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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 02-20-2007, 02:22 PM   #1
ABTsportsline
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Join Date: Dec 2006
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Question about dealing with TPMS system w/new wheels

I was looking at new rims for my 330xi on TireRack... and i noticed it has a section asking if i want new sensors mounted on my wheels for my tire pressure monitoring system.

Yes, my car has this system.

No, i don't know what i need to do.

I was going to get rims from Modbargains, but i can't get a hold of them when i call. I wanted to ask about the tire sensors through them (do i NEED them on the new wheels? can't i re-use my old ones? can i just nix the system altogether?) I also was wondering how much tires were from Modbargains as when you go to their checkout, it lets you select shipping with tires, but never lets you select tires.

Can anyone shed light on this whole tire pressure monitoring system? what do i need to do? what are my options? obviously i can't change out the wheels on my own in my driveway then..... right?
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Old 02-20-2007, 11:41 PM   #2
Jeuprx-8
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if your car has TPMS, it must have an in-direct system. This system works with your ABS sensors and if your air pressure goes down - it will sense that the wheel will spin faster because the overall diameter is lower than when air is at 100% For these, you don't need TPMS - wheel monitors. The new E90 from 2006+ has wheel mounted monitors (looks like an aluminum valve stem). This is what Tire rack is asking you if you have. But in your case, you don't have these. They would just put these in and charge you whatever it costs for 4, around $350 I believe. These units tell the tire pressure for each tire on the car in real-time, but since yours is an ABS-sensed unit - they will not interact with eachother.
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Old 02-21-2007, 12:28 PM   #3
ABTsportsline
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Quote:
Originally Posted by Jeuprx-8 View Post
if your car has TPMS, it must have an in-direct system. This system works with your ABS sensors and if your air pressure goes down - it will sense that the wheel will spin faster because the overall diameter is lower than when air is at 100% For these, you don't need TPMS - wheel monitors. The new E90 from 2006+ has wheel mounted monitors (looks like an aluminum valve stem). This is what Tire rack is asking you if you have. But in your case, you don't have these. They would just put these in and charge you whatever it costs for 4, around $350 I believe. These units tell the tire pressure for each tire on the car in real-time, but since yours is an ABS-sensed unit - they will not interact with eachother.
thank you very much!
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Old 02-22-2007, 02:17 AM   #4
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For what its worth
The stock wheels from my 2003 330XI have sensors.
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Old 02-23-2007, 04:11 AM   #5
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Our phones have been ringing off the hook so if you get a busy signal just keep dialing until it goes through. We are there every day except sunday to answer calls.
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