Fault finding...No glovebox light or cigar lighter.

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
I've got a small problem on my W123.
The cigar lighter doesn't work. I use this socket for my tyre inflator so would like to fix it.

I've removed the ashtray and tested the 2 terminals with a multimeter - no power (and yes the key was turned).
I've checked the fuse (#4 fuse) and it's fine.
Checked resistance across the 2 terminals that are holding the fuse in place and its 1 ohm so its definately not a bad connection there.
So I've looked at the list and No. 4 fuse also runs the glove-box light. Guess what? It's not working. Tested with the multimeter - no power at the connections either.
What should I check next? Any more ideas?
Thank you
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Surely the cigar lighter comes from the ignition switch,key 1 and 2
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #3
yeah the key was turned but still no power to either circuit. :confused:
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Do make sure that all of the wires are in the ignition switch,,they seem to come out very easily, I think that the radio is on the same circuit
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #5
Arr there isnt a radio present at the moment...
How do you remove the ignition switch then to check the wires?
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
The site is down that I use for these things,,I will try and post back
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #7
Does anyone else have any ideas of what things I need to check? Electrical fault finding is not my strong point :Oops:
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
The big problem is that info on the 123 is scarce and it was never put onto WIS normally on Ebay cheap is a Haines book, and that would tell you what you need to know . I also have access to 2 web site but both are a 404 for this last couple of days
 

Alex Crow

Senior Member
Joined
Jul 9, 2009
Messages
10,677
Reaction score
40
Location
Super Suffolk
Your Mercedes
W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
go back to the fuse and check for 12v at BOTH ends. these torpedo fuses are known for causing many problems and can easily be passed over.
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #10
I'm not getting 12V at either end of the fuse. (with the key turned of course)
Why might this be?
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #12
Ok the wire I need to check is pink and yellow, but how do I get to it to check it?
Does the ignition barrel have to come out? How do I do that ?
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
You remove the under dash panel and lie up side down on the floor or look up .

I use a PIN and push it through the plastic and measure from that
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #14
Thanks I'll try it tommorow :D
 
OP
T

Tashman

Senior Member
Joined
Apr 23, 2008
Messages
439
Reaction score
14
Your Mercedes
W123-300D, W123-240D, 507D campervan, W210-E220CDI, W114-250
  • Thread Starter
  • Thread starter
  • #15
OK, I've removed the under-dash panel.

I'm laying on the floor looking up and this is what I can see.

So which wire do I need to push back on to which connection?

:confused:

Ignition006.jpg
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
That is too hard,,, and the wires are too compact, and I not want to risk any coming off.
I would now suggest that you lift the fuse box,to see if the wires behind are all attached , the wire that feeds fuse 4 comes from the switch, the other end drive the heated seat,radio,glove box and lighter.
 


Specialist Classic Parts suppliers
SLS Im- & Export Handelsges.mbH, Industriestrasse 2 - 4, D-22885 Barsbuttel (bei Hamburg)
Tel. +49 (0)40 656 939-0, Fax +49 (0)40 656 939-399
Visit our website atwww.sls-hh-shop.deto view our comprehensive catalogue of parts for:
190SL (R121), 230 - 280SL (R113), 280 - 500SL/C (R/C107)
Good English spoken and friendly service to discuss your requirements.
Top Bottom