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| View Poll Results: What is the M57 clapping noise with oil cap open | |||
| My engine does not have this noise |
   
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1 | 16.67% |
| My engine makes this noise, but I have not found root cause |
  
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1 | 16.67% |
| This is normal engine sound |
  
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1 | 16.67% |
| Failed Vacuum pump |
  
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1 | 16.67% |
| Failed Injector |
  
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2 | 33.33% |
| Failed Rod bearing |
  
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0 | 0% |
| Failed HPFP |
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0 | 0% |
| Failed Timing chain |
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0 | 0% |
| Unlisted component issue |
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0 | 0% |
| Multiple Choice Poll. Voters: 6. You may not vote on this poll | |||
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#1
04-28-2020, 04:07 AM
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2013 E70 M57Y loud clapping noise at idle w/ oil cap open
Original owner of 2013 E70 M57Y, 80K miles.
About a year ago I noticed unusual light tapping noise coming from the (front side of) engine (at idle). I drove approximately 6,000 miles since then. The noise likely existed for much longer. At first, I confused it with normal injectors sound, but over the time start getting concerned. I find it hard to believe that this type of noise is normal. (I also own 2016 F25 with N47D20O1 US which is silent with oil cap open) Current Error Codes: None. During recent oil change, I verified that old oil filter is free from any form of metal shavings (or, to be more precise - any kind foreign objects) At 36K injector was replaced due to 4B26 DDE: Zero-quantity adaptation, injector, cylinder 6. The very same code came back at 48K, then at 75K. Both times codes were cleared by BMWSF stealership with report of "nothing to worry about" The million dollar question - what is it? 
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