Thanks - Julian no longer at 321 sadly. I'm in Yelverton, Devon. Local garage happy to fix if he can work out what the codes mean - he's just not a Bongo specialist.

Be gentle, I'm new! I've had my Bongo for about a year and absolutely love it but it's developed a fault and is giving me a real headache to try and fix.
For a while, when driving for an hour or more the gear changes became 'jolty' and occasionally the hold light flashed which went off if I turned ...