2001 Mercedes Benz CLK320 Heat- A/C blower won't ever shut

Tiny
M245138
  • MEMBER
  • 2001 MERCEDES BENZ CLK320
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 113,000 MILES
Reguardless if the ignition is on or off the blower for heat and a/c is always blowing on hi. Could issue be related to water leak at base of windshield on passenger side. What is the most likely cause? I'm a licenced mechanic but I'm not familiar with Mercedes (mine, not a customers) I'm generaly a gm and ford guy.
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Monday, May 31st, 2010 AT 12:33 AM

2 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Could be caused by faulty fan relay module, 2 of them, both in driver side fuse & relay module box (at left rear corner of engine compartment)
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Monday, May 31st, 2010 AT 12:50 AM
Tiny
M245138
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  • 3 POSTS
Thanks, I'll let you know if or when I manage to find the problem. Haven't had time yet and it's going to rain all day today.
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Tuesday, June 1st, 2010 AT 10:44 PM

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