Hi all, I have a 2008 118i, I purchased this in July 2018, with 69,000 miles on the clock, ever since I have had the car it has consumed oil, on average I would top it up with a litre of oil every 1500 miles, sometimes between 1000-1500 miles, on one and only one occasion it managed to do 2500 miles before asking for more oil, but twice now it has asked for oil just under 800 miles. The car is nearly on 87,000 miles and am worried it will carry on getting worse. I have had the PCV valve replaced as I've read that can be a possible cause but this has had no effect. Is there any way to determine the cause of this, I imagine the cost to repair could be quite high.
The car is not without its other problems, the catalytic converter is in need of replacing and finding out what has caused it to fail in the first place remains the challenge, I think its probably why the last owner had got rid of the car as the mechanic I've got looking at it can see someone has played about with it, the cat that is on there now is actually older than the car itself which means its had cat trouble before, the car does occasionally misfire. Sometimes it will cut out completely when driving it for the first few miles of a journey, only to start right back up again and drive with no trouble. The spark plugs were changed a year ago and didn't look to good so were recently changed, even though they were only a year old. Am told the fuel pump could be a cause of some of my issues, such as the car cutting out, it could be why the car is lacking power which it has been like for quite a while, the cat could be part of that problem too though.
I have had the car running with a diagnostic machine connected, as soon as the throttle is touched it throws up a fuel pump plausibility fault code, is there any hope with this car being fixed?