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Thank you so much for the detailed how to guide, many years ago I had the throttle actuators fail on a European trip in my E63 M6, 2000 miles in limp home mode wasn't fun with the original goal 200mph!
So I decided to follow your guide and replace the throttle actuators with uprated items as a preventative maintenance measure on my E92 M3. One actuator was an original 2008, the other was a 2017. The 2008 wasn't in great shape missing teeth, the 2017 was already eroding.
After changing them I noticed that in non-sport mode the car had much better pick up. Since my car is one of the oldest, highest mileage variants many of the connectors were brittle but using a WD40 'moisturiser' certainly helped.
Thanks again, your guide did make me laugh a few times, ensuring the frustration was limited. The 1/4" flexible driver was a life saver, and also accessing the engine bay from different angles for the plenum removal.
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