Owners Forums for Ford and Volkswagen MPVs / SUVs

I have a MK3 Ford Galaxy '08 Automatic TDci. I live in Liverpool. I have problems with the car cutting out intermittently, which is a nuisance. This has been happening for the good part of a year now. I have noticed that it will cut out around 2-6 times a day to and from work (20 mins drive each way). It will only last for up to 3 days, then will be fine for up to a month, then will happen for 2-3 days. Then be fine again. I have noticed sometimes it starts after i have accelerated hard, it will stutter, lose power for a second, gain it back for a second, that will happen a few times, when i accelerate during this, puffs of grey smoke comes from the back (exhaust i assume) for a second or 2. Once i start slowing down after this (30mph or less) the car will just cut out and have no power. I can quickly switch off the engine and start the car back up, even when i am coasting at that speed when it cut out.

I also recently had a problem where the (engine management) would pop up saying 'Engine Malfunction' and then at the same time 'Transmission Service Required' and be stuck in limp mode until
I switch off the engine a d start it back up again. I took it to a transmission specialist and they found it to be the 'flap' on the turbo was very sticky. They have since cleaned it up and that seems to have cleared that problem up.

The cutting out coincidently happened around the same time my parking sensors stopped working, the rear passenger side is faulty and i have yet to get this fixed. Just wondering could something be tripping something out? But it would not make sense since the cutting out occurs intermittently over a couple of days then be fine again for a few weeks.

It recently cut out when i started driving on the motorway, making me think it was because i accelerated hard while joining the motorway. It happened once. Had to go on hard shoulder, then it cut out, then switched off and back on the engine. Was fine after that. That was a few days ago and since then I have been driving without much acceleration and it hasn't cut out yet.

I know it's hard to say because it is extremely intermittent with many different factors. But some advice would be appreciated.

Thank for your response. When I took it to the garage for the 'Transmission Service Required' message, they did a diagnostics then. See the attachments for the report. Not sure what most things mean.