OM647 Fuel Rail Removal & Replacement Guide

Million Mile Sprinter |

If you need to swap the fuel rail on your OM647-powered Sprinter, this one is refreshingly straightforward. In part 5 of a 6-part series, Joel shows exactly how to remove and replace a fuel rail on an OM647 engine — and the whole job takes about 90 seconds. Easy-peasy.

Symptoms

This video is a how-to, not a diagnosis: it demonstrates the removal and replacement procedure itself rather than tracking down a specific failure. If you have already determined that your OM647 fuel rail needs to come out, this is the job you are looking at.

Diagnosis: Where It Hides

The fuel rail sits on the OM647 engine and distributes fuel to the injectors. Because this is a direct swap demonstrated in the video, there is no hunting for a hidden leak or fault here — the video walks through the rail coming off and the replacement going on.

What You'll Need

  • A replacement fuel rail for the OM647 engine
  • Basic hand tools for the removal and refit, as shown in the video

Step-by-Step Fix

  1. Watch the full video below first so you can see the complete removal and replacement before you start.
  2. Remove the old fuel rail from the OM647 engine, following the sequence shown in the video.
  3. Fit the replacement fuel rail in place of the old one.
  4. Confirm everything is seated and connected as shown before running the engine.

Note: This guide is based on the source video, which demonstrates the swap in 90 seconds. The video itself is the step-by-step demonstration — no torque specs or additional procedures have been added beyond what the video shows.

Pro Tip

Because the whole swap takes about 90 seconds in the video, the real work is in being prepared: have your replacement rail on hand and watch the demonstration once through before you pick up a tool.

Parts You'll Need

OM647 fuel rails and a full range of Sprinter parts are available at MillionMileSprinter.com.

Watch the Video

See the fuel rail removed and replaced in 90 seconds in the original Instagram reel: Watch the OM647 fuel rail swap on Instagram.

For Sprinter parts for all years, visit MillionMileSprinter.com.