Question about 2008 Mercedes-Benz Mercedes Benz E Class

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Fuse diagram Mercedes 2008 E350

The trunk won't open, the rear shade won't open, the 3rd brake lamp is out and the license plate lamps are out. I want to know where fuses are and how to change lamps

Posted by Denise Graham on


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Just some food for though the Mercedes is notorious for having lighting issues. My mom has an slk and her tail lights were going out along with the brake lamp. She was about to go purchase the housing for both rear lights and brake lamp. Checked all fuses they were good she bought new bulbs and nothing. For some reason Mercedes ground on tail lights and brake lamp are on a flat aluminum like piece goes around to each bulb. That flat ground is so dull after so much heat it may break along its path and not making circuit complete. Heres what I did here was broken on one side I took a very small piece of foil rolled it up and flattened it making sure it had cont on both sides **heres the magic ..I went to autozone and the sell these small packets of electrical grease or bulb grease costs you less than $6.00. Remove you brake lamp (I'd do all your rear lights) tear open package use a latex or rubber glove squeeze grease from packet onto your finger or ground track .spread this grease on entire ground track (the dull flat dry looking piece of metal.hold it up to.make sure grease is spread along entire ground track) you may want some one to step on the brake after applying bulb grease as they called it is at autozone. Put all your lights back on and Bingo. I'm almost 100 % that this will help with lighting issues that are causing bulbs to go out from getting too hot in some threads I was reading even the light cover was warping. Remember Mercedes lights in rear are self grounding that whole ground track is only make a ground when its put back and all the 8mm nuts are firmly on if your missing a nut then that cold be your problem also. We can get by with out a nut thinking well its holding up NO every nut presses the lights firmly to body which acts as a ground for the lights. Good luck

Posted on Jul 26, 2019


Nikolin Zguri

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You must check the fuses under the steering wheel, or in the left side of the steering wheel.

Posted on Jul 24, 2019


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Nicolo Carlo Parazo

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SOURCE: license plate lamp alarm and

The pieces that you have mentioned that are not working are located at the rear and the wiring are at close proximity to each other. I suspect a loose ground wire somewhere. The ground wire should be secured to the body of the car. I would suggest to inspect the wiring in the trunk. You may have to removed the trimmings. If I recall correctly the wiring should be at the driver side of the trunk.

Posted on Jul 27, 2011

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No Taillights, No Dash light Problem? 2006 ford focus

When the headlamp switch is placed in the PARKING LAMPS ON position, voltage is supplied to the front parking lamps, the side marker lamps, the rear lamps and license plate lamps.Dash light's also come on with headlamp switch on .
Visual Inspection Chart Mechanical Electrical
  • Headlamp switch
  • Central junction box (CJB) fuse 30 (10A) (headlamp switch)
  • Bulb(s)
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Pinpoint Test N: One or More Parking, Rear or License Plate Lamp Is Inoperative
Normal Operation The central junction box (CJB) provides voltage to the headlamp switch through circuit 29-LE29 (OG/BK). When the headlamp switch is placed in the PARKING LAMPS ON position, voltage is routed to the front parking and side marker lamps through circuits 29S-LF3 (OG/YE), 29S-LF7 (OG/BU), 29S-LF8 (OG), 29S-LF16 (OG/GN) and 29S-LF17 (OG/WH). Voltage is also routed to the rear parking and license plate lamps through circuits 29S-LF11 (OG/WH), 29S-LF20 (OG), 29S-LF21 (OG/WH) and 29S-LF22 (OG/BK). Ground for the front side markers is provided by utilizing the turn lamp circuitry and filaments. Ground is provided through circuits 31-LG11 (BK) and 31-LG18 (BK) to the LH and RH front parking lamps, respectively. Ground is provided through circuits 31-LF23 (BK) and 31-LF24 (BK) to the LH and RH rear parking lamps, respectively. Ground is provided through circuits 31-LF21 (BK) and 31-LF22 (BK) to the LH and RH license plate lamps, respectively.
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  • Circuit 29-LE29 (OG/BK) open
  • Circuit 29S-LF3 (OG/YE) open
  • Circuit 29S-LF7 (OG/BU) open
  • Circuit 29S-LF8 (OG) open
  • Circuit 29S-LF11 (OG/WH) open
  • Circuit 29S-LF16 (OG/GN) open
  • Circuit 29S-LF17 (OG/WH) open
  • Circuit 29S-LF20 (OG) open
  • Circuit 29S-LF21 (OG/WH) open
  • Circuit 29S-LF22 (OG/BK) open
  • Circuit 31-LG11 (BK) open
  • Circuit 31-LG18 (BK) open
  • Circuit 31-LF21 (BK) open
  • Circuit 31-LF22 (BK) open
  • Circuit 31-LF23 (BK) open
  • Circuit 31-LF24 (BK) open
  • Circuit 49S-LG13 (BU/RD) open
  • Circuit 49S-LG20 (BU/WH) open
  • Headlamp switch

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The fuse panel diagram is in your owners manual, if you don't have one, go to and download it for free.

Fuse Panel Description
Cavity Fuse Description
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Please review this article: Where's The Fuse?

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I'll tell you where the fuse is but I want to mention that if it is just the license plate lamps that are out you may have other problems. The fuse you are looking for also controls the power to the left & right back up lamps, the right park & stop lamps and I think the left turn signal but don't quote me on that. So as you can see this fuse covers more then just the lamps for the license plate. Anyhow the fuse you are looking for is in the fuse box located to the left of the steering wheel by the brake pedel. It is in the number 7 position (see picture below) and is a 15 amp blue fuse. I hope this helped and good luck.


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  5. Remove the license lamp bulb from the housing and socket.
To Install:
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