aircon making a hissing noise

Discussion in 'Engine' started by dannyp1512, Jun 21, 2017.

  1. dannyp1512

    dannyp1512 Active Member

    Messages:
    88
    Joined:
    Sep 23, 2014
    Location:
    Essex
    Car:
    E350cdi coupe
    Hello everyone


    I got in the car last night and switch on the aircon which has been working fine

    I turned on the blower without the aircon and it was fine then when I switched on the aircon it started making a hissing noise and then I noticed it wasn’t getting cold


    Any ideas what it might be


    I was thinking it has a leak
     
  2. bini-q

    bini-q Member

    Messages:
    47
    Joined:
    Oct 1, 2013
    Location:
    Gloucester
    Car:
    Mercedes S55 K AMG, E320 CDI
    My car's aircon makes a hissin noise every now and then and just couple of weeks ago I had the air con recharged and the guy said everything's fine so now i just ignore it when the noise comes on

    Sent from my SM-G920F using Tapatalk
     
  3. Gav78

    Gav78 Hardcore MB Enthusiast

    Messages:
    190
    Joined:
    Feb 19, 2015
    Location:
    Wilmslow, UK
    Car:
    2007 CLS63 (Obsidian Black)
    Mine was doing something similar, has the ac regased and it's gone away.
     
  4. OP
    OP
    dannyp1512

    dannyp1512 Active Member

    Messages:
    88
    Joined:
    Sep 23, 2014
    Location:
    Essex
    Car:
    E350cdi coupe
    cheers guys

    would it just stop like that as it was working fine last week and yesterday it just stop getting hot. does the gas run out like that
     
  5. John

    John MB Club Veteran

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    Location:
    Daan Saaf
    Car:
    I wish.
    A long long time ago, I had a 1993 E36 325i which didn't have enough charge.

    It was fixed under warranty and then it hissed when it worked.

    The only car I still hear that on is our Juke, which I had recharged as it was down, but it still hisses but nothing like the same loudness as BMW.

    It is a the compressor making the noise I suspect.
     
  6. zipdip

    zipdip Hardcore MB Enthusiast

    Messages:
    2,370
    Joined:
    Mar 5, 2015
    Location:
    Essex
    Car:
    s320
    Well I just had my aircon looked at Into Cool at Burnham on Crouch Essex a husband and wife operation what smashing people,Chris is by far the best aircon guy I have every met, he checked the whole system out he explained all that he was doing and then reset my cars computer to switch the aircon on,result ice cold air in the car,he says he gets lots of people who were looking at a fortune at the main dealers,for what was a simple repair,they do nothing else but aircon repair and re gassing they give a free check on all vehicles.sorry to sound like a advert for them but you meet so few people like this trying to get a car repaired these days.
     
  7. OP
    OP
    dannyp1512

    dannyp1512 Active Member

    Messages:
    88
    Joined:
    Sep 23, 2014
    Location:
    Essex
    Car:
    E350cdi coupe
    nice 1 I will give them a shout if my regas don't go well tomorrow morning
     
  8. OP
    OP
    dannyp1512

    dannyp1512 Active Member

    Messages:
    88
    Joined:
    Sep 23, 2014
    Location:
    Essex
    Car:
    E350cdi coupe
    update

    had it re gassed this morning and all seems good no more hissing
     

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