6/6/2023 0 Comments Bmw ccc repair service near me![]() ![]() I am not sure about the difference of the unit L7 vs not L7. You can code either one into any year car that had CCC so both will work but if you change from one with buttons to without or vice versa you have to change a little coding to reflect the difference with the buttons. The CCC with the buttons is slightly better, it is a little faster processor etc, still old and slow but less so. ![]() The preset buttons where an upgraded CCC unit, the earlier units did not have the preset buttons the later ones do, I changed sometime in 2007, my 06 didn't have them my 08 did all CCC.
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