ssuh

Hi, everyone. I'm about to swap the Ignition Voltage Transformer on my dad's 2006 S65 AMG. Basically, this is the little rectangular metal box in the middle of the engine bay.

It seems very straightforward. BUT-- does anyone know if I need to have the unit programmed at the dealership? Or is it just plug and pray... I mean play.

Any other advice would be appreciated!!!

PS-- This is to hopefully fix an intermittent driverside misfire/sluggishness that has been hard to nail down.

NRL

yes, it's pretty easy.. Swap and play. No re-programming needed.
The hardest part for the first time is the connector.. you have to move the tab out so the connector disconnects..

If you troubleshooting misfire issues, it is the easiest and cheapest to replace but it most likely not the issue.

I myself had misfire issues and started with that but it didn't improve anything but being newer. Then I proceeded to replace the coil packs with new ones (the ones with the new part no#) and new spark plugs.

All is well and the car runs like a beast.

ssuh

Thanks NRL! Exactly what I wanted to hear. Stoopid stealership told me I needed to reprogram for $110.

I tried changing the coil pack with the new part #, but still get intermittent powerloss and CEL.