somehow I couldn't make sense of that either. The light should be on when the key is in the on position, but goes out when the engine is started. Didn't sound like a alternator problem, more like open ground or bad switch 69 280 SEL 120,000 Miles 72 350SL 108,000 Miles 2004 VW Passat 4 Motion 1999 Mazda Miata -----Original Message----- From: Hans Neureiter <[EMAIL PROTECTED]> To: Mercedes mailing list <[EMAIL PROTECTED]> Sent: Tue, 15 Nov 2005 06:54:28 -0600 Subject: Re: [MBZ] screwed up 560SEL charging system
Need to correct the last statement: Should red "light off with key on and engine off and light on with engine running is a sign....". Reading your original post, sounds like a problem in the ignition switch. On 11/15/05, Hans Neureiter <[EMAIL PROTECTED]> wrote: > > With the engine off, the battery should be 12.5 to 13 V. During starting, > it should not go below 9V. When it started, the voltage should ramp up to > above 14 V and taper off to near 13V at idle and increase with RPM. If it > satays at 12V, that's likely the battery voltage, not charge voltage. The > light off with key on and on with key off is a sign of an open regulator > circuit. > > On 11/14/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > Normal charging voltage is usually between 12 and 14 volts, depending on > > the load on the battery. You don't really need the alternator to push to > > much voltage since all it is really doing is keeping the battery topped off. > > To much will cause it to overheat and boil over. If you are getting 12.2volts out is that without a load ? No accessories running ? You won't get > > much more than that unless you put a load on the alternator. Try putting a > > load on the system by turning on accessories, wipers, fan, radio, lights and > > see what happens. > > > > 69 280 SEL 120,000 Miles > > 72 350SL 108,000 Miles > > 2004 VW Passat 4 Motion > > 1999 Mazda Miata > > > > > > -----Original Message----- > > From: Kaleb C. Striplin <[EMAIL PROTECTED] > > > To: Mercedes mailing list <[EMAIL PROTECTED]> > > Sent: Mon, 14 Nov 2005 13:53:14 -0600 > > Subject: Re: [MBZ] screwed up 560SEL charging system > > > > > > 12.2 is not enough, it needs to be over 13.1 at the minimum, should > > normally run 13.3 to 13.5 though. > > > > Levi Smith wrote: > > > > > Uhh, unless I'm missing something, 12.2 isn't really enough. I would > > only > > > expect to see that if maybe you're overloading the alternator at idle. > > > > > Batteries should be at 13.2v or higher. > > > > > > Levi > > > > > > On 11/14/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > >>Kaleb, its not just the volts that the alternator should be putting > > out ( > > >>12.2 sounds ok) its the amps thats needed for keeping the battery > > charged. > > >>Have you checked all your grounds ? A bad ground could cause those > > symptoms > > >>since you said putting in a new battery worked, but the red battery > > light > > >>stays lit. That sounds to me like a weak ground on the battery side.. > > >> > > >>69 280 SEL 120,000 Miles > > >>72 350SL 108,000 Miles > > >>2004 VW Passat 4 Motion > > >>1999 Mazda Miata > > >> > > >> > > > > > > _______________________________________ > > > 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://striplin.net/mailman/listinfo/mercedes_striplin.net > > > > > > > > > > > > > -- > > Kaleb C. Striplin/Claremore, OK > > 89 560SEL, 87 300SDL, 85 380SE, 85 300D, > > 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, > > 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 > > Okie Benz Auto parts-email for used parts > > > > _______________________________________ > > 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://striplin.net/mailman/listinfo/mercedes_striplin.net > > ___________________________________________________ > > Try the New Netscape Mail Today! > > Virtually Spam-Free | More Storage | Import Your Contact List > > http://mail.netscape.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://striplin.net/mailman/listinfo/mercedes_striplin.net > > > > > > -- > Hans Neureiter, Houston, TX > '82 300SD, '95 E300D -- Hans Neureiter, Houston, TX '82 300SD, '95 E300D _______________________________________ 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://striplin.net/mailman/listinfo/mercedes_striplin.net ___________________________________________________ Try the New Netscape Mail Today! Virtually Spam-Free | More Storage | Import Your Contact List http://mail.netscape.com
