Whirring noise when car is off and battery died if car is not driven for 1 day
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Joined: Nov 2005
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Whirring noise when car is off and battery died if car is not driven for 1 day
Hi all,
Starting last week, I have this problem on my 02' C320. The car was driven on weekdays to work without any problem, but if it is not driven on Saturday, then battery died on Sunday.
About 6 months ago, we had the battery draining problem, but I have spent a lot of money to replace the modules here (including the faulty passenger modules) and there to make sure the problems never come back, but here we go again.
Tonight (on Saturday night), we just came home and this car was not driven again on entire Saturday, and we heard a very weird whirring noise coming from right underneath the battery side. I am wondering what it is, and when we try to open the door, the battery is already dead.
Does anyone of you know what happens? Any help will be appreciated.
Starting last week, I have this problem on my 02' C320. The car was driven on weekdays to work without any problem, but if it is not driven on Saturday, then battery died on Sunday.
About 6 months ago, we had the battery draining problem, but I have spent a lot of money to replace the modules here (including the faulty passenger modules) and there to make sure the problems never come back, but here we go again.
Tonight (on Saturday night), we just came home and this car was not driven again on entire Saturday, and we heard a very weird whirring noise coming from right underneath the battery side. I am wondering what it is, and when we try to open the door, the battery is already dead.
Does anyone of you know what happens? Any help will be appreciated.
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From: USA
Marsaydees
May the force be with you.
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It didn't scream when we turned off the car on Friday evening, but we found it screaming on Saturday night and the battery was already dead.
Yes. There's also a good chance that the air pump is fried too, since you let it scream away for 24+ hours. The secondary air pump is only supposed to be on for 30 seconds during cold starts, when the relay fails, the air pump stays on permanently up until it turns into a nukuler bomb and explodes creating a break in the space/time continuum (but this is rare, usually they just stop working after over-running)
May the force be with you.
May the force be with you.
Newbie
Joined: Sep 2009
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W203
Same situation here!
That whirring noise! i had that happen once about 7 weeks ago. Ive been jumping my car on and off. Been through 7 batteries 1 alternator. My car dies if i dont start it within 20hrs or so. Did you find the problem yet? I cant afford to take my 2002 c320 to the dealership right now tough times, but i would like to drive my vehicle without having to pop the hood, remove the filter, pull a big truck into the garage, wait for it to charge, start, pull truck out put cable back into trunk, wash my hands then take off. 
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
See TemjinX2's seat control module modification - cheap & easy.
Otherwise follow Dingleberry's (Mr imagination in overdrive
) secondary air pump advice.
Otherwise follow Dingleberry's (Mr imagination in overdrive
) secondary air pump advice.
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MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
if you replaced the seat modules already. Try pulling the fuse for the sun roof. Other sources of battery drainage is the over head module that powers the sun roof and the fan that cools the command nav system.
There's a defect in some command systems where the fan keeps running after the car is off. If possible see if you can get the battery charged at autozone or something. A few members have blown there rear SAMs by jumping the car too much.
if you don't want to trouble shoot, you can just detach the negative terminal on the battery when your not going to drive it the next day.
There's a defect in some command systems where the fan keeps running after the car is off. If possible see if you can get the battery charged at autozone or something. A few members have blown there rear SAMs by jumping the car too much.
if you don't want to trouble shoot, you can just detach the negative terminal on the battery when your not going to drive it the next day.
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Joined: Mar 2007
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From: VA
THE C350
+1 on the nav my fan never goes off on it. but i have left the car over two weeks parked and came back and it started right up. so i just ignore it that is why we have a Mercedes and 1-800-FOR-MERCEDES.
Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
if you replaced the seat modules already. Try pulling the fuse for the sun roof. Other sources of battery drainage is the over head module that powers the sun roof and the fan that cools the command nav system.
There's a defect in some command systems where the fan keeps running after the car is off. If possible see if you can get the battery charged at autozone or something. A few members have blown there rear SAMs by jumping the car too much.
if you don't want to trouble shoot, you can just detach the negative terminal on the battery when your not going to drive it the next day.
There's a defect in some command systems where the fan keeps running after the car is off. If possible see if you can get the battery charged at autozone or something. A few members have blown there rear SAMs by jumping the car too much.
if you don't want to trouble shoot, you can just detach the negative terminal on the battery when your not going to drive it the next day.
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
All the new seat control modules use 211 part number. The accelerator pedal i just replaced uses a 211 part number as well.
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Joined: Mar 2007
Posts: 5,295
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From: VA
THE C350
one was the original, the other was new with the 203 part number and it still went bad after about a yr. I'm convinced all the 203 parts are crap. Mercedes seems to agree, since there replacing all the 203 parts with 211 ones.
All the new seat control modules use 211 part number. The accelerator pedal i just replaced uses a 211 part number as well.
All the new seat control modules use 211 part number. The accelerator pedal i just replaced uses a 211 part number as well.
Newbie
Joined: Jan 2010
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C240
Having to Jump Car-C240
For the past month - Ive been jumping my car on and off. Been through 2 batteries. My car dies if I dont start it within 12hrs. I cant afford to take my 2001 c240 to the dealership right now because their prices for a diagnostic is ridiculous, but i would like to drive my vehicle without having to pop the hood, remove the filter, ask a neighbor for a jump, wait for it to charge, and put the cables back into my trunk and be late for work.
A friend that has the same car said it could be something pulling from the the CD Charger and it keeps it "awake" (not in sleep mode).
Can jumping the car every other day damage anything else in the car?
A friend that has the same car said it could be something pulling from the the CD Charger and it keeps it "awake" (not in sleep mode).
Can jumping the car every other day damage anything else in the car?
Super Moderator
Joined: Mar 2007
Posts: 5,295
Likes: 22
From: VA
THE C350
For the past month - Ive been jumping my car on and off. Been through 2 batteries. My car dies if I dont start it within 12hrs. I cant afford to take my 2001 c240 to the dealership right now because their prices for a diagnostic is ridiculous, but i would like to drive my vehicle without having to pop the hood, remove the filter, ask a neighbor for a jump, wait for it to charge, and put the cables back into my trunk and be late for work.
A friend that has the same car said it could be something pulling from the the CD Charger and it keeps it "awake" (not in sleep mode).
Can jumping the car every other day damage anything else in the car?
A friend that has the same car said it could be something pulling from the the CD Charger and it keeps it "awake" (not in sleep mode).
Can jumping the car every other day damage anything else in the car?
do you have power seats? have you had you alternator chekced if you say you have gone through two new batteries. btw does the gas guage still work?
Super Moderator
Joined: Mar 2007
Posts: 5,295
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From: VA
THE C350
ok have you tired unplugging the seat controllers? apparently there is something inside them that dies on all early w203's unless they are replaced with a newer version. that is good your gas gauge works that means you have not blown your rear sam yet. stop jumpstarting it becase the rear sam's are known to blow very easy in our cars.
