Wrong, I think...

http://catalog.eautopartscatalog.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=1YK1CBA9Q1YK1CDOW7&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1987&product=P2015-11766&application=001029523

The part for my 1987 300Dt shows as an 80A fuse.
The strip fuses for the 1987 300TDt do not identify one for the Preglow system.

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1YK1CBA9Q1YK1CDOW7&year=1987&make=MB&model=300-TDT-002&category=All&part=Strip+Fuse

Did they really make two different systems in the same model year for essentially the same engine? I bet not.

-Jim

__________________
1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.