Low tire Question - BMW 3-Series Forum (F30 / F32)

sr5959 · 11-12-2012, 11:40 AM

Hi guys, had a low tire warning yesterday, and when I checked the tire it was half normal pressure so I think I'll have to repair or replace. I have about 10k miles on the car so do I have to replace both rear tires? I have 17" Conti all-seasons. Thanks!

zeezz · 11-12-2012, 12:42 PM

Do you check regularly? If not, it might have just gotten low enough to trigger a warning, if you fill it up and it deflates more then you have a problem. To my understanding tires will lose a normal amount of air over time though.

chrisny · 11-12-2012, 12:46 PM

Warning comes on way before half and any normal loss should more or less apply to all tires and not be so drastic. Sudden temperature changes can have a big impact, but again, not just to one tire.. Not sure I would worry about replacing both tires to keep wear the same, but I guess that depends on how low the tread is on the one that is still good.

sr5959 · 11-12-2012, 01:33 PM

Thanks guys, I filled it up and was able to drive to work with no further warnings, I think it's a slow leak although I can't see the cause. I will try to get it repaired.

JUSKIDN · 11-14-2012, 10:56 PM

extreme weather temp changes can also make the pressure go up and down

claykin · 11-14-2012, 11:07 PM

Most likely a puncture. Repair it. Just make sure the tire shop has a leverless tire changer. Or, you may end up with rim scrapes.

11-12-2012, 11:40 AM	#1
sr5959 Second Lieutenant Drives: F30 328i Auto Join Date: Apr 2012 Location: Seattle Posts: 230 iTrader: (0)	Low tire Question Hi guys, had a low tire warning yesterday, and when I checked the tire it was half normal pressure so I think I'll have to repair or replace. I have about 10k miles on the car so do I have to replace both rear tires? I have 17" Conti all-seasons. Thanks!
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11-14-2012, 10:56 PM	#5
JUSKIDN Lieutenant Drives: 2013 EBII 328i M Sport Join Date: May 2012 Location: Baton Rouge, LA Posts: 469 iTrader: (0)	extreme weather temp changes can also make the pressure go up and down __________________ It's not illegal. It's frowned upon, like masturbating on an airplane.

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11-12-2012, 12:42 PM	#2
zeezz Private First Class Drives: F30 328i Sport Line Join Date: Jul 2011 Location: Bay Area, CA Posts: 152 iTrader: (0)	Do you check regularly? If not, it might have just gotten low enough to trigger a warning, if you fill it up and it deflates more then you have a problem. To my understanding tires will lose a normal amount of air over time though.

11-12-2012, 12:46 PM	#3
chrisny Captain Drives: '13 BSM 335xi M Sport Join Date: Apr 2012 Location: NY Posts: 822 iTrader: (0)	Warning comes on way before half and any normal loss should more or less apply to all tires and not be so drastic. Sudden temperature changes can have a big impact, but again, not just to one tire.. Not sure I would worry about replacing both tires to keep wear the same, but I guess that depends on how low the tread is on the one that is still good.

11-12-2012, 01:33 PM	#4
sr5959 Second Lieutenant Drives: F30 328i Auto Join Date: Apr 2012 Location: Seattle Posts: 230 iTrader: (0)	Thanks guys, I filled it up and was able to drive to work with no further warnings, I think it's a slow leak although I can't see the cause. I will try to get it repaired.

11-14-2012, 11:07 PM	#6
claykin Major Drives: 2013 335i M-Sport Join Date: Nov 2009 Location: Florida Posts: 1,358 iTrader: (0)	Most likely a puncture. Repair it. Just make sure the tire shop has a leverless tire changer. Or, you may end up with rim scrapes.