UK Car Repair Questions? Ask a Mechanic for Answers ASAP
Yes this is your brake master cylinder that has malfunctioned , the vacuum pump has sucked in the leaking fluid from the leaking master cylinder .
When you replace the master cylinder flush out the pump with water .leave this too long you will have to replace the pump .
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Kind regards Greg.
Couple of weeks will damage the rubber seal in the system .
I would replace the master cylinder as the cylinder walls damage on these , but you may be lucky when you have the master cylinder out remove the piston set and check the cylinder walls for damage .
There are good repair kits that you can use ,
Let me know if you need further assistance with this issue .
Kind regards Greg
If the master cylinder is leaking fluid will get to the vacuum pump in most cases .like i said water will remove brake fluid don't use any chemicals .
There is a 10mm stopper bolt (# ***** 5 diagram) on the underside of the master cylinder this has to be removed to get the second piston out .
Okay the brake system is basically the same as a petrol vehicle only the vacuum the booster needs is from the
vacuum pump and not the intake manifold .
So if the master cylinder leaks the fluid ends up in the brake power booster and also gets sucked up into the pump .
Did you not say you was also losing brake Fluid ?
Engine oil is possible if the pump shaft seal fails on the pump itself .
Hi did you the last message .