Thread: 2004 E53 X5 4.4i Rear Fog light Install...COMPLETE!
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Old 01-07-2010, 04:42 PM
lemans4.8 lemans4.8 is offline
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Join Date: Aug 2007
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the Trailer Tow Module is required (also known as TCM). I just did this DIY with purchasing just the TTM and everything works! I also ordered a different euro switch, as I have adaptive bi-xenons.
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2005 BMW X5 4.8is - Le Mans Blau

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