What are the standard wheels & tyres for a 2007 BMW 318i SE (E90)?
You need to look in the handbook, or ring your BMW dealer and quote the chassis number, or look under the fuel filler cap for a label, or see if there is a label in the driver’s door recess. There are so many possible variations of tyres on modern cars, depending on the original specification of the original buyer, and the trim level, it is not possible to say exactly what is a standard wheel and tyre. Possible sizes are 205.55.16 or 225.45.17 or 225.40.18 or 235.35.19 and any of these may also be a “Run-on-Flat specification.