I have a Mercedes S320 , when i turn the key all lights go on and the radio but it will not start it is not even making a sound , that hapend on monday and today when i was trying to started now battery is out too
could this be the starter

please help i have no other car

Try "N" gear selection...

we tryed that it did not work, it is little low on oil but i dont thing it is that

Sounds like battery, which can be strong enough for lights but not for starter.

..then mention that so we know where to start..

To the left of the brake master is a firewall between the engine and booster...look there and you will see a 3 wire connector mounted to that wall . Put the trans in P and run a jumper wire from the bat + terminal to the center wire at the 3 wiree connector..that should jumper the Starter.
Report finding.

Sounds like you're saying to jump power directly to the starter. Since the original poster doesn't sound very experienced with this kind of thing, it would probably be prudent to advise to wear heavy gloves and safety glasses or face shield when doing this and be ready for a brief shower of sparks. And use heavy gauge wire.

And, what year S320?

Brett

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1997 S600 sedan

He is not jumping the Starter, he is jumping the solinoid...and I assume you know the difference between amp draw of the primary solinoid circuit in camparison to the amp draw of a starter..

You a TECH ?????????????????????


... for original poster:
Do a Search On "X27 " ..that is the 3 wire terminal we use for starter circuit verification...there are many post on the subject. Wire size for jumper will be same as the center wire at the X27 terminal....it is the starter that requires a heavy cable , not the solinoid in this simple circuit test.

which gauge is suitable? Thanks!

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

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1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE

It Is 1995 I Dont See The 3 Wiree Connector

This happened recently to my 94 SL320. Started fine then all of a sudden nothing. Just all the idiot lights lit and the roll bar button beeping and flashing. John Hef, a Master Mercedes Mechanic and member here found it was a fuse. Make sure you check all your fuses for corrosion and reseat them. Hope this helps.

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99 ML320
94 SL600
92 SL500
95 E320 Cabriolet
87 560SEC
86 300SDL Grease Car
80 380SLC Euro

13 Fiat Abarth
02 Maserati Spyder Cambiocorsa
00 BMW Z3
90 Rolls Royce Silver Spur
80 Ferrari 308 GTSI
88 Jaguar XJS12 H&E Edition
99 Land Rover Discovery

If you can not find x27, then fuse #16 [ starter lock-out relay K38] would be the next step. Check that and I will verify W140 X27 location.

x27 is passenger side footwell on 140.

In regards to PowerPigs post....

There was a fuse change for that chassis if that fuse is blown [ the fuse will be the same as cigar lighter, so look at your fuse map/key chart]

Here is a post containing the change made by Benz if blown fuse condition keeps coming back

http://www.peachparts.com/shopforum/showthread.php?t=193002&highlight=x27

Just change the fuse first to verify if that is the problem. If it is , the Benz change was to get power for that lockout relay [ k38] elsewhere b/c of the chance of power failure at cigar lighter circuit due to people using that socket to power phones, cd players, accessories etc.. made for a good chance to blowing the fuse on that circuit and leaving one standed with a No Crank condition.............

Very well put. I told my friend when it happened I thought it was a fuse but it was snowing like hell and getting dark so I had AAA haul it to John who found the problem.

__________________
99 ML320
94 SL600
92 SL500
95 E320 Cabriolet
87 560SEC
86 300SDL Grease Car
80 380SLC Euro

13 Fiat Abarth
02 Maserati Spyder Cambiocorsa
00 BMW Z3
90 Rolls Royce Silver Spur
80 Ferrari 308 GTSI
88 Jaguar XJS12 H&E Edition
99 Land Rover Discovery