06-05-2022, 08:40 PM | #1 |
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Brake Fluid / Clutch Reservoir flush
Howdy all, when flushing and replacing the brake fluid do I have to do anything special with the clutch as well?
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06-05-2022, 10:13 PM | #2 |
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I would recommend flushing the clutch fluid as well - but it's best to do this with a pressure bleeder because the baffle for the clutch side is so small itll run out of fluid in 2-3 pumps if you bleed the clutch by pumping the pedal. But other than that no special procedure just ensure the reservoir is topped up properly and make sure you check the clutch side carefullybto ensure its full as well.
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edycol1501.50 |
06-30-2022, 08:44 AM | #5 |
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Copper. At this stage, few years into service, copper is bigger issue. That is why two years is important interval. Moisture at this point won't affect performance in regular street driving. But copper might damage components.
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06-30-2022, 04:38 PM | #6 |
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I'm sure bleeding the clutch isn't something the dealer does with scheduled maintenance, correct?
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06-30-2022, 04:59 PM | #7 |
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Yup they do not do clutch fluid.
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Fred Conoway365.00 |
01-13-2024, 10:01 AM | #8 |
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Proper Clutch Fluid Flush Procedure?
Can anyone provide a pointer to the proper clutch fluid flush procedure?
I found this after some searching, but I'm not sure if it's complete: https://f87.bimmerpost.com/forums/at...3&d=1603317376 |
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01-13-2024, 10:23 AM | #9 | |
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Quote:
Edit: Just looked at your link again and it's the same document that comes up when I look in ISTA. |
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01-13-2024, 10:33 AM | #10 | |
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Quote:
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01-13-2024, 11:20 PM | #11 | |
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Tips for doing the clutch, don't let the reservoir fluid level drop much below the neck as the clutch chamber is very small and empties very very quickly (and so sucks air!). I fill to top of neck, bleed to bottom of neck or so, refill & repeat 3-4 times (obviously closing the bleed valve while line is pressurised). The clutch bleed valve needs a lot of loosening (compared to a brake caliper) before fluid will flow, first time you'll think it's not working. |
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01-16-2024, 03:17 PM | #12 |
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Car in for service tomorrow, getting brake fluid done as been a couple of years. But then I got thinking hmm does clutch fluid need replacing?
2016 6MT just never seen it routinely mentioned |
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01-16-2024, 05:11 PM | #13 |
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Considering the huge pita it is if you introduce air by running the bleeder dry, I would consider the waste of a bit of brake fluid and cleaning just a necessary cost of using a bleeder. I always buy extra knowing id rather be safe than sorry.
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jefe2000740.50 |
01-16-2024, 05:28 PM | #14 |
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It would be a good idea, I'm doing mine this summer. I should have done it with each brake fluid flush but I ran out of fluid last time.
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01-17-2024, 05:17 AM | #16 |
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It's the same fluid using the same reservoir. When pressure bleeding, you just add the clutch slave cylinder to the list of points you need to bleed from.
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01-17-2024, 11:42 AM | #17 | |
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Your shop will most likely pressure bleed it with positive displacement (pumping fluid), no way will they have the time to constantly refill the reservoir, they likely have a very expensive brake bleeder machine. So you don't need to worry about running dry.
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01-17-2024, 02:23 PM | #19 |
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no it's a completely separate compartment inside of the master cylinder (bmw does this so if the clutch loop failed you wouldn't loose brakes as well), so technically there would be no fluid exchange, moisture would be able to get through though because there's a gap at the top - this is why you need to flush the clutch fluid eventually (while clutch fluid doesn't get hot and boiling isn't a concern, contamination and high water content causing issues is a concern).
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01-18-2024, 04:25 AM | #20 |
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But that was the point of my post, to save others experiencing the pita that I did first time. I've done 3 clutch bleeds since (my & mates cars) re-filling the reservoir (rather than filling the Motive) without an issue. Yes it adds 10min max to the job but good racing fluid isn't cheap and I'd guess cleaning the Motive would probably take 10min anyway.
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