2022 GLS 450 Block Heatter
#4
MBWorld Fanatic!
I would call the Mercedes dealer about this one, and might be worth the mercedes price premium to have a dealership do this for you and nobody else. I say this because of the insane electronics on this motor, including the electric drive running through it. Adding something that passes an electric current through it so close to something that may not like it, might be a risk these days. Its al least worth the 30 minutes of your time to ask them about.