Quite a lot of thinks can trip 4x4 light many of which you can reset. I get trifecta about once a year from a wearing steering angle sensor.

Resetting an error causing trifecta won’t clear the error until you drive a bit. Did you capture the errors you cleared (I usually take pic with my phone).

+1 on foxwell 5xx. It’s not ∞ easier but it rounds.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)