Wheel Bearing replacement

[E350John86]

Looking for some help! Changing the front wheel bearing of my 2012 A207 and can’t find the preload spec for the bearing. Can anyone point me in the rite direction. Cheers

 

[LostKiwi]

Not sure it has a preload. If it's like other MBs with separate bearings for inner and outer race (which it appears to be) there will be a clearance and slight wobble to the bearing when correctly adjusted.
In general adjust to the point of zero play then wind back 1/6 to 1/4 turn. There should be slight play evident with the wheel on and the hub should turn freely.