Originally Posted by les330
Have 2006 e92 330 auto & just visited main dealer who can check coolant temp on key reader & showed temp at 71 degrees. MPG running at just over 30mpg in London so thought I would check. When I queried defective stats they said that if there were any faults it would show on engine management system, which it hasn't. Basically do stats need replacing?
As far as I know, stats don't generate errors, neither has an electronic connection to it, purely analogue devices.
Low temps cause poor mpg and lack of DPF regens, if the dealer won't fix it, do it yourself for around £100
The number of affected cars, this issue really should be a sticky to raise awareness before hundreds of cars need new DPF's