There's a clicking / ratcheting sound coming from inside the B-pillar of my W210, next to my left ear - hugely annoying. How do I remove the large, elongated trim piece covering the drivers-side seat-belt mechanism so I can inspect?

Thanks!

Remove Both front and rear door sill covers..remove the outer door seal on the body for the front and rear doors..slide the front seat forward..and pop off the B pillar cover..be carefull about the seat belt height slider, remove the seat belt at the seat anchor..Oh and Order a replacement seat belt retractor..the clicking is a known problem..seen several...Do this with the Key OFF!

Wow, thanks. My car is still under warranty - will the dealer replace this?