HEAT- A/C BLOWER WON'T EVER SHUT

2001 Mercedes Benz CLK320

Tiny

M245138

May, 31, 2010 AT 12:33 AM

Electrical problem
2001 Mercedes Benz CLK320 6 cyl Two Wheel Drive Automatic 113000 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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2 Answers

Tiny

bluelightnin6

May, 31, 2010 AT 12:50 AM

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)

Tiny

M245138

June, 1, 2010 AT 10:44 PM

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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