Originally Posted by
srtmodder
So the replacement ones will last longer now? Not 30,000 and done?
There's an upgraded version of the stock pump available, direct plug & play. I got mine for $122.00 shipped.
Mercedes Auxiliary Water Pump - Bosch (OEM) 0392022010 | FCP Euro
I had the same symptoms and replaced mine this past weekend. Installation was pretty easy and took less than an hour from start to clean-up. It seems to have solved the issue.