1993 300se won't start - PeachParts Mercedes-Benz Forum

jhholl · #1 05-23-2008, 10:33 AM

My 93 300se engine will turn over but won't start. It has always started immediatly but gradually it took longer to kick in. I then began starting it by pressing the gas a little (which I know I should not do). I replaced fuel filter, fuel pressure regulator, wiring harness 1 year old, battery, and I sanded the rotor and distributor cap so that they are clean. I used a spark plug tester between the distributor and spark plug wire and did not get a light. I also smell no gas. Right now i'm waiting on my new cap and rotor to come in. Any ideas ?

ozzy · #2 05-24-2008, 10:08 AM

Can you hear the fuel pump kick in when you first turn the key?

jhholl · #3 05-27-2008, 11:12 AM

Yes, I hear the fuel pump and it does kick in.

jhholl · #4 06-11-2009, 09:30 AM

The solutions was replacing the ignition switch located behind the drivers side head light.

bolomiester · #5 06-11-2009, 10:41 AM

Quote:

Originally Posted by jhholl

The solutions was replacing the ignition switch located behind the drivers side head light.

When you say, "ignition switch" are you referring to this part?:

david s poole · #6 06-11-2009, 10:53 AM

ok is this a 300se or 300e because the se has no cap it's a 104 engine.

Arthur Dalton · #7 06-11-2009, 12:48 PM

Quote:

Originally Posted by david s poole

ok is this a 300se or 300e because the se has no cap it's a 104 engine.

Other way around.

He has a 104 , but he still has a cap/rotor ign system b/c it is a 104.990 eng.
The 300E of '93 has the HFM coil over DIS ignition ..104.992.

ALL early 104.990 engines were cap/rotor.