I hate the crap electric in the W220

Ever since I got the thing the driver side marker has been blinking as normal.  
The dash says that the marker is non op.  I figure it may be the original bulb 
is bad, so I change it.  New bulb is very nice and orange, bright, and blinks 
like the old one.  Normal.  Dash still says it is non-op

clay



On Aug 22, 2015, at 9:55 AM, Dan Penoff via Mercedes wrote:

> That’s nothing.  My 2003 S430 (W220) has four fuse boxes.  And some 
> electrical items have “electronic fuses” as MB calls them.  It’s a fancy name 
> for saying that they’re using an SCR to control a circuit, and it limits 
> current if it sees a ground or short circuit.
> 
> Makes troubleshooting tough sometimes, too.  I had a side marker light out.  
> I test the bulb with a meter.  Open circuit.  For grins I checked the socket 
> for power with the light switch on.  Nothing.
> 
> Further studying revealed that if there’s no load, the “electronic fuse” 
> won’t pass power to the circuit.
> 
> Put a new 5W bulb in and it worked.
> 
> Dan
> 
>> On Aug 22, 2015, at 12:47 PM, Rich Thomas via Mercedes 
>> <mercedes@okiebenz.com> wrote:
>> 
>> So my wife wants to power her phone from a cig plug charger in the 2012 ML.  
>> There is a ciggy lighter in the front console, and the manual shows 
>> either/both a 12V socket there, but hers only has the ciggy lighter.  I try 
>> to get the lighter out, push it down, nothing happens.  So I pry it out, put 
>> in the charger, no juice.
>> 
>> So I pop the hood, find the fuse box and there are only a few small fuses in 
>> there and some relays and a 50A or 2 and no chart of anything.  WTF?  So 
>> then I download the manual (she does not leave it in the car for some 
>> reason) and it shows there are 3 (!!!) fuse boxes scattered around the car, 
>> one in the side of the dash by the pass door and another under the back 
>> seat.  I try to find the one by the door, there is none there.  WTF???  So 
>> the manual says "The fuse allocation chart is located under cover" of the 
>> rear one.  So I open that one up, it has some fuses in it too, but no chart. 
>>  WTF???? The 79 TD has a nice printed chart under the fuse box cover!  I had 
>> to cut a little tab on the carpet cover too to get it lifted up, so I guess 
>> no one has ever been in that fuse box.
>> 
>> Have the Germans completely lost it?  (Or maybe the Alabama assembly 
>> workers?)  Neither of the boxes has a fuse chart, how the hell are you 
>> supposed to figure out what fuse might need to be changed?  Good news is the 
>> fuses seem to be the newer flat things, I have a ton of those around but no 
>> idea which one to pull.
>> 
>> Off to the tubes to try to find a fuse chart....
>> 
>> --R
>> 
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> 
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