Hi Guys whats the difference between the Factory Mercedes plug and the Aftermarket Bosch plug.
Ive read that Bosch actually make the OEM plug, but everyone recommends the OEM plug.

Can someone give me some insight please.

Before you say search i already tried that

The only difference is that you pay more for the Mercedes branded plugs. I got the Bosch replacements for my car and compared them side-by-side when I replaced mine... they're the same. I've had no problems running them.