Mini Cooper clubman D, 2009. For a while now, the engine management light has been coming on intermittently. Usually when turning or pulling away from light or a junction. Scans say glow plug fault but we've been advised to ignore that as it can be massively costly to replace them (snapping issues) and they don't really come into effect unless it's extremely cold. Other things have popped up, like filters etc. Had fuel filter replaced. Another is a pressure sensor which is apparently also costly. Someone recently told me that they had a similar problem in an older type 2 and it turned out to be a diode that was getting wet from washer water running down inside and reaching the diode which is under the drivers door in the floor. Has anyone else experience of this? Could it really be a cheap fix? Car goes into limp mode when management light comes on. Stop car, turn off engine and wait 5 mins and all ok again. Any ideas would be welcome.