4Matic dash light on
I have a 1991 300E 4Matic. Just a beginner, but I've experienced 4matic fluid leak for some time. Basically, the light comes on when the 4Matic system needs attention. The dealer is no doubt correct about needed repair, but......low fluid level will also cause the light to come on. Try filling the reservoir with recommended MB fluid. You will probably have to disconnect the battery for 15 minutes or so for the light to go off regardless of the problem. If the light goes off, then I think you can drive it without worry if the dealer also says so. If the light comes back on, then the needed repair is probably the only way to fix it. Fortunately for me, my dealer said i just need a hose... still not cheap.