Speed limiter issue.
Speed limiter issue.
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Discussion

sjb993

Original Poster:

85 posts

264 months

Yesterday (13:07)
quotequote all
My car is a September 2021 build G20 M340i MHT (pre LCI) with 30,200 miles on the clock.

My car intermittently performs a kick-down and accelerates whilst cruising at the speed set for the speed limiter, without my foot moving on the pedal. I always drive with the limiter set to adopt the current speed limit, and I have set it to have a +2mph tolerance up to 40mph, and a + 4mph tolerance beyond that. I am certain my foot doesn't move enough to cause the kick-down, and the current speed limit display on the dash which is, I assume, the speed that the limiter uses, doesn't increase.

Firstly, has anyone else experienced this behaviour?

Secondly, I would be very grateful if someone would explain how the kick-down mechanism works as I'm beginning to think it may be faulty.

Many thanks.