• Hi Guest !

    Welcome to the 500Eboard forum.

    Since its founding in late 2008, 500Eboard has become the leading resource on the Internet for all things related to the Mercedes-Benz 500E and E500. In recent years, we have also expanded to include the 400E and E420 models, which are directly related to the 500E/E500.

    We invite you to browse and take advantage of the information and resources here on the site. If you find helpful information, please register for full membership, and you'll find even more resources available. Feel free to ask questions, and make liberal use of the "Search" function to find answers.

    We hope you will become an active contributor to the community!

    Sincerely,
    500Eboard Management

Little to no spark.

winmutt

E500E Enthusiast
Member
Can I simply test for spark by taking a plug wire and putting it near ground and seeing if it arcs? Same with the wire from the coil to ground? Also, I'm familiar with testing old style canister coils, are these the same? I haven't had much luck. There are two screws at the front of the coil and I get 0 ohm between them.
 
Can I simply test for spark by taking a plug wire and putting it near ground and seeing if it arcs? Same with the wire from the coil to ground?
Yup!

Also, I'm familiar with testing old style canister coils, are these the same? I haven't had much luck.
The coils are similar, but receive high voltage from the EZL, so don't do any "live" testing.


There are two screws at the front of the coil and I get 0 ohm between them.
Normal resistance is around 0.4 ohms, give or take a couple of tenths. You need a quality ohm meter that reads accurately below 1 ohm to get a good reading. But they should not be zero ohms, this would indicate a failed coil... never seen this though. Resistance from either terminal to the high voltage output should be around 10k ohms.

:shocking:
 

Who has viewed this thread (Total: 1) View details

Who has watched this thread (Total: 1) View details

Back
Top