I cannot see how a bad diode/Rectifier, loose belt, bad fuse etc can keep the light on as you describe. If you read my reply , everything I predict happens, including the last part. The lamp gets ground from the "I" wire only, and only when the alternator charges. With the key of, do any other switched loads remain on, like windshield wiper, radio, etc? Check the wires at the switch. Only one wire should be hot with the switch in the off position.
On 12/6/06, MICHAEL ESH <[EMAIL PROTECTED]> wrote:
Thanks to all for your input. I just checked a few more things. Battery takes a charge with charger. Car starts with good battery. Light goes off when car starts. Light comes on when car is shut off. Voltage at battery cables with car running and unhooked from battery is 11.1 at idle to 12.2 when revved up with no lights or fans on. Other facts: Light goes out when I disconnect the alternator. I put a new Regulator in about a month ago. Thanks again for any other thoughts. Mike in Michigan ----- Original Message ----- From: "Hans Neureiter" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Sent: Wednesday, December 06, 2006 3:56 PM Subject: Re: [MBZ] Red dash light for Battery is staying on >i suspect the electrical part in your ignition switch. There may be some >ice > inside so the swith doesn't work. > The charging light gets fed 12V from the switch to one side and ground (I > wire) through the field windings on the other. Key on - the lamp lights. > When the Alternator is producing output, the windings become forward 12V > and the light goes ot since the lamp now has 12V at both sides. On a swith > that doesn't work, with the key on or off the light stays where the > switch > failed. With the car running and the alternator 'alternatering', the light > will go off, irregardless of the swith. > > On 12/5/06, MICHAEL ESH <[EMAIL PROTECTED]> wrote: >> >> >> I just went out to start my 1981 300sd and the battery was stone cold >> dead. It started fine two days ago. I put a charger on and walked out 15 >> minutes ago and red battery indicator light is on. It stays on with key >> in >> the off or on position. In addition the glow light did not come on when >> I >> tried starting it. It is about 20 digress F out there tonight. I did >> not >> start. I am going out to try it again.....Any ideas? >> >> Thanks, >> Mike in Michigan >> _______________________________________ >> http://www.okiebenz.com >> For new parts see official list sponsor: http://www.buymbparts.com/ >> For used parts email [EMAIL PROTECTED] >> >> To Unsubscribe or change delivery options go to: >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > > > > -- > Hans Neureiter, Houston, TX > '82 300SD, '95 E300D > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
-- Hans Neureiter, Houston, TX '82 300SD, '95 E300D
