Sorry, I'm not Benzmac (NOT EVEN CLOSE!)
The EZL is your car's electronic brain. On most models, the unit is located on top of the driver's side fender well. It has a black cover on it and is about the size of a Pop Tart.
Okay, Benzmac is probably laughing when he reads this!
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