If this is your first visit, be sure to check out the FAQ by clicking the link above.
You may have to register before you can post: click the register link above to proceed.
To start viewing messages, select the forum that you want to visit from the selection below.
5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
hi everyone,
my 5er started leaking brake fluid a lot. i will have to fill it about 3 times a week. i keep my eye on it daily so i dont run too low cuz i know how bad that can be. i finally got it on a lift today. i see that its leaking all down the drivers frame rail. it looks like it is coming straight out of the booster. as far as i knew there isnt any fluid in the booster(vacume i think) i think that most likely it would be the master but the front of the booster is dry. any ideas? i dont want to replace the booster if i dont have to $300. thanks in advance.
by the way its a 91 525i with the m50 motor if it makes any difference
jonny b
I agree it’s the master but if you can’t find all the brake fluid it’s used it’s probably in the booster and you need to drain it when you change the master
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.