The engine in a 98 W210 may look a bit familiar to a W124 diesel owner, but the is nothing remotely familiar about the rest of the car.

The computer/electrical/transmission level of sophistication is exponentially greater.

The W210 requires some significant investment in diagnostic tools, you're just not going to get very far with a meter and the shop manual.

Jim

__________________
14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles