Thank you, so far.

Yes I do carry spares.
In fact I had to replace one today after only 2,500 miles (11 months) of service from a new 80 amp fuse.

I am still curious to know the variables that apply to this fuse.
i.e. questions I asked.

THX

__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
********************
1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD