Thats a good advice, I already organized a couple of appropriate fuses.
The alternator delivers 2.2 Kw. That‘s about 180A. Since this starter current will flow only during a short period, but current can rise during cold outside temps, a proper ANL fuse and a remote high power relay seems to be adequate.
Wiring diameter must match.
OE wiring to the alternator is pretty hefty, looks like 90mm2. And thats only about a meter or two.
I do see the risk in a short. If the battery is fully charged it can easily deliver 4- 5000A short circuit current. So the wiring must be fail safe. There is no fire extinguisher handling that current.
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C30 AMG 3.0L engine doing donuts
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