My S1 will not start with the dashboard removed. Sounds liike the immobiliser is stopping from firing porperly. Is this because of a voltage drop being sensed due to having the dials and switches removed?
Thanks for that tip, fired up first time, BUT! It is now down two pots by the sound of it, very lumpy. Refitted the oil and volts gauges but still not running right. Normally it is perfect and runs like a dream. Any ideas anyone?
Flooded/dirty plugs from when you tried to start it with the ignition disabled? If it runs at all, it's unlikely to be anything fundamental and is probably specific to the affected cylinders, and that doesn't leave very many suspects.