I know very little about cars so please bear with me!!
I have just purchased a BMW 318i (1.9L) V reg (1999). (E46 etc, and don't really know what that means!)
Anyway, i bought the car from a local couple who have kept their car in their garden for the last 2-3 months, so it has not been run at all over winter. When i went to test drive it, it wouldn't start at all, so i had to charge the battery for a few minutes using a battery charge of my dads. it then started OK. when we took it out, for the first mile or so, the car felt as if it was 'missing' ie. intermitent loss of power, but when the car 'warmed up', it then drove perfect.
I bought the car as it seemed to be good value for it's age and mileage (100k) and we thought the 'missing' was just due to the fact it had been stood idle over winter and would clear up. it has been 2 weeks now and if anything it is worse. For example on my way to work yesterday, after about 2 miles, i set off in first to pull out of a junction, and the power loss was quite significant for a second or so. i put my foot down and there just doesn't seem to be a response for a couple of seconds.
again, when i have driven the car for about 3-4 miles, it drives perfectly.
I took it to a garage yesterday to put it on a computer and it found the following 4 errors:
171: Mixture adaptation Upper Limit, Multiplicative
115: characteristic-based cooling electrical fault
122: Coolant temperature sensor signal improbable
125: Lamda sensor upstream of CAT short to earth
My question is, are any of the above serious? and also which one is the most likely to be causing the intermitent power outages i'm experiencing at the start of my journey?