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A/C dash rattle

Discussion in 'Model X' started by cmc5dc, Jul 13, 2016.

  1. cmc5dc

    cmc5dc Member

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    Its been hot lately, 100+, there has been a god awful rattle when the a/c compressor kicks in. The wife asks what is that? I really don't know I tell her. This can't be normal. I'll try to record it. Anyone with similar noise?
     
  2. pdxgibby

    pdxgibby Member

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    I have the same issue on my 2015 70D. Only when the fan is on 8 or 9+ setting. I haven't mentioned it to service yet, but I have an appointment on Monday. I might mention it to them.
     
  3. timf

    timf Member

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    I've noticed a rattle coming from the vents before. Adjusting the position of the vents seemed to help control it.
     
  4. cmc5dc

    cmc5dc Member

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    The noise is prominent at the 1.26 mark.
     

    Attached Files:

  5. hotrod

    hotrod Member

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    Had the same issue and service replaced the condenser. See below.

    Inspect air conditioning operation, found over pressure alerts due to incorrect routing of AC
    lines at condenser, This condition can cause a elevated noise level from AC compressor,
    AC lines will be correctly routed and condenser replaced to correct over pressure condition.
     
  6. K-MTG

    K-MTG Sunshade Captain of TMC

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    My passenger vent next to the touchscreen, makes a very faint sound when fan speed is on 11. I can't play the sound file you posted
     
  7. cmc5dc

    cmc5dc Member

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    I'll try to upload the noise again, this time in mp3 format. The noise is near the end of.
     

    Attached Files:

  8. K-MTG

    K-MTG Sunshade Captain of TMC

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    Mine does that when the AC initially turns on and but later goes away
     
  9. jdw

    jdw Member

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    The sound is normal on a really hot day especially when you first turn AC on.
     
  10. cmc5dc

    cmc5dc Member

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    @ jdw, if you heard the sound near the end of the recording than I am completely shocked. How is it tha a car of this caliber can sound so awful. I'm embarrased to drive friends around.
     
  11. jomo25

    jomo25 P4398

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    Have the same same issue. I took it in to get checked/fixed, but they. Couldn't reproduce it \. This was back in early May and it wasn't quite as hot yet. But as it got hotter, it happened more frequently. So one day when it was happening I took it in and had the service tech sit in the car with me. I've got an appointment for next Friday to get this fixed For real this time.

    First bad day in the X
     
  12. K-MTG

    K-MTG Sunshade Captain of TMC

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    Today, I discovered another rattle on the center between the two FWD. What gives???? My X is getting worse everyday.

    Took my X for 3 SC appointments already and they don't resolve the issues, what should I do?
     
  13. jdw

    jdw Member

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    It is the same sound, but it could vary in intensity or volume from what I hear - can't tell that from the sound clip. When it is over 30 C it tends to be quite noisy at start and occasionally after that It is more noticeable without any engine noise to mask the compressor. I can moderate/modulate it by setting the auto temp a little higher (maybe 5 degrees cooler than outside) and gradually reducing it rather than setting it 10-15 degrees cooler, preventing the compressor from coming on full tilt.
     
  14. mjcostajr

    mjcostajr Member

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    It's been over 100 degrees in NC and my condenser has been really loud - low level vibration/hum. My wife also ask's "what's that?" Kind of annoying although it's sweltering outside. Will ask when I bring in for 24k mile check.
     
  15. cmc5dc

    cmc5dc Member

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    They always say don't buy the 1st year production car but I couldn't wait
     
  16. K-MTG

    K-MTG Sunshade Captain of TMC

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    I bought the first generation before and those came out fine
     
  17. vv132

    vv132 Member

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    found same issue in our mx90d. Service is fixing it as we speak
     
  18. cmc5dc

    cmc5dc Member

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    Could you post the fix/outcome when you get the chance?
     
    • Like x 1
  19. Dazureus

    Dazureus Member

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    I just got my X back from the SC for something that might be the same as your issue. I noticed that when the A/C load was high (just getting into the car) I would hear a light rattling that I associated with the A/C operation. It sounded like a rattling heat shield, and it would happen at any speed and while not moving. Here's the SC invoice repair note for mine. I've only had the vehicle back for a day, but haven't noticed the sound anymore.

    checked operation of A/C for noise. during various A/C loads, could not duplicate any abnormal noises at this time. However, due to production date of vehicle, checked routing of A/C lines at condenser. Found lines routed improperly.
    ...
    Recovered refrigerant. Swapped lines at condenser and recharged A/C system. Performed function check of A/C system and found it operating to manufacturer's specs.

    My A/C was cooling properly before (and after) the fix, so it appears that on some vehicles, the routing of the A/C lines were incorrect and might be the cause of the rattling. Hope this helps.
     
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    • Informative x 1
  20. jomo25

    jomo25 P4398

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    Thanks! What was your production and/or delivery date?
     

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