I rarely have a 4Matic in the shop but I've got listed car in. I'm studying up on doing a front diff fluid change and it looks like you remove the passenger side axle to allow you to fill. I'll look in the laptop here in a few minutes but if anyone knows off the top of their head it will be appreciated.

Second question is does the electric actuator underneath the torque converter area just unbolt with the three torx that are visible? I'm assuming when you remove it you will open up ports for fluid. Is this correst?

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Jim