Hello people,
Thank you for all kind and helpfull comments.
The car has MOT until 10th June 2021, but you are definetely right, it need to be inspected by an expert for my safety.
Steve, I decided to don't repair turbo problem, many mechanics told me that it's not totally failed, The car only may go limp mode on the highspeed, and there should be blowing voice, it is not dangerous for my safety, but of course it will damage to car engine day by day. For now, I just want to change it's oil and oil filter, then drive it 3 months, then sell it or scrap it. Another issue is cambelt, I don't know when it is replaced last time, there is 194800miles on milewatch, probably it needs a replacement but it is also costy, don't want to spend a lot of money on this car, already lost a lot, don't want to raise loss amount.
The private seller never turn back me again. Anyway, I was not hopeful about it.eful about it.
Cheers,
Mustafa