Forgot about that. MB will replace it free of charge under the goodwill program if the car has less than 100K on it. Mine was replaced way back when I had some acceleration/performance problems.
BTW, I am still fumbling with an idle surge problem. The OVP solved my "hot start" issue. You may or may not have success in that area.
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car