W124 - number plate lights earth

tpv01 · 14-07-2008, 11:31 AM

my number plate lights dont work and before i get pulled and get a producer i better fix them.

the bulb is fine as is the power, switch and fuse. However it doesnt have the permenant earth it should do. i have followed the earth wire out of boot and i disapears behind the rear seats. Where should it go? could i just earth is at a suitable location rather than chasing it round the car?

NW_Merc · 14-07-2008, 11:49 AM

Does the light in the boot come on? If not then it might be that the wires are freyed from opening and closing the boot and hence need soldering together. My car failed its MOT because of this and I was guided by a fellow member to the problem which was a straightforward fix.

tpv01 · 14-07-2008, 12:45 PM

just been to check and you are right the boot light doesnt work. please help.

crammy69 · 14-07-2008, 04:15 PM

Sounds like my issue, what you need to do is trip off the cable protector and find where the earth is broken. With mine I found it was (weirdly) at the point after it leaves the boot hinge under the rear shelf. Find the break, insert a bullet /crimped type connecter and shuld be good to go.

14-07-2008, 11:31 AM	#1
tpv01 Hardcore MB Enthusiast Join Date: Jul 2008 Posts: 170	W124 - number plate lights earth my number plate lights dont work and before i get pulled and get a producer i better fix them. the bulb is fine as is the power, switch and fuse. However it doesnt have the permenant earth it should do. i have followed the earth wire out of boot and i disapears behind the rear seats. Where should it go? could i just earth is at a suitable location rather than chasing it round the car?

14-07-2008, 11:49 AM	#2
NW_Merc Hardcore MB Enthusiast Join Date: Sep 2005 Location: Somewhere in Merseyside Car: 1994 Mercedes C180 classic Posts: 3,784	Does the light in the boot come on? If not then it might be that the wires are freyed from opening and closing the boot and hence need soldering together. My car failed its MOT because of this and I was guided by a fellow member to the problem which was a straightforward fix. __________________ Car: 1994 W202 C180 Modifications: Electric leather interior, Rear windows and headrests, Harman Kardon drive & play, Club mod pedals, Illuminated sills, Chrome door pins alloy wheels, Clear corners and facelift rear clusters, Avantgarde grille, Waiting to be done: Updated gear stick, W210 mirrors, WALD kit, Comand (maybe)

14-07-2008, 04:15 PM	#4
crammy69 Hardcore MB Enthusiast Join Date: Feb 2008 Location: Sidcup,Kent Car: 2001 W210 E55 AMG, 2010 Fiat 500 1.2 Lounge, 2009 Jinlun Texan 125-11, 2010 LML Star 125 DLX Posts: 860	Sounds like my issue, what you need to do is trip off the cable protector and find where the earth is broken. With mine I found it was (weirdly) at the point after it leaves the boot hinge under the rear shelf. Find the break, insert a bullet /crimped type connecter and shuld be good to go. __________________ Previously.... 1991 W124 300CE-24V Auto, 2002 Vauxhall Zafira 1.8 Manual, 1995 FTO 2.0GR Tiptronic, 1991 Eunos Roadster 1.6 Manual, 1997 Land Rover Discovery 4.2 V8 Auto, 1997 Mercury Sable 3.0 Auto, 1992 Mazda Chronos 1.8 Manual, 1983 Peugeot 205 1.1 GL, 1977 Triumph Spitfire 1500 Manual, 1986 Rover Vitesse 216 Manual, 1986 Ford Escort XR3i Manual, 1982 Ford Capri 1.6L Manual, 1979 Matra Simca Bagheera Manual, 1977 Ford Escort 1.3L Manual.

14-07-2008, 12:45 PM	#3
tpv01 Hardcore MB Enthusiast Threadstarter Join Date: Jul 2008 Posts: 170	just been to check and you are right the boot light doesnt work. please help.

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