schumacher62 Posted October 31, 2010 Share Posted October 31, 2010 my bike has 10,000 miles and was purched in june of 09. during a recent high altitude ride i noticed what seemed to be air bubbles in the front fluid reservoir. on closer inspection, it seems the front brake reservoir is full of gel. its got small bubbles all through it, and i have not opened the reservoir to inspect it more closely. the brakes seem to work find, though i am a bit panicked about the system running a gelled fluid, if it is indeed gelled. my dealer, where i have service done, did not change the fluid at the 6K service interval, and i want to believe the fluid is good for two years before its first change. should i be riding this bike at all, and what are the repercussions of changing the fluid now? has any damage been done and though i think i know the answer, should i get the fluid checked and changed immediately? thanks in advance, paul Link to comment
Limecreek Posted October 31, 2010 Share Posted October 31, 2010 There is a sponge in the front reservoir (19). Is is possible you are mistaking the sponge for gel? Link to comment
schumacher62 Posted October 31, 2010 Author Share Posted October 31, 2010 a sponge. possibly mistaking that, yes. i noticed the problem by seeing a foam of bubbles at the top of the reservoir, but ill take a closer look at the sponge. the reservoir is not clear, but olive oil colored so its a bit difficult to see in there clearly. opening the reservoir would answer the question, but i am hesitant to do that. ill get a flashlight and have a better look. thanks for the info! Link to comment
Firefight911 Posted October 31, 2010 Share Posted October 31, 2010 Don't worry about it. It is in fact a sponge in there. Link to comment
notacop Posted October 31, 2010 Share Posted October 31, 2010 Changing the fluid would not be a problem if it's done properly. Yearly is OK although on some models BMW says every 2 years. Some bikes came with the fluid quite dark, My 800ST rear reservoir was very dark. After having both front and rear brakes done by the dealer the reservoirs have darkened a bit with time. The sponge on yours may have been in answer to some foaming that was experienced because of the flexible stand-off they mounted the reservoir on. Shook itself silly. Link to comment
schumacher62 Posted November 4, 2010 Author Share Posted November 4, 2010 thank you all for the comments. ill have the fluid changed at the 12k service, which will be at around 18 months. thanks again! Link to comment
James Clark Posted November 4, 2010 Share Posted November 4, 2010 Don't worry about it. It is in fact a sponge in there. Does this mean none of my bikes is "spongeworthy? Link to comment
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