Go Back   MBWorld.org Forums > Mercedes-Benz Sedans > C-Class (W203)
Sign in using an external account
Register Forgot Password?

C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Sponsored by : My Mercedes Parts
Click Here

Welcome to MBWorld.org!
Welcome to MBWorld,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
Old 08-25-2011, 02:26 PM   #1
Newbie
 
Join Date: Aug 2011
Posts: 8
Drives: 2003 C240
Cigarette lighter power always on? 2003 C240

Hi all, long time forum viewer, first time poster. I am wondering if anyone knows how to make the cigarette lighter power stay on even when the car is turned off in a 2003 C240. I have seen some forum posts regarding this in the E-class, but I am not sure if the idea is the same in my car. Can anyone point me to some documentation or have knowledge of this?

Thanks in advance
-oriz
To remove this ad, register today or login if you already are registered!

orizzle is offline   Reply With Quote
Old 08-25-2011, 04:49 PM   #2
Super Moderator
 
Glyn M Ruck's Avatar
 
Join Date: Jun 2008
Location: Llandudno, Cape Town, South Africa
Posts: 18,043
Drives: late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Cigarette lighter should be on all the time.
__________________

Llandudno, Cape Town, South Africa
Glyn M Ruck is offline   Reply With Quote
Old 08-25-2011, 09:13 PM   #3
Newbie
 
Join Date: Aug 2011
Posts: 8
Drives: 2003 C240
It's not. When I take out the keys, the power shuts off.
orizzle is offline   Reply With Quote
Old 08-25-2011, 10:04 PM   #4
Super Moderator
 
Glyn M Ruck's Avatar
 
Join Date: Jun 2008
Location: Llandudno, Cape Town, South Africa
Posts: 18,043
Drives: late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
OK - Yours is different to mine. Mine is like an Audi. SA assembly

Then take constant power from the fuse box in the side of the dash.

Click the image to open in full size.
__________________

Llandudno, Cape Town, South Africa

Last edited by Glyn M Ruck; 08-25-2011 at 10:29 PM.
Glyn M Ruck is offline   Reply With Quote
Old 08-25-2011, 11:42 PM   #5
Newbie
 
Join Date: Aug 2011
Posts: 8
Drives: 2003 C240
So it's not possible to make the cigarette lighter stay on?
orizzle is offline   Reply With Quote
Old 08-26-2011, 03:51 AM   #6
MBWorld Fanatic!
 
phister's Avatar
 
Join Date: Feb 2009
Location: fort worth, tx
Posts: 4,822
Drives: 06 C230 SS 6spd
Why are trying to do this? If you just want a constant 12v even if the car is off your radio has a constant 12v you can tap into.
phister is offline   Reply With Quote
Old 08-26-2011, 06:25 AM   #7
Newbie
 
Join Date: Aug 2011
Posts: 8
Drives: 2003 C240
I'm trying to charge a cell phone with the car off and not have to splice any wires if I can get away with it.
orizzle is offline   Reply With Quote
Old 08-26-2011, 03:23 PM   #8
Super Moderator
 
Glyn M Ruck's Avatar
 
Join Date: Jun 2008
Location: Llandudno, Cape Town, South Africa
Posts: 18,043
Drives: late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You have a choice - Take it from the fuse box. Rewire your cig lighter to a 20amp permanently on tap in the fuse box.

Stay away from taps that go to sleep with the CANBUS like the radio.
__________________

Llandudno, Cape Town, South Africa
Glyn M Ruck is offline   Reply With Quote
Old 08-26-2011, 09:19 PM   #9
Newbie
 
Join Date: Aug 2011
Posts: 8
Drives: 2003 C240
What's involved in rewiring it to the 20A fuse? Just a matter of moving a couple wires or is there soldering and stuff involved? I'm totally new to this and haven't taken a look at the fuse box yet.
orizzle is offline   Reply With Quote
Old 08-27-2011, 09:50 AM   #10
Super Moderator
 
Glyn M Ruck's Avatar
 
Join Date: Jun 2008
Location: Llandudno, Cape Town, South Africa
Posts: 18,043
Drives: late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
As cars vary you need to take a meter & find a tap in the fusebox that has a wire going to it as fat as the one going to the cig lighter & make sure it does not go to sleep with the CANBUS. Then run a new wire from there to the cig lighter. This requires some careful stripping of the dash & console to feed a new wire.

If your car was prewired for a cell phone then the wiring will be there already at the side of the console. Only Benz can tell you from your VIN whether the car is prewired.
__________________

Llandudno, Cape Town, South Africa
Glyn M Ruck is offline   Reply With Quote
Old 08-27-2011, 09:50 AM
 
 
 
Reply

Tags
12v, 2009, c240, c300, cigar, cigarette, constant, fuse, iscigarette, jaguar, lighter, mbworld, mercedes, power, tap



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off




All times are GMT -4. The time now is 04:01 PM.


Copyright 2001-2012 InternetBrands, Inc. / MBWorld.org. All Rights Reserved.
Everyone's Personal Details

SEO by vBSEO 3.5.2