dear all any help is appreciated.
My car will not charge the battery, so I changed the volatge regulator.
However I still get no battery light when I turn ignition to position 2 (the one before cranking engine). I recharged the battery and I am getting 13.80 Volts at 2000 rpm at the battery terminals. Also when I droive it around the alarm will start going off and lock all the doors so I have to pull over and insert key in the passanger door to disangage alarm. Any ideas?
Please I need to get out of New Orleans before this monster hurricane gets here.
thanks,
ACM

If you are getting 13.8v at the battery, it is being charged.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

is there any way that I can directly plug a multimeter into the back of the altenator and see if I get charge?
Also, how do I disable the factory alram? is there a fuse or a relay that I can just take out until I get back and fix it?
thanks
ACM

No need to check at the alternator if the battery is showing 13.8 while running. If it shows 13.8v with the engine off I'd get a new multimeter. I suppose that you could get a battery to sustain 13.8v for a breif period right after a hard charging. If you get 13.8 from the battery without running, turn the headlights on till the voltage drops to 12.5v or so when the lights are turned off and start the engine and try again.

Unplug the controller to disable the alarm, I don't remember where it is on 124. I'm sure it is in the archives.

__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

It's under the passanger side floor mat next to the SRS box with the red plug. Don't touch this one! The Alarm module usually says Bekker on it because it's hooked up to the radio.

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Current Stable:
01 ML55 AMG
92 500E (a few mods)
87 300E (lots of mods)
00 Chevy 3500HD Diesel Box Truck
68 18' Donzi Marine
06 GT i-Drive7 1.0 Mountain Bike (with GPS!)

PREVIOUSLY OWNED:83 300SD, 87 420SEL, 88 420SEL, 90 420SEL, 86 560SEL, 86 190E 2.3-16V AMG, 94 E320

time for me to get out of the city.,
I hope I will be able to talk to you agan people.
Thanks for everything
ACM

On my '86 300E, the alarm modue was under the passenger floor mat. I needed to remove both the flat part and the part which slopes upward. The module can be disconnected by unplugging the connector on its side. I disconnected mine because humidity caused false triggers.

Hope you can get the car out in time. Don't put yourself at risk, you can always get a new car. That is one scary storm.

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1986 300E
1993 Volvo 940 Wagon
1984 Volvo 240 (daughter's)
1976 Dodge 1/2T pickup, gas hog