 rear. and thats actually higher than what it should be. The sticker on the driver side door says for 16" should be 29 front and 34 rear.

Kylekuu · 02-03-2010, 08:56 PM

i remember reading in the manual, that tp's depend on type of tires, speed you normally drive + weight of passengers. there was several instances where it doesn't match up with the stick at the door, so if it really bothers you alot and matters alot, i would look at the manual

farhany · 02-03-2010, 09:10 PM

Quote:

Originally Posted by wuchao1

NO! I have the same car and I do 34psi front and 39 rear. and thats actually higher than what it should be. The sticker on the driver side door says for 16" should be 29 front and 34 rear.

If the manual doesn't say that and the sticker either, then what are you basing your tire pressures on? Comfort?

Thanks.

Gary@TireRack · 02-04-2010, 11:06 AM

Base model 2006 325i tire placard (sticker) shows 29/35. Sport package cars show 30/35. XI sport wagons show 32/38.

wuchao1 · 02-04-2010, 11:26 AM

I read from somewhere saying that when driving in winter its better to have the tp about 3 psi higher than what it should be. So when its cold the tp wont get too low because of the temp. Well that might be wrong but personally I just like to have the tp a little higher so the car feels a little lighter (when driving around in the city...)

wuchao1 · 02-04-2010, 11:30 AM

btw im using non run flats.. so it might be better for you just follow what the placard says..

farhany · 02-04-2010, 11:46 AM

Quote:

Originally Posted by wuchao1

btw im using non run flats.. so it might be better for you just follow what the placard says..

Yeah, I'm thinking I'll just go with what the manual says:

33 psi and 44psi

I think a bit more pressure feels better on the road especially when going over curbs, and especially when coming down one...

farhany

mike-y · 02-04-2010, 12:05 PM

I remember 29/35 on my door placard, though I've found that ~33/36 gives me sharper steering and a little more front end bite on turn-in.

02-03-2010, 05:41 PM	#1
farhany New Member 2 Rep 11 Posts Drives: BMW 325i Join Date: Dec 2009 Location: Aurora iTrader: (0)	Time Pressure for 2006 325i Hi folks, My car came with Run Flat Tires that are of spec: 205/55R16 91H According to the BMW manual, I should be inflating my front tires at 33 psi and rear tires at 44 psi. Is this correct? Am I reading the BMW manual wrong? Help! Thanks, Farhan
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02-03-2010, 08:39 PM	#2
wuchao1 台北台灣 44 Rep 619 Posts Drives: 2004 MazdaSpeed Miata Join Date: Apr 2009 Location: Michigan State Spartans / Taipei iTrader: (5)	NO! I have the same car and I do 34psi front and 39 rear. and thats actually higher than what it should be. The sticker on the driver side door says for 16" should be 29 front and 34 rear.
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02-03-2010, 08:56 PM	#3
Kylekuu Captain 30 Rep 679 Posts Drives: 08 328xi, 84 318i Join Date: Oct 2007 Location: Kenosha, WI iTrader: (0)	i remember reading in the manual, that tp's depend on type of tires, speed you normally drive + weight of passengers. there was several instances where it doesn't match up with the stick at the door, so if it really bothers you alot and matters alot, i would look at the manual
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02-04-2010, 11:06 AM	#5
Gary@TireRack Moderator 372 Rep 4,742 Posts Drives: Formerly 1995 M3 Join Date: Oct 2006 Location: South Bend, IN, Tire Rack HQ iTrader: (2)	Base model 2006 325i tire placard (sticker) shows 29/35. Sport package cars show 30/35. XI sport wagons show 32/38. __________________ Gary. Tire and Wheel Forum Moderator. Tire Rack Sales Rep Gary@Tirerack.com http://www.tirerack.com/a.jsp?a=AH8&url=index.jsp Please refer to 'Gary/E90 Post' as your previous contact when you order online to help support this forum.
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02-04-2010, 11:26 AM	#6
wuchao1 台北台灣 44 Rep 619 Posts Drives: 2004 MazdaSpeed Miata Join Date: Apr 2009 Location: Michigan State Spartans / Taipei iTrader: (5)	I read from somewhere saying that when driving in winter its better to have the tp about 3 psi higher than what it should be. So when its cold the tp wont get too low because of the temp. Well that might be wrong but personally I just like to have the tp a little higher so the car feels a little lighter (when driving around in the city...)
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02-04-2010, 11:30 AM	#7
wuchao1 台北台灣 44 Rep 619 Posts Drives: 2004 MazdaSpeed Miata Join Date: Apr 2009 Location: Michigan State Spartans / Taipei iTrader: (5)	btw im using non run flats.. so it might be better for you just follow what the placard says..
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02-04-2010, 12:05 PM	#9
mike-y just another bmw douche bag 196 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	I remember 29/35 on my door placard, though I've found that ~33/36 gives me sharper steering and a little more front end bite on turn-in.
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