I'm planning on getting S class wheels on my 2014 E550 4matic. The wheel sizes are 8.5x19 et38 front
9.5x19 et38 rear with 245/35-19 and 285/30-19 tires.
Any comments or suggestions especially on the offset ?

thank you,

 

Those will definately fit. I have S550 wheels, 19x8.5 +36 and 19x9.5 +43.5 and the fitment is great. I used this site below (this link is for my rears) to find out which will fit. Mine is pre-facelift though, so I'm not sure if the dimensions for the spacing is the same or not. Same chassis code, so I'm assuming yes. I found the spacing measurements from a YouTube video

Rears: https://www.wheel-size.com/calc/?whe...cl=30mm&sr=0mm
Fronts: https://www.wheel-size.com/calc/?whe...cl=14mm&sr=0mm

 

/30 profile tires are brutal on the street. watch out for pot holes and driveway lips. Keep your tire pressures high.

 

I agree here, /30 profile tires are too thin but those wheels are cool