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Hello, I have a 2005 Cayenne S with PCM2.1 The PCM had SW Version 1.0 ( Standard Production ) at first. I used 000.043.205.47.003 and was able to successfully upgrade from SW Version 1.0 ( PCM software version 04035AD1/0304, Standard Production ) to SW Version 2.1 ( PCM software version 04202MD1/1805, upgrade version Model Level A ). Then, I used 000.043.205.47.002 and successfully upgraded from SW Version 2.1 ( PCM software version 04202MD1/1805, upgrade version Model Level A ) to SW Version 3.1 ( PCM software version 05024BD1/1705, upgrade version Model Level B ). I also used 000.044.901
Hello, I own a 2005 Cayenne S that has the I1D8 option ("Preparation for Detachable Trailer Coupling USA"). Can anyone clarify what I need to actually install a trailer hitch? For instance, is the hitch mostly factory installed or do I require a major upgrade to do it? I already read the TSB6690, but it seems that it does not apply to someone that already has the I1D8 option installed at the factory (the TSB6690 seems to pertain to a dealer installing the hitch from scratch). I'd be grateful for any assistance fellow forum members may be able to provide... Thanks in advance!