transmission on 1994 Mercedes-Benz E320

This car keeps blowing B7 fuse. When that happens I cannot crank the car but the key turns and all control panel works. Only time it starts is when I replace the fuse. Any ideas?

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1 answer
That circuit will need to be checked, something on it is causing the fuse to blow. Circuits often power several items, so it can be any of those items, or the wiring is shorting out. Try to get a wiring diagram and study the circuit to find the possible problems.