Hi, I own a 2007 ST which over the last fortnight has gone from being solidly reliable to a total pain in the ! I work nights where there's no public transport, there's all during the day so i really need the car for work. One night as i turned the ignition on i got a very quick message of Steering System Failure followed by Reduced Acceleration neither of which actually stayed on or were true ? The rest of the week went by & the car was fine, started no problem & drove no problem & certainly no problem with the steering. Then suddenly on the sunday night of the next week the Steering Assist Failure appeared & was then followed by Engine Systems Fault & the car wouldn't turn or start. As i've said i work where i need the car so i had to call in & say i wasn't coming in. Went to the car an hour or so later(22.00) & nothing & the same at 00.00 ? At 6am i went out & the car fired up as normal, no messages, no red light no nothing. Turned it off & started her again & as before it did everything it should ? That was actually two sundays ago & i took the car to work as normal & it was fine until the friday morning just gone. I leave work at 6am & she wouldn't start again & yet again the two messages came up, my teamleader who wanted to give her beemer a run ran me home where i had a quick look at various sites which seemed to suggest lack of power steering fluid, corroded earth connector or steering system fuse or of course the actual steering pump ? Now other than not starting i've had no issues with the car so didn't believe it was the pump as she still, inc this morning, steers beautifully with no whines or jerky steering ? Took some fluid & four buses & four bloody hours later got to where i work which is a 13 mile journey !! Gorgeous weather, car itself was nice & hot & started no problem & i topped up the fluid back home just to be safe even though it needed hardly any ? Car behaved itself over the weekend on the two shopping journeys i had to make & then i had to go to work again last night. Red light straight on, Steering Assist Failure, Engine Systems Fault but the car started although it did say Reduced Acceleration which to a degree at the moment i can live with. Got to work, turned car off & then started her again & it was still red light, reduced acceleration but ok had to go into work. Came out at 6 this morning, no start, didn't want to know ? Tried two or three times with no response other than the red light & messages again, sat there for about 10mins & she fired up no problem, no red light, no reduced acceleration everything was as it should be ? Now one thing i've tended to notice about this episode & maybe a bit before all this is that my ST doesn't appear to like the rain or sharp frosts, or at least i believe the electrics don't ? All the above events have happened only in damp, wet or frosty conditions ? Am i just unlucky in that it's an electrical issue rather than actual steering etc ?