I'm not familiar with MB wheel bearing grease. I just know it's green. Like I suggested earlier, I wouldn't be surprised if it's just the same formulation (and perhaps custom-dyed) grease that's commonly used elsewhere.

Yes, I use a dial gauge for my wheel bearings. I do this for two reasons - one is I know how critically important proper axial play is for the life of an automotive wheel bearing, and two, I have access to a gauge set at work. When giving advice on this board, I'll tell people to use a dial gauge, but then I'll also instruct them how to approximate a good setting without one because the reality is that not everyone wants to shell out the money for a dial gauge set, yet they will go ahead and service their bearings. And a propoerly executed backyard approximation on the axial play will do just fine in most cases.

There's been a lot of emphasis in this discussion on the grease used in bearings. From my end, forensically looking at failed bearings, I find that seals play an even bigger role when it comes to lube problems. A seal failure will allow water and contaminants to come in, and grease to purge out.

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95 E320 Cabriolet, 169K