W210 brakes pads should be pretty easy if you've done brakes before.

You'll want 3 new brake sensors (2 fronts and 1 rear).

Cant help with the parking brake.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)