2012 - 2013 S550
1. Blue efficiency means the car has features like low rolling resistance tires, transmission shift adjustments, different steering pump, engine shut down when stopped, etc that are supposed to help conserve energy and increase gas mileage slightly.
2. The camera is likely for the lane assist feature.
3. You don't need the puck after the facelift. You just pair it to your car through COMAND.
4. Nav discs are VIN coded after the facelift. You'll have to have the dealer order and install nav updates.
I wonder if they deleted it to avoid the "Is that a diesel?" questions.
Mine does not have the engine stop at rest feature.
I easily installed the NAV update myself, but you have to get the discs from the dealer.
The only difference that I could see from 2012/2013 was that the Premium 2 package became standard.
The 2012 is an amazing vehicle -- 26 hwy mpg and a hot rod in "S" mode.
I wonder if they deleted it to avoid the "Is that a diesel?" questions.
Mine does not have the engine stop at rest feature.
I easily installed the NAV update myself, but you have to get the discs from the dealer.
The only difference that I could see from 2012/2013 was that the Premium 2 package became standard.
The 2012 is an amazing vehicle -- 26 hwy mpg and a hot rod in "S" mode.








