Hi, I have just purchased a a160 diesel. On driving it back I noticed a bas and esp message on the dash. the car does not seem to have a lot of power and was very laboured uphill. It did not seem to want to go over 2000rpm and 65mph. I was informed that the power steering sometimes stops working but on travelling 40 miles, it worked very infrequently. The previous owner had a new pump from a mercedes garage fitted but this did not correct it. As you can probably tell, I know very little about cars but I am worried that I will be damaging the car if I drive it. I am reluctant to take it to a dealership as my wife is the only other person who I like to 'have my pants down'. Oh, there is a srs message on the dash also.