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  #1  
Old 10-18-2008, 11:37 PM
meltedpanda's Avatar
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Stumped on the W123 - no dash lights

1985 300D everything functional after rebuild but dash lights, ACC lights, window lights. Fuse in fuse box OK, Just cannot figure what is going on, must all be related. I don't know where else to look, I have grounds in tact, just no power, fuse , as tested is good. What am I missing
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  #2  
Old 10-19-2008, 09:43 AM
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The dash rheostat. Its a common failure, search it.

Best thing to do it remove it completly and solder a wire across the two remaining pins.
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  #3  
Old 10-19-2008, 12:50 PM
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Probably the reostat.
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  #4  
Old 10-19-2008, 11:20 PM
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I have traced power to the dash panel,none beyond that. Just how does one get to the rehostat. I have removed under dash panel , can put my hand on it but , what next?
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Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
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  #5  
Old 10-20-2008, 11:21 PM
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You'll need to take the cluster out, if you can get your hand on it now, just push it out from behind.
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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350
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  #6  
Old 10-20-2008, 11:31 PM
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Once you have the cluster out, you'll need to remove two Philips head screws and carefully lever the rheostat off of its pins. It is a tight fit and feels like something will break – the second time is easier 'cause you know it comes off but that doesn't help the first time.
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  #7  
Old 10-27-2008, 10:33 PM
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well not the rheostat but a fried board, the little copper lines were toast, in process of wiring up some jumpers, has anyone done this succesfully?
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Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
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  #8  
Old 10-28-2008, 12:07 AM
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Quote:
Originally Posted by meltedpanda View Post
well not the rheostat but a fried board, the little copper lines were toast, in process of wiring up some jumpers, has anyone done this succesfully?
I cracked the board on mine when removing the cluster. 3 or 4 of the lines were messed up, so I cut some wires to length and soldered them across the broken lines. No problems since.

Obviously, if yours are burnt, make sure you figure out why before you hook it back up.
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  #9  
Old 10-29-2008, 10:18 AM
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yup shorted out some lines downstream when removing the center console
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Ron
2011 Porsche Cayman - Bond,James Bond
99 E320 THE Queen Mary
62 220b - Dolly - Finally my Finny!
72 450SL, Pearl-SOLD
16 F350 6.7 Diesel -THOR
07 Lexus RX 350 - Lexi
14 38HP John Deere 3038E Tractor -Mean Green
84 300SD, Benjamin -SOLD
71 220 - W115-Libby ( my first love) -SOLD
73 280 - W114 "Organspende" Rest in Peace
81 380 SL - Rest in Peace
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