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View Full Version : Sport Mode (Steptronic) Not Working - Solved



ChrisMelnyk
06-06-2024, 05:24 PM
I did a bunch of searching beforehand, and never saw this mentioned explicitly in the e39 forums.

So I'm putting this out there for anyone that has a similar issue, because apparently some people replace the shifter unit (which is a lot of work) when it's only a wire broken.
Also a used unit may be close to breaking too.


These were my symptoms:

- No DS showing on cluster, and not able to go through the gears manually

- The indicator lights on the bezel near the shifter did not light up

Theoretically, you may even lose drive, reverse etc.... depending on what wires are damaged.


Problem:

Over time, a wire moves back and forth too much and breaks:
(the green one right near the harness tape)

725797


Solution:

Repair the wire and reroute all the wires, so that they can't break again.
Also, inspect all other wires. I had 4 others with broken insulation, but no broken wires.
I de-pinned each wire from that connector so that I could slip over heat shrink tubing to protect them.


Apparently this is really common on the e90, e91, and e92 platforms, so here is a video that explains it:
https://www.youtube.com/watch?v=M10vT4gwy_4

It's effectively the same for the e39.



Chris