EGR clean only when required
Is there a service interval for cleaning or replacement of the EGR. I have an 08 Sprinter 3500 (3.0 diesel) I don't have any problems now, no codes, etc. Just looking to avoid trouble.
walt
No.
I agree with Jon, solve a problem, if your Sprinter is running fine let it roll wait till you have an issue and if you never have one that's best. There has to be a limited number of times you can clean each egr valve. Be nice to the valve finish, all hoses and connectors, keep the degreaser away for the egr valve motor and all electrics because collateral damage from your own hand sucks.
I just completed my 2nd valve cleaning, in both cases I was solving an issue, a slow decrease in mpg's and increase in egt's with rough running and sluggishness.
Simple procedure: Disconnect power post, egr harness, remove both coolant lines (catch coolant), remove oil filler bolt, wiggle the valve out and carefully clean only the port and impeller. I am using only de-greaser* and last step a soft rag, 4 applications compressed air and finally wipe clean. The machine finish on the valve should not be scratched with a wire brush or worse (seems like this would allow deposits to stick more), reverse steps to install the valve.
*Zep Commercial Fast 505 Industrial Cleaner and Degreaser, 128 oz Item number: 6922165
(Osh)Sale Price $2.99 (this stuff worked great maybe 10, 4 application valve cleanings per bottle)