|
|
|
#1
|
|||
|
|||
123 charging system problem
so my neutral start/safety switch in my '82 300d died. in doing research here i discovered that bridging the three pole junction on the right side wheel well of the engine bay can bypass the nss and engage the starter. this junction is called "C105" in the MB electrical troubleshooting manual. well, at the time i couldn't find detailed information on which poles to bridge other than "the skinny wire to the fat wire". so i bridged terminals 2 & 3. the car started. great! but i noticed later that the alternator doesn't seem to be charging the battery anymore. The funny thing is that the red light on the instrument panel which indicates a charging system problem does not illuminate (other than when the ignition key is first rotated as part of the power-up test). In looking at the schematics, it appears i should have bridged terminals 1 & 3 (the outer ones). Does anybody have any idea what i have shorted or damaged and what i need to do to fix this?
|
#2
|
||||
|
||||
Have you put a DVOM up to the battery and see what voltages you have when the car is running?
__________________
91 350SD 14 F150 Eco 19 Fusion Hybrid 11 GT500 |
#3
|
|||
|
|||
not yet, as i am out of town and away from the car. but i will do that first thing when i get back. i suspect it will read nominal battery voltage. like i said, the battery got totally drained when i was driving around at night for an hour. the headlights were basically out.... fun times.
|
#4
|
||||
|
||||
Quote:
At least it runs with no electricity!
__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy" Current Monika '74 450 SL BrownHilda '79 280SL FoxyCleopatra '99 Chevy Suburban Scarlett 2014 Jeep Cherokee Krystal 2004 Volvo S60 Gone '74 Jeep CJ5 '97 Jeep ZJ Laredo Rudolf ‘86 300SDL Bruno '81 300SD Fritzi '84 BMW '92 Subaru '96 Impala SS '71 Buick GS conv '67 GTO conv '63 Corvair conv '57 Nomad |
#5
|
||||
|
||||
Except that your Heater will now come on full blast when you want Cold!
__________________
1983 300D-Turbo - Deep Blue w Palomino MB Tex (total loss in fire 1/5/09 RIP) 1995 E320 W124 Polar White/Grey Mushroom MB Tex 2005 F150 Supercrew - Arizona Beige - Lear topper 1985 Piaggio Vespa T5 - Black and Chrome www.cphilip.com |
#6
|
|||
|
|||
case recap: the jumping of the relays happened to coincide with the death of the alternator voltage regulator assembly. once i replaced the voltage regulator and neutral start switch, all was well.
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|