Les
Check the float is working properly. It's in the reservoir cap. mebbe the float is sinking or the wiring has gone bad. should be two wires on the cap top.
No wires on res cap on my model. No wires anywhere near res cap.
From a point at sea, to the circles of your mind, this is les.watson:
Then you don't have a brake fluid warning light.
My '87 GLE has no such light. It has a brake circuit failure light, a parking brake light, and (if I had ABS) an ABS malfunction light, but none for brake fluid level (some 740s did).
If you are certain the light you are seeing is brake related, then whatever it is needs investigating. It's possible one of the two brake circuits has failed (usually a failing master cylinder), but I would expect to feel a softer brake pedal with this. There is not necessarily a leak with this, though sometimes brake fluid can soak the carpets around the pedal.
Just to clarify, the order of lights on my dash (taken from the handbook - not all are relevant) from the extreme left is:
If the pedal has become soft I would suspect the master cylinder. There are two brake circuits and if they don't have equal pressure the brake failure light will come on. The brake failure/pressure difference valve could be bad.
I had my light come on and was able to fix it by just bleeding the brakes. YMMV
Brick_0
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