SLK-Class (R170) 1998-2003: SLK 200, SLK 230K, SLK 320

SLK/R170: R170 air recirculation malfunction

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Old Jun 14, 2014 | 03:36 AM
  #1  
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slk r 170
R170 air recirculation malfunction

Hello my air recirculation comes on without warning,blowing hot air.If i stop after about ten minutes of driving and turn the engine off it usually solves the problem until the next time. Also the engine fan has its own agenda as well. Any ideas would be gratefully appreciated.
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Old Jun 15, 2014 | 02:21 PM
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From: South of Houston, Texas
Chrysler Crossfire Roadster
Mine doesn't work...I would be interested in any ideas.
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Old Jul 21, 2014 | 03:18 PM
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SLK 230 R170
mine didnt work either, turned out to be the resistor/control unit, screws on next to the fan itself - doddle to replace, oh & fan box was full of muck/dirt/leaves & pollen filter is right next to it as well
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Old Jul 21, 2014 | 06:42 PM
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From: South of Houston, Texas
Chrysler Crossfire Roadster
Resistor/control unit? The one next to the fan? My fan has all the speeds...any idea what that part number is? Thanks for the info!
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Old Jul 23, 2014 | 04:50 PM
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SLK 230 R170
ah we may be at cross purposes?? it was my air con/heater fan that wasnt working, if yours has all its speeds then sounds like its ok... I have the a/c heater fan resistor unit part number if thats what you want?
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Old Jul 23, 2014 | 05:25 PM
  #6  
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From: South of Houston, Texas
Chrysler Crossfire Roadster
Hi, sir,

You might be right...mine just doesn't change to recirculate at all...even if the light is on. There is no change in sound.
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Old Jul 23, 2014 | 05:35 PM
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SLK 230 R170
hello Texas from Hertfordshire UK (about 20 miles north of London) sounds like a different problem completely, hope you manage to find the answer, is this an issue on your Crossfire? are the SLK & Crossfire a/c sytems/controls the same?
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Old Jul 23, 2014 | 05:43 PM
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From: South of Houston, Texas
Chrysler Crossfire Roadster
Hello, Hertfordshire! I live about 25 miles south of Houston.

The Crossfire and the SLK are alike in all respects but body cladding...it is an issue on the Crossfire.
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