Braking failed. Intermittent problem BMW 316i compact 2002

Tiny
DAMONSBEADS
  • MEMBER
  • 2002 BMW 316
  • 120,000 MILES
I was reversing out of a carspace, went to apply brakes and foot went straight to floor. Brakes not working at all, pedal floppy. Pumped pedal and came back after time. Have not had a problem since! Had everything checked at garage, even checking pedal itself. A new master cylinder will cost in excess of £200. Is it necessary to replace this? Quite a worry that it may do it again.
Friday, August 3rd, 2012 AT 6:47 PM

5 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Such symptoms indicates the master cylinder is the most likely cause.

If the component is faulty, which is more important, Â 200 or your life? Vehicle is 10 years old and if the master cylinder is still good, it should also be due for repair/replacement if there are any brake related problems.
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Friday, August 3rd, 2012 AT 7:01 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hold pressure on brake pedal if it slowly goes to floor then yes replace master. If it was me would replace or buy more life insurance
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Friday, August 3rd, 2012 AT 7:02 PM
Tiny
KHLOW2008
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Hey Doc,

Buying more insurance would only benefit others, lol.
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Friday, August 3rd, 2012 AT 7:03 PM
Tiny
DAMONSBEADS
  • MEMBER
  • 2 POSTS
Thanks for your replies. I do have life insurance (LOL) but I guess you have told me what I already was thinking - Get new master cylinder. Car passed its MOT yesterday and was told the brakes were fine !
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Saturday, August 4th, 2012 AT 12:41 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It can be fine now but it won't be for long if the master cylinder is failing.
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Saturday, August 4th, 2012 AT 1:34 PM

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