Braking failed. Intermittent problem BMW 316i compact 2002

2002 BMW 316
120,000 MILES
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DAMONSBEADS
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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.
Aug 3, 2012 at 6:47 PM
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KHLOW2008
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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.
Aug 3, 2012 at 7:01 PM
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DOCFIXIT
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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
Aug 3, 2012 at 7:02 PM
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KHLOW2008
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Hey Doc,

Buying more insurance would only benefit others, lol.
Aug 3, 2012 at 7:03 PM
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DAMONSBEADS
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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 !!!
Aug 4, 2012 at 12:41 PM
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KHLOW2008
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It can be fine now but it won't be for long if the master cylinder is failing.
Aug 4, 2012 at 1:34 PM