Mercedes has this as a kit for $12.5. The part number is a0149977045. It is labled as some kind of vacuum kit.
Indicator that the pressure relief valve may need to be rebuilt: starting takes longer or will not start when warm.
Re: 02-03 Sprinter Fuel Regulator O-Ring Kit
I used a 1/4 hex bit tip holder to remove the bolts on the rear pressure regulator because a standard torx would not fit on the driver side. I cut the hex shaft a bit shorter and stuck a 1/4 socket on the end with a 1/4 ratchet. Take the driver side bolt out together with the regulator so you don't drop it.
http://www.homedepot.com/p/DEWALT-3...353?N=c25l?Ns=P_REP_PRC_MODE%7C0#.UnWD2nCajnc
Indicator that the pressure relief valve may need to be rebuilt: starting takes longer or will not start when warm.
Re: 02-03 Sprinter Fuel Regulator O-Ring Kit
I used a 1/4 hex bit tip holder to remove the bolts on the rear pressure regulator because a standard torx would not fit on the driver side. I cut the hex shaft a bit shorter and stuck a 1/4 socket on the end with a 1/4 ratchet. Take the driver side bolt out together with the regulator so you don't drop it.
http://www.homedepot.com/p/DEWALT-3...353?N=c25l?Ns=P_REP_PRC_MODE%7C0#.UnWD2nCajnc
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