Here's the address:
Easier to find than I thought. In case the link below doesn't work, i entered the following into the search engine: "bulbs instrument cluster e320"
W210 Instrument Cluster Light Bulb Replacement
I too did the clotheshanger tool but what really worked for me was removing the left speaker grill and vent and getting my fingers in there to push the cluster housing out from the rear. Popped out. There are a couple of rubber coated clips to secure/dampen vibration. They make the task a bit more challenging, but not by much.
Best of luck!:p
300SD ('81), 190E ('89), 420SEL ('86?), Jaguar XJ6 VDP ('96), E320 ('95), Jaguar XJ6 ('97), E320 [S210] 4matic wagon ('98), Nissan Maxima SE ('02), DeVille ('93), BMW 325 ('03), LS430 Ultra ('01), Avalon Limited ('05), S430 ('06), MINI Cooper ('05), Toyota Camry ('07), Hyundai Azera Limited ('07), E350 ('06), LS430 ('05)
Nissan Versa ('08), S430 ('03)