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  #1  
Old 08-01-2012, 10:06 PM
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I need help with solving two car problems on 1997 S500 119engine

My 1997 S500 119 engine cranks but will not start. Everything seems to be working the battery, lights, has gasoline, it sounds when cranking that has plenty of juice but does not turn on. The fuel pressure regulator was changed about a year ago. I have no issue with car until now

A second issue probably not related to the main problem above, is that fuses #11 and 21 keep blowing up.
Fuse # 21 is a 20 amp and controls heating wipe/wash system, outside mirror, tr, oil cooler, automatic control.
Fuse # 11 is also 20 amp and control Window lift, luggage compartment light, Central locking system, ceiling/reading light, rear

Not sure what to do about the fuses problems my main concern is to get the car started. Any suggestions ideas about how to start will be more than welcome

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Old 08-01-2012, 11:05 PM
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Your car has a coded key. If the car was subject to excessively high voltages (i.e. corroded battery cable) there is a possibility that the computer was fried. Could also be a bad key. Do you have any other keys?

Have you pulled the codes? that would be a start.
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Old 08-04-2012, 08:19 PM
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Mespe

Which computer will that be?

Yes i did tried different keys but that has not help

I do have a problem with fuses # 21 and #11 shortening out, would something like that fried the computer?

I believe i trace the problem of fuse # 21 to a bad outside mirror (passenger side) apparently every time i tried to adjusted it would blown the fuse so I just disconnected that mirror and the problem went away. The problem with # 21 i trace to the central locking pump underneath the rear rt passenger seat which has not been working for a few weeks but apparently was shortening out the 21 fuse, so I disconnected and that solved the problem for the moment

My car is still death I can crank it but no start. I cant or I don't see any codes since I can get it to start is a catch 22 dilemma, unless there is a way to pull the codes or diagnose with out starting the car?

Thank you I appreciated your input
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Old 08-04-2012, 08:31 PM
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The anti theft does not disconnect because of the dead central locking pump.
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  #5  
Old 08-04-2012, 10:25 PM
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Well it apparently does for my car 97 S500 I did disconnect both electrical connections to the central locking pump and for me the anti theft was not longer operational, if I connected again the the anti theft would become operational.

I really do not believe at this point that the problem with the car cranking but not starting is with the anti theft system.

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I need help with solving two car problems on 1997 S500 119engine-c-lpump2.jpg   I need help with solving two car problems on 1997 S500 119engine-c-lpump.jpg  
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  #6  
Old 08-04-2012, 11:11 PM
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Disconnecting the central locking pump does not disconnect the anti theft alarm.
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  #7  
Old 08-05-2012, 11:11 AM
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Quote:
Originally Posted by daddi View Post
Disconnecting the central locking pump does not disconnect the anti theft alarm.
But maybe the blown fuse does? After disconnecting the vacuum pump. Lock and unlock the driver's door, then try starting the car.
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Old 08-05-2012, 11:17 AM
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I have a 97 S500 that I'm parting. the pump is gone, but the harness is still there. Infact the pump was missing from the car when I bought it, so that shouldn't be a factor. I had a new key cut, as I didn't have the remote key, and the key I had would crank, but not start. I got a valet key made and it worked fine for what I drove the car.
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  #9  
Old 08-07-2012, 03:09 AM
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I been focusing on trouble shooting one thing at the time. Today I just wanted to make sure the engine was getting fuel, so I cranked the car a couple of times and nothing happen no start. I then turn the key all the way where all the light came on and the went under the car by the side of where the fuel pump is located and I could not hear the pump there was no hum or sound at all which is making me believe it maybe the the fuel pump. I did do something I did not wanted to do and that was I got some starting fuel sprayed two puff in the main manifold I then crank it and the car started but within seconds it die again, which is making me believe that the car has spark but that no fuel is getting to engine. I do not think is the fuel pressure regulator because i changed it about a year a go, next I will check the crank sensor to see if that maybe an issue.

Of course all this happening while I am trying to get may second mercedes E 320 running I finally changed the fuel level sender in the gas tank (I posted some pictures on this site/ forum, and the oil level sensor in the oil pan, both and easy fix of which I also posting some pictures of the procedure.

I am also considering purchasing a hand held scanner to see if I can get some code readings or ideas, unfurtunately the car is not displaing any "check engine" light

Any other ideas I will appreciated, I am hoping to be able to get the car started and avoid an expensive towing to the shop

Oscar
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  #10  
Old 08-07-2012, 04:06 AM
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The fuel pump only runs for two seconds when you switch on the ignition, it then restarts when you crank the engine.

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