I had a similar problem that I fixed last week. I am not an expert just a shade tree mechanic. My first question would be what year Sprinter? How did you get your code? The code you are showing is typical of a generic code reader. Later today I can get you a sseries of tests to run for 2004-6 vans. Mine turned out to be the EGR valve but I wanted to make sure it wasn't the wiring or something else before I spent the $400on an EGR valve.
He indicated that the EGR is leaking coolant so it is likely a 2004 - 2006 OM647 engine. We shouldn't need to be detectives for that info though.
C'mon folks. Add your info permanently to all your posts. It's easy to do. I know that I'm to the point of not answering questions which don't include it. FWIW. vic
Add your vehicle info to all your posts automatically!!!!! It's easy to do. It will help you to get answers. Thank you.
Here's how to do it.
The most direct method is probably in your "Details".
After you are logged in click on "Private Messages" (or “Quick Links”) in the upper right corner.
On the left side under "Your Profile" click on "Edit your Details".
Scroll down to the "Custom User Title" box.
Click in that box and type the information.
I suggest “Vehicle year – NAFTA or 311, etc.” depending upon your location.
Scroll down to the "Save Changes" box. Click on that and you are done.
Another place is in your "Signature".
Click on "Private Messages" (or “Quick Links”) in the upper right.
On the left look for "Setting and Options".
Click on "Edit Signature".
Scroll down to the text box which looks like what you use to add a post to the forum. Type in the information you want.
I used
“NAFTA 2004 OM647 140 2500 Std Roof >240,000 mi. DAD” [/QUOTE]
Scroll down to "Preview Signature". If the preview looks like what you want, scroll down to "Save Signature", click on that and you're done.