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#1
11-08-2007, 10:42 PM
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reprogramming required when upgrading to 20s???
it's not really about adjusting the suspension but more on the vehicle's software management system.. he also emphasized the importance of having them install, mount, and balance the new wheel/tire package... (along with the TPM sensors) any comments?? is this required?? don't have cost estimates but it doesn't sound like they do it for cheap!!
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2012 X5 50i M-Sport 2014 X3 35i M-Sport 
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#2
11-08-2007, 11:31 PM
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ill find out next week for you since im upgrading to 20's as well.
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1st 2008 X5 3.0 in alpine white/saddle brown in USA (had)2001 x5 3.0i dinan engine software,dinan trans software, dinan throttle body
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#3
11-09-2007, 12:41 PM
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I think your dealer is trying to pull one over on you. I changed my 20's recently to my 19's for winter all that has to be done is to reset the TPM through Idrive. All the wheel sizes have the same circumference the only difference I can see is rolling resistance with larger tires/wheels. However, the brakes rotors on the 4.8i are larger than the 3.0i. Call another dealer and ask them.
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2013 BMW X6M-current 2013 Audi S4-current 2007 BMW X5 4.8i (E70)-sold
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#4
11-09-2007, 12:49 PM
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I think it may tie in with what you see in the invoice when ordering 20's: it'll say "Increased Top Speed Limiter" ... I think this allows it to go a little more to the top end (if your in GErmany on the Autobahn I guess)!
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#5
11-09-2007, 11:49 PM
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i called my dealership and the service mgr said nothing is needed
to be done to the x5...
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1st 2008 X5 3.0 in alpine white/saddle brown in USA (had)2001 x5 3.0i dinan engine software,dinan trans software, dinan throttle body
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#6
11-10-2007, 01:43 AM
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dealer must have meant TPM sensors.... funny how they try to act technical and stuff...
i'm sure that's what he meant... thanks for the replies. I was planning on getting the 214 20s later (replica or OEM, whichever I find first and at a descent price) and wanted to make sure there weren't any issues with swapping them out myself. i guess as long as i have them installed and balanced, and with the TPM sensors, i'll be fine..
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2012 X5 50i M-Sport 2014 X3 35i M-Sport
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#8
11-11-2007, 08:40 AM
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I've never heard that....ever. Never did any 'adjustment' to my X when I switched between 20's and 18's yearly.....
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An unwavering defender of those I see worth protecting. "promote the general welfare, not provide the general welfare" We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
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#9
11-12-2007, 10:54 AM
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I was under the impression you couldn't put on wheels any wider than the original ones you had... I guess this isn't true? Does anybody know what are the maximum height and widths you could put on? I'm just curious, not looking to put 26" wheels on...
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#10
11-12-2007, 11:01 AM
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Quote:
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2013 BMW X6M-current 2013 Audi S4-current 2007 BMW X5 4.8i (E70)-sold
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