Join Date: Dec 2007
Location: Brisbane, Queensland, Australia
Re: Brake Failure warning lights that go off (sometimes) when I turn off and restart
Thanks all for your valuable input.
I finally tried to put the Dot 4 brake fluid in.
I took the rear seat off (well I couldn't quite get it off because the wire that heats the rear seat was connected. I tried trying to release the clear/ white plastic clip but it just wouldn't budge... but anyway, I managed to get the seat out of the way while still connected to the heating wire).
The first photo show that the brake fluid reservior is on the right and right under the frame and next to the tupperware.
I could only access the higher cap (which I'm guessing is for the rear reservior). I had some trouble accessing it and releasing the cap, so I started to try and removed the tupperware. I had to use a five point/star screw head (why doesn't BWM just use regular philips head screws???) and I managed to remove three screws on the tupperware, but then the tupperware still didn't come off. I needed to remove more screws near where the brake peddal is but that needs a large allan key (different from the one needed to remove the rear seat - why doesn't BMW just use a few standard sizes???).
So I resigned myself to being limited to fill the reservior using the top cap (I tried getting my fingers, a spanner and a pair of pliers in but just could not open the bottom cap - which I'm assuming is for the front reservior). Are the two reserviors connected? If I just fill the top, will it flow to the bottom to create a constant level for both front and rear reserviors?
I used a straw to fill where the top cap was (see picture 3) and I didn't fill right to the top but I am certain I filled it past the minimum line. I closed everything up and turned on the key. The wig wag started again (and not the regular wig-wag before the wheels start rolling). This morning on my way to work, the wig-wag started when I reversed the bike out of the driveway. I turned off the key and turned it on again, started the bike and rode off and the wig-wag went away... for a while. When I stopped at a light, I turned off the key again and restarted and a short while later the wig-wag started again.
I see what happens this evening on the way home from work. Prior to topping up the brake fluid, the wig-wag does not come on when I ride home from work - which suggested to me that it was a brake fluid level thing. Until about a week ago, sometimes the ride home would also have the wig-wag. This made me start to think that it could be more than just brake fluid. Brake pads perhaps?
Does anyone have any thoughts?
Should I go and buy the right size allan key(s) and try and remove the tupperware so I can fill both front and rear brake fluid reserviors?
Do I need to stop riding till this is resolved?
Any advice would be much appreciated.