The Thomas J

WTF am I reading??? Dude, I have given you every benefit of the doubt when it's come to this project. However, if you don't know the basic function of an alternator than you need to stop trying to fix this car on your own. You don't have a grasp of basic mechanics. Either bring it to a mechanic and get it worked on or get rid of it.

stephenmay

beautiful

stephenmay

I considered a 2005 CLS 63 (550 twin turbo) done 90K's and backed off when i saw a 2005 S500 with 60k's for the same money - comment?

stephenmay

Hi Thomas - I assume you misunderstood something re. the alternator etc. - I don't blame you if you are a little embarrassed from the senior's comment - I'm no mechanic but I'm smart enough to work things out if the information is free flowing - I'll give u a hand if you like? I have an auto electrician that doesn't mind answering a few questions - could you link me to that thread and I'll reply politely - WTF really is a caustic phrase when you enter a forum looking for help.
Steve

stephenmay

For instance on utube a W140 owner mentioned that if your battery doesn't measure 12.5v in the morning after its sat all night then its probably stuffed and may not be the alternator!
Yeah that's a srprise isn't it - the mechanic said that even if the battery starts the car well it may still be no good!
Steve

stephenmay

And the "my brains screwy" icon (motocon?) is also unpleasant
Steve

stephenmay

nice Bimma by the way - that's my favourite shape after the 7 series of the same year but I went the way of the W140
Steve

stephenmay

incidently I had the WTF reply too - I believe you can permanently block someone from your posts - have u done that because I did and it was somewhat satisfying.
Steve

just1time

Oh Man Oh Man....This project definitely has taken a nosedive.

Mike5215

Which is really saying something, since it started out in a hole to begin with.

Mike5215

WTF?

just1time

To OP, I rooted from you from the beginning (well, everyone is..in one way or other) and i still am rooting for you. But you are on a path to self-destruct.
You keep putting the carriage before the horse.
Please Please Please Please Please Please get this car scanned with the right tool. That should have been the very first thing. STOP buying parts for no reason until you are certain you need it. The S-Class is a moneypit when it comes to repairs.Do things in the right order and there is a chance you might get this car on the road in no time.

MrRat

If you've measured the voltage of the accessory battery while disconnected, the alternator will have no effect on that measurement.
If you measure the disconnected accessory battery at 12.6-12.8v, then it does appear to be a voltage regulator issue.
Use a methodical, parts conservative approach to debugging your issues. You are on the right track. You just need to ensure that the replacement accessory battery is at or near 100% state of charge.

I know from personal experience when a dealer parts department battery was given to me at less than fully charged, installing it in that state may have resulted in the same errors.

I more or less killed an almost new AGM battery by letting the car sit for months at a time with insufficient time to fully charge.
In this case I pulled the battery since it was unable to hold a charge, the parts dept tested it and gave me a new one at no additional charge. That one worked fine and all the errors went away.

Once you have the proper voltage, then if issues persist, you can have the car scanned (more worthwhile to just buy a star diagnostics system). If you brought it to the dealer, they'd just replace the accessory battery with a fully charged new battery and then go from there.

DaveW68

I'm starting to think that we've either been punked, or that Benzs55 is the real life Simple Jack.

boltonblue

You're confusion is your brain's way of telling you to go bring it to a professional who doesn't have any doubts.

Yes it will cost money but... you will save a fortune by not throwing good money after bad.

boltonblue

Gee after you get the S back together you should consider something to add to the garage that is a little more sporty.
This only looks like you have to bolt the missing parts back on.
http://www.copart.com/us/Lot/16361536

shak

In for some Rubber Mallet action.


What are the +- on bets for the new "alternator" fixing the current issue?

OP, I sever heard of Alternators go bad for cars under 100k miles, unless they had fluids spill on them. I hope wherever you ordered it from will accept returns.

mercedesbenzs55

Haha! I love this scene!!

mercedesbenzs55

Ill replace the battery today and see what comes of it.

Mike5215

Never go full retard.

just1time

LMFAO

DaveW68

We should have warned him about that back on page 1. He's gone full on Sean Penn in I am Sam.

mercedesbenzs55

Ya'll make my eyes rain!

xpl0sive

I don't think its the alternator either. Your car stayed running for a good while. If your alternator wasn't working, the engine would have drained the batteries down to nothing and died. I'm sure you don't know how an engine's electrical system works, but the batteries are only used to operate the starter motor to get the engine going. Once it's running, the coils use the electricity produced by the alternator in order to produce spark. If the alternator is shot, the coils will use power from the battery, until the battery is dead.

You most likely got an old AGM battery from the parts store. I suggest getting either a Mercedes or an Interstate battery. I recently replaced the same type of battery in my BMW, and the dealer cost was only $10 more than Interstate.

Did you put the old alternator back on? If not, getting another battery won't do you any good, unless you can run the car.

mercedesbenzs55

I put the alternator back on so it can run. I've got the battery in my car atm. The parts store will charge it/rule out if its defective. Also going to take it to my dads mechanic who has Mercedes diagnostic. $47. And they will go in and figure out where the breakdown is.