feyniriel said:

Hi guys, my P38 brake fluid reservoir is wet all around and the fluid level goes up and down. I recently fitted new front disks and pads, after which the brakes were spongy. After driving the car, upon opening the brake fluid reservoir, air rushed in and brake fluid dropped to normal level. Brakes feel fine now. Then a week later, brakes were spongy again, brake fluid reservoir was wet and it looked as if it was sucked in. Again upon opening air rushed in and it leveled and brakes turned hard again. The brake fluid is brown in colour, which we will fix as soon as we can.
Any ideas what could be causing this? Thanks.

Click to expand...

feyniriel said:

Hi guys, my P38 brake fluid reservoir is wet all around and the fluid level goes up and down. I recently fitted new front disks and pads, after which the brakes were spongy. After driving the car, upon opening the brake fluid reservoir, air rushed in and brake fluid dropped to normal level. Brakes feel fine now. Then a week later, brakes were spongy again, brake fluid reservoir was wet and it looked as if it was sucked in. Again upon opening air rushed in and it leveled and brakes turned hard again. The brake fluid is brown in colour, which we will fix as soon as we can.
Any ideas what could be causing this? Thanks.

Click to expand...

FEI said:

+1 on doing the brake bleed procedure as per Rave.
If you think youve got all the air out on a step give it another 5 pumps and more air will come out.

Click to expand...

kermit_rr said:

I think it's air tight otherwise moisture will get in? I can't remember, don't the caps have a diaphragm seal like bikes?

Click to expand...

Datatek said:

Given the amount of rise and fall of the fluid, an airtight cap is unlikely IMO.

Click to expand...

Datatek said:

Given the amount of rise and fall of the fluid, an airtight cap is unlikely IMO.

Click to expand...

kermit_rr said:

Perhaps it is airtight in this case then and that's the problem?

Click to expand...