Flusing Brake Fluid 2yrs after MFG - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
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#1 (permalink) Old 04-02-2004, 09:37 AM
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I received my (99-01) E46 bentley service manual yesterday. As I was skimming through it states that Brake fluid should be flushed / replaced 2yrs after the car manufacturing date because brake fluid absorbs moisture from the air. It also said something about the car should be hooked up to their diagnostic system as the brakes are flushed. Has anyone changed their brake fluid their self? Should this definitely be done after 2 yrs?

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#2 (permalink) Old 04-02-2004, 11:44 AM
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i had mine brake fluid flushed i think its a good idea because the fluid does absorb moisture and the boiling point is reduced possibly causing malfunctions. i had my dealer do the service

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#3 (permalink) Old 04-04-2004, 12:55 AM
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Yes, it needs to be changed for the mentioned reasons. You don't have to hook it up to anything unless the hydraulic unit is replaced. We operate the valves and pumps inside the hydraulic unit to bleed it out if it's replaced.
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