Don't put off brake fluid changes

[TomZ4]

Thanks for the tip. what's the best way to check the quality of my break fluid? or just give it to the garage on service?

 

[Mr Tidy]

I think BMW recommend changing it every other year, so hopefully that will fit in with oil services.

And if you have a manual gearbox it's a good time to get the CDV removed!

 

[flybobbie]

Well drove car home tonight.
Not 100% happy with it.
Brakes ok, but pedal still seems to move a inch or so before brakes come on.
You sort of forget what normal is.
Might give it few weeks and bleed again.

 

[wanderer]

Thanks for the tip. what's the best way to check the quality of my break fluid? or just give it to the garage on service?

You can get a brake fluid tester off Amazon or Screwfix.
I got mine from Amazon.

https://www.amazon.co.uk/dp/B07H5HXNLS?ref_=cm_sw_r_cp_ud_dp_65FY14SSN06Z4R36XNTG

 

[flybobbie]

Can't understand if brake fluid hydroscopic, why is the reservoir not sealed air tight with say rubber bellow, like on my motorbike.

 

[Smartbear]

Can't understand if brake fluid hydroscopic, why is the reservoir not sealed air tight with say rubber bellow, like on my motorbike.

As the pads wear & the fluid level drops, if the reservoir was airtight the movement of the fluid would create a vacuum?
Can’t think of any other reason.
Rob

 

[SonnyA85]

I think BMW recommend changing it every other year, so hopefully that will fit in with oil services.

And if you have a manual gearbox it's a good time to get the CDV removed!

My mechanic said the maximum you should let it go is 2 years also.

For the cost of brake fluid I just get it done yearly. My mechanic charges £30-£40 per hour depending on how long you have been using him for.

 

[flybobbie]

Well ran the abs bleed several times more and much better now.
Basic change don't probably need to bleed but if removing master cylinder and reservoir then seems to need quite a few cycles of bleed routine.