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2001 CLK320, Tanzanite Blue, @40K miles, totally stock
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Discussion Starter #1
I have been parked for 2 hours, and the fan for the defrost is still running. The car has been off, the climate control is turned off, yet the interior is still acting like the car is on, getting air circulated. Messing with the residual button didn't help, nor did restarting and turning off the car. If I pop the hood I hear a fan near the window on the passenger side, in the air conditioner area.

Am I going to have a dead battery soon? As anyone experienced this? Help!
 

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I have been parked for 2 hours, and the fan for the defrost is still running. The car has been off, the climate control is turned off, yet the interior is still acting like the car is on, getting air circulated. Messing with the residual button didn't help, nor did restarting and turning off the car. If I pop the hood I hear a fan near the window on the passenger side, in the air conditioner area.

Am I going to have a dead battery soon? As anyone experienced this? Help!
I wish I could help you friend, but all I can tell you is disconnect your battery and reconnect and see what happens.
 
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I have been parked for 2 hours, and the fan for the defrost is still running. The car has been off, the climate control is turned off, yet the interior is still acting like the car is on, getting air circulated. Messing with the residual button didn't help, nor did restarting and turning off the car. If I pop the hood I hear a fan near the window on the passenger side, in the air conditioner area.

Am I going to have a dead battery soon? As anyone experienced this? Help!

I don't know exactly what to call these feature but I believe our car has a feature that actually allow the fan to be on to circulate the air inside the interior to keep it cool when the car is park. It does not turn on unless you hit the button on the dash after the engine turn off. I'm not sure about the Clk 430 but for sure on my Clk 500 cabriolet and my CL 55 has these feature. I believe the button labeled "REST".

Now, before you disconnect the battery try turning that feature off by lower the temp on the read out down to lower then out side temp.
 

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2001 CLK320, Tanzanite Blue, @40K miles, totally stock
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Discussion Starter #4
Well, no luck yet. I have the temp set all the way down to LO, fan all the way off, and the REST button is not activated. I am waiting an hour and then disconnecting the battery if the thing still doesn't go off.
 

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I would not wait. I'd disconnect now if I where you. It is clear something is wrong. Sounds like the fan relay (if the car has one) is stuck closed for some reason.
 

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2001 CLK320, Tanzanite Blue, @40K miles, totally stock
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24 Posts
Discussion Starter #6
Well, it never turned off, so i tried disconnecting the battery. Now things are worse, I have an indication that the brake assist has a problem, the driverside window will not roll up all the way, it thinks the end of travel is about 4 inches shy of the top. If i sneak it up closed by inching it and turn off the car, it just drops 4 inches and stays down. Meanwhile, the interior fan is still blowing no matter what happens. I disconnected the battery just so i can get home later. I love this car's driving dynamics and style, but its electronics seem pretty squirrely. I guess I will have to see if my warranty i bought is worth anything soon.
 
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1) I have an indication that the brake assist has a problem,
2) the driverside window will not roll up all the way, it thinks the end of travel is about 4 inches shy of the top. If i sneak it up closed by inching it and turn off the car, it just drops 4 inches and stays down.

3) Meanwhile, the interior fan is still blowing no matter what happens

Don't worry...........that's normal when you disconnect the battery.

1) Can reprogram by start the engine then turn the steering wheell all the way to the left ans all the way to the right.

2) Read your user's manual, it show you how to reprogram the one-touch feature power window up and down.

3) Finf the "fuse" and remove completely to trun the fan off for now or remove and replug to see if it reset itself.
 

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2001 CLK320, Tanzanite Blue, @40K miles, totally stock
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Discussion Starter #8
Well, I can report some progress. I pulled fuse #25 (30 amp) for the AC blower, and it stopped. I tried chilling for a while and having a beer to see if something would reset. I didn't have much hope since disconnecting the battery didn't seem to reset it. Sure enough, even with the car off, when i put the fuse back in, the AC fan starts blowing again. So, it's out for the night. At least I will have a battery with a charge tomorrow.

Also, thanks Linh, both my brake warning light and windows are reset/recalibrated.

One cool thing (totally unrelated) I noticed on the 40 mile ride home tonight, I was able to average 30.3 mpg! That's mixed driving city and highway, average speed of 39. I made most of the lights, accelerated smoothly and had no traffic. Besides the death of my CPS (which I easily fixed due to this site), I have nothing but praise for this 3.2. Super combination of performance and economy imo. I bought a tankfull of premium before I left, the $4.17/gal by my sister is great deal compared to the $4.30+ in my hood.

Anyways, thanks for the input, and I will keep you all posted on my progress on this issue.
 
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Well, I can report some progress. I pulled fuse #25 (30 amp) for the AC blower, and it stopped. I tried chilling for a while and having a beer to see if something would reset. I didn't have much hope since disconnecting the battery didn't seem to reset it. Sure enough, even with the car off, when i put the fuse back in, the AC fan starts blowing again. So, it's out for the night. At least I will have a battery with a charge tomorrow..

Well, at least we solved half the problem by pulled the fuse, it save your battery.:D My last guess, your relay is shorted out.
 

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1999 clk 320
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same problem

Did you ever get it fixed or know what the problem was ?I took out the fuse that you said on the post and it did turn off thanks for posting it.Well Keep me updated I'm starting to have issues with this clk too.
Thanks
Alex
 

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2001 CLK320, Tanzanite Blue, @40K miles, totally stock
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Discussion Starter #11
Hey everybody, here's an update:

Since my ride was at the dealer already for the new side mirror, I had them check this out too. Hopefully it will be done tomorrow. They said I need a Blower Fan and Regulator. I got an estimate for $944 for parts and labor and I gave the dealer the go-ahead. I will know more tomorrow hopefully, I will keep you all posted!
 

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Guauu $944? But the fan was working...why did they have to replace it?
I'm having the same issue as you did and I'm scared!!! jejeje.:(

Did the $944 fixed the problem?


Thank you,
 
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