[W126 Coupe] Maintenance question-Now Brake Fluid Dot #

[Gerry Van Zandt]

DOT 3 or DOT 4 is fine -- many folks go with DOT4 these days but DOT3 works just as well. I don't think DOT4 was approved & available when our cars were new - believe it appeared in the 1990s.  The main thing is to use either, but NOT synthetic fluid.

Cheers,
Gerry