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The Tire Rack's Tire & Wheel Forum
Use this forum to discuss anything in relation to wheels to tires to offsets.
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Old 02-26-2015, 10:46 AM   #1
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Join Date: Feb 2015
Location: Columbus, Ohio
Posts: 21
My Ride: 2003 E46 330xi
Tire Pressure Monitor (TPM) Light

Hi everyone. Sooo, I have an issue with the TPM system. My tires are inflated at 35psi/front and 40psi/Rear and are steadily holding pressure. If I drive on surface streets for about 5 miles or 2 to 3 on the freeway my TPM light comes on. After I shut off the car and start it back up, the light is gone. Haven't had the car in the summer but it's consistent whether it's 40 degrees ambient or -5. Any ideas? I'm still not clear as to whether the 2003 330xi has a sensor on all 4 wheels or not. If so, Could it just be a faulty sensor? Thanks!
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Old 02-26-2015, 10:49 AM   #2
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Join Date: Feb 2015
Location: Columbus, Ohio
Posts: 21
My Ride: 2003 E46 330xi
By the way, I've done the reset action by turning the key to position 2 and pressing and holding the TPM button until the light comes on, then starting the car and driving. Same result
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Old 02-26-2015, 11:03 AM   #3
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Location: dirty south
Posts: 441
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My tmps was acting up the other day. Could be the cold weather, a sensor going out, or the actual tmps signal receiver (idk the actual name of the part). Check tire pressure, reset, if it continues start looking for something that might have gone out.

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