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I was bleeding brakes tonight using a motive power bleeder and once I pressurized the reservoir, it started leaking around the seals where the reservoir meets the master cylinder. Has anyone had this problem? Can I still bleed using the old fashioned pump the brakes? Part number 2 here:
http://www.realoem.com/bmw/showparts.do?model=1113&mospid=47309&btnr=34_0221&hg=34&fg=25 
Yes, you can still bleed the brakes via the pump method.
Make sure the reservoir is fully seated into the seals. if it is, replace the seals.
The seals #2 seem to dry out over the years and leak a bit especially when pressurized. At least replacing them is not a huge deal.
thanks guys, I figured those old seals are the problem. Luckily my local dealer has them in stock. Unluckily, I just wasted a bottle of Motul RBF600 on the job. I’ll probably just pick up some Valvoline synthetic fluid as I’ve heard it’s very similar for cheap.
Those plugs/seals just pop out fairly easily?
Yes. Just rock side-to-side while lifting the fluid reservoir upwards and it should pop off, and the seals are not hard to work out of the bores in the M/C. Don’t be a gorilla as it’s probably possible to snap off the plastic fittings on the bottom of the reservoir.
ctbimmer wrote:
That’s a good tip for everything plastic/rubber on these cars. I can’t count the number of small stuff I’ve cracked getting impatient.
kmsnsx wrote:
[quote]I’ll probably just pick up some Valvoline synthetic fluid as I’ve heard it’s very similar for cheap.
[/quote]
Be careful with the Valvoline. Their new synthetic stuff is not the same that they had a year or two ago. I’m not sure why they made the change, but the current fluid has a much lower boiling point than the old fluid. I really liked the old fluid so I was bummed!
Prestone has a new “high performance” synthetic brake fluid that you can buy pretty much anywhere. I’ve used it at 2 events now and it seems as good or better than the old Valvoline. Make sure it’s the “high performance”.