My BMW turbo has an intercooler after the compressor that is mounted to the side of the radiator on the passenger's side. It's about 18" high, 12"wide, and 4" thick. It is mounted behind and a bit below the headlamps and is large enough that ram air will cool it sufficiently (when in this car if the KKK turbo is compressing, your alwready at 80mph). The engine compartment in a MB would not seem to permit decent airflow to an intercooler unless it's mounted awkwardly behind the radiator. In my BMW, air can flow around the headlamps, because of their strange mounting. MB does this differently. I don't know how Saab or Volvo do this. If you are in need of the diagram of how BMW does this I can always scan in a pict from my owner's manual.

Good Luck, have a good weekend and a safe holiday.

Adam (ATLD)