Can I use Alum caps on my TPMS stems?

DrGP · 12-26-2007, 08:42 AM

My son bought me some alum tire stem caps with BMW emblems(not a BMW product) for Xmas. I remember a previous post about not using Alum caps due to them welding or corroding to the valve stems. My son really wants me to put them on. Is their any type of anti seize compound that will help. I also told him that I was reluctant to put them on because kids will steal them. BTW, my son is 25.

BMW MotorSport · 12-27-2007, 01:59 AM

That's a nice gift. I don't see a problem. They didn't make them NOT to work or to malfunction. I would say you would be okay, I have never seen any problems with them. OH and aluminum shouldn't rust.

BimmerFan61 · 12-27-2007, 07:29 AM

I have many friends who use these with no problems what so ever.

wrickem · 12-27-2007, 09:21 AM

I remember seeing a bunch of thread on this. Here's one of them which is the reason I stayed with my plastic caps.

http://www.e90post.com/forums/showth...num+valve+caps

DrGP · 12-27-2007, 12:07 PM

Quote:

Originally Posted by BMW MotorSport

That's a nice gift. I don't see a problem. They didn't make them NOT to work or to malfunction. I would say you would be okay, I have never seen any problems with them. OH and aluminum shouldn't rust.

But alum does corrode. I'm worried about the 2 disimilar metals and H20 being a conductive medium causing electrolysis.

12-26-2007, 08:42 AM	#1
DrGP Lieutenant Colonel 137 Rep 1,914 Posts Drives: Sapphire 335i coupe Join Date: Oct 2006 Location: SE, PA iTrader: (0)	Can I use Alum caps on my TPMS stems? My son bought me some alum tire stem caps with BMW emblems(not a BMW product) for Xmas. I remember a previous post about not using Alum caps due to them welding or corroding to the valve stems. My son really wants me to put them on. Is their any type of anti seize compound that will help. I also told him that I was reluctant to put them on because kids will steal them. BTW, my son is 25. Last edited by DrGP; 12-26-2007 at 09:25 AM..
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12-27-2007, 01:59 AM	#2
BMW MotorSport Banned 100 Rep 2,528 Posts Drives: 95 Avus M3 and 07 E90 Fam Car! Join Date: Nov 2006 Location: So Cal, Simi Valley iTrader: (4)	That's a nice gift. I don't see a problem. They didn't make them NOT to work or to malfunction. I would say you would be okay, I have never seen any problems with them. OH and aluminum shouldn't rust.
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12-27-2007, 07:29 AM	#3
BimmerFan61 Captain 25 Rep 662 Posts Drives: none Join Date: Nov 2006 Location: none iTrader: (1)	. I have many friends who use these with no problems what so ever.
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12-27-2007, 09:21 AM	#4
wrickem Big Beaver Smile 2101 Rep 3,791 Posts Drives: What he wants to Join Date: Mar 2006 Location: lambertville nj iTrader: (0)	I remember seeing a bunch of thread on this. Here's one of them which is the reason I stayed with my plastic caps. http://www.e90post.com/forums/showth...num+valve+caps __________________ ______________________________________________ Current- '21 430 , '19 911, 07 M6 ,'17 Jeep Wrangler, "23 Bronco OBXluxsquatch
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