Condenser fan speed control

2005 MERCEDES BENZ E320
256,000 MILES • 3.2L • 6 CYL • 4WD • AUTOMATIC
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GORDON T RAMSAY
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  • 3 POSTS
Fan runs at high speed continually. Always seemed to run at excessive speed when first started in hot weather, but now runs constantly fast.
Aug 9, 2016 at 11:37 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,214 POSTS
Hey Gordon,

This is a common problem with these cars, the controller goes out and causes the fan to run continuously.

Here is a wiring diagram which shows the fan and controller are an integrated all in one unit.

Please let me know what you find

Best, Ken
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Aug 12, 2016 at 4:15 AM
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GORDON T RAMSAY
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  • 3 POSTS
In that case I will listen to the noise. Rather than spend 500. Plus on a new fan assembly. Thanks for the prompt reply.
Aug 12, 2016 at 11:13 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,214 POSTS
Yep sometimes that is easier, please visit again when you have car troubles.

Best, Ken
Aug 13, 2016 at 9:51 AM
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GORDON T RAMSAY
  • MEMBER
  • 3 POSTS
Appreciate your help. Thanks
Aug 13, 2016 at 11:03 AM
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