Just got a message from my mechanic friend that the water pump on my parent's 2003 Sprinter is leaking. The two of us just replaced it last summer with a Graf unit. It's only done 15K miles since then. I chose Graf as Graf and Laso are often recommended for Mercedes but I think it may be time that Graf is removed from the recommended list. I'd say that one bad pump could be that we just received a dud but this is the second Graf pump I've had that failed well before it should have. The first was a water pump for a 240D, the shaft bearing died within 800 miles so I replaced it with a Chinese-made Duralast pump that some forum members recommended and that has lasted at least a few thousand miles. The Sprinter is getting a genuine Mopar replacement.

It is possible we received two lemons but that tells me their QC could use some work.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.