smelling

Could someone could up with a reasonable suggestion to over come a sour smell which has developed in my car ? I bought the W169 as a runaround & get to work car during the summer & it was fine without any interior odours, a few days ago I finished work in the early evening & found the...

I have read over a couple of the big threads on here with regards to the above but not sure where to start. I had the filter above the battery cleaned by the garage i got the car from and i have attempted to use one of these air con cleaners that you jam on and leave inside the car with...

looking around in the engine bay I've noted that on the high pressure pump (that black one in front of the common rail) there is an oily and black dust smelling of diesel!! Mainly below this component! I don't know if it's from the pump or the plastic pipes going into! Should I worry? Or is...