BRAKING FAILED. INTERMITTENT PROBLEM BMW 316I COMPACT 2002

  • Tiny
  • damonsbeads
  • 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.

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Friday, August 3rd, 2012 AT 6:47 PM

5 Replies

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Such symptoms indicates the master cylinder is the most likely cause.

If the component is faulty, which is more important, 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
  • Expert
  • 18,991 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
  • Expert
  • 41,997 posts

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

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
  • Expert
  • 41,997 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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