I was bleeding brakes yesterday and noticed that tank is wobbling left to right. There is no fluid leaks, but not sure if this is normal? Probably 1/2-3/4 inch total movement at top of the cup.Is it normal on our cars? Seems like those #2 rubber mounts is the only thing holding tank to master?
http://www.realoem.com/bmw/enUS/show...diagId=34_0217
Mine is in there pretty solid...
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Mine were leaking, so I replaced them a couple years ago. It was/is a simple press fit. The res sits firmly in place, but is fairly easy to wiggle around by hand if you apply marginal force.
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Rubber grommets are all that holds it so if it wobbles a bit that's okay unless it leaks.
If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. - Mark Donohue
It's pretty normal to be a little wobbly if you grab it. If it's wobbling just from the engine running, the plastic tank will almost certainly break at some point, and that would not be good. If you try to change the rubber gaskets, the tank may also break though.
If yours wobbly - better replace rubber ASAP! Today I was doing some maintenance, decided to finish with fluids and do another brake flush. Guess what. I was unscrewing pressure bleeder cup from brake reservoir and it snapped Brake fluid escaped under pressure. You don't want this mess. Luckily I keep stash of brake clean. It took 2 cans to get all brake fluid off engine bay. So. Don't. Replace those grommets. They are like play do..
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