Alec,
Go for it. It's actually kind of a fun job. I used a 1/4" driver mostly because it gave me a bit more room. The hardest part was trying to keep the gasket clean when I put it back together so I wouldn't get an oil leak. It should be pretty much the same job as on my W124.

Randy (Cow Hollow)

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LRG
1987 300D Turbo 175K
2006 Toyota Prius, efficent but no soul
1985 300 TDT(130K miles of trouble free motoring)now sold