So here's the scenario...
driving north from Kent in the torrential rain (sunday, 05 oct), so not too fast, in the '05 150 tdci auto estate (22k) and the ****** spanner comes up.
Not knowing at the time what the consequence of stopping and switching off might be we pressed on for the last 95 miles at reduced power (didn't fancy stopping on the M25 anyway).
Of course, get home, switch off, then back on and hey presto! the spanner's gone. Read the handbook and it said it could be a blip- but what's the likely cause?
Just a bit unnerving not knowing that's all. I suppose the stealership can read the brain and tell me the code?