Ever flushed the brake fluid? It is hygroscopic and needs to be flushed at a max of every few years. Why? When it freezes it is like a box of knives stabbing the o-rings in the master cyl. Not what you want...

SO you could have a failing MC as it is sticking internally or a dying caliper. Both are easy to replace, just a pain in the ass.

I had this happen to my SDL just recently. Pull a wheel and check the pad material, if it is melted (as mine was) you have found your problem.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]