1996 E320 Wont Start
 

I have replaced the fuel pump and the crank sensor and the car has plenty of gas. It has 198k miles but still wont crank over. I put the key it, the engine turns and turns and turns and just wont kick over. I am unsure what to do next. Can someone please help me. :mad:

Fuel pump and crank sensor aren't cheap - what led you to believe they needed replacing? Did you check for spark?

If the gas comes at the motor with suitable pressure i would check for injector activity because it is easier than checking spark. If there is none i'd smack the K40 relay around a bit.

I have no idea where the K40 relay is... And How would I test the injectors.

I suppose current ramping is out, maybe audibly.

Where is the relay switch?

Where is the K40 relay switch on this car?

Isn't it near the ECU?

Yes both are in the electrical center, right rear of eng compartment.

Did you have any luck with this, as I have a similar problem with my 1997 e320?

Cranks , Won't start
 

Try a little shot of gasoline or starting fluid i the intake(less than a teasoon) if it still won't fire it's an ignition related problem if it fires and dies it's a fuel related problem.
Mike Freeman

I messed and messed with it... To much snow to full with it now. I sent it to a local Chevy dealer (has a MB tech on hand). He ran some test and told me he is sending a list to me in the mail... Im sorta scared since he is mailing a LIST! I will let you guys know tomorrow what he fount... $120 fees and a $52 tow fee... not cheap.

Scan engline controls found invalid transponder
signal endgine control module sut down due to security problem
Infared sensor on drivers door needs replaced.

He said I would have to take it to the MB dealer to have the program transponder and part installed.

Can someone please help!!! I have spent way to much money for such a smiply problem!!! :confused:

Anyone???
 

:(ANYONE???? I really would like to do this myself to avoid spending more money on the car.

What you need is someone who knows what they are doing. The door receiver has nothing to do with running. The drive authorization comes from the chip in the key being recognized by the ring around the ignition switch.

What Next???
 

Okay so the key isn't the problem... What sould I do about the other two things thats wrong? Does it have to go to the dealer? How much will parts cost?

I didn't say the key wasn't the problem. I said the door receiver wasn't. The 1996 model is a transistion one and early models don't have drive authorization. Late ones do but they have a large black ring around the ignition lock cylinder. You would have a drive authorization code if it were the problem.

Does it have to go to the MB dealer for the other problems the MB tech fount?:confused:

It needs to go to someone who can fix it. There are many independents who have purchased the diagnostic tooling from MB and are capable. It's hard to say who has the knowledge but a good bet is that anyone who has a MB SDS diagnostic computer would know how to diagnose your car.

It just has to be something simply... If it starts it dies immediately. I just wish I could get this up and running, other than not starting she is a great car!

Do you have a different key to try? Your key may be bad.

BTW

Its getting expensive because your "throwing" parts at it. This is very foolish and expensive.

Transponders go bad, Ive replaced a couple- But at this point dont spend a drop of money on it if you dont know exactly what the prombelm is. If that means going to the dealer then so be it. Its not appering to be a "simple " problem