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Auxiliary heater?

Discussion in 'General Mercedes-Benz Related Discussion' started by Graham couch, Aug 11, 2017.

  1. Graham couch

    Graham couch Member

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    Joined:
    Jul 10, 2017
    Your Mercedes:
    SLK200 R171 2004
    When I put my heater on in my Slk 200 I can hear a wirring noise, it's not the fan but a noise that stays on after the fan is turned off, and it does get warm quick, is this an auxiliary heater? If so how does it work?
     
  2. Craiglxviii

    Craiglxviii Senior Member

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    Joined:
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    Location:
    Cambs UK
    Your Mercedes:
    W215 CL500 Motorway Queen; W251 R320L Familybenz, S211 E320 Avg Designo Edition now sadly missed.
    It won't be an aux heater, they're a specific unit. MB petrols DO warm up within a few minutes so I suspect it's a warm air bypass system.
     
  3. OP
    Graham couch

    Graham couch Member

    Messages:
    13
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    Joined:
    Jul 10, 2017
    Your Mercedes:
    SLK200 R171 2004

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