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Old 12-09-2012, 04:33 AM
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Zooks527 Zooks527 is offline
Winding up the M235xi
Location: Mansfield, MA
Join Date: Mar 2009
Posts: 5,659
Mein Auto: 2015 M235xi / 2005 Tacoma
Originally Posted by bwind View Post
So I've been running a bit with the sign on - not completely flat but with lower than usual pressure.

Does that mean I have to replace the tire now?
So, now you're in the grey area.

You can nominally run 50 miles at 50 mph at zero indicated pressure. If you do that, the tire is toast.

Your tire pressure light comes on at something like 10% below normal, so, say 29 psi. If you were running at 25 psi or so for 20 miles or so at 30 mph around town, my guess (note: *guess*) is that you'd be OK. Two 50 mile round-trips to work at 10 psi on the highway at 65 mph, not so.
2015 M235xi coupe, Black Sapphire Metallic, Black Leather, Fineline Stream trim, Steptronic, xDrive, ZPP, ZTP, ZCW, ZDA, ZDB, 5DP, hk w/ BimmerTech amp, Enh. BT
Ordered 3/12/15, Off the line 4/7/15, Delivered 5/14/15

Prior 40 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette / 1981 Subaru GL wagon 4WD / 1983 s10 Blazer 4x4 / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion / 2009 BMW 335i xDrive E92
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