Never buy my parts at the dealer or go to the dealer (I do everything myself) for anything. Complete rip-off when I can buy $18 lemfoerder ball joints off of pelican instead of $80 MB ball joints from the dealer and they have the MB label. Also, they won't want to work on the car because the techs have absolutely no idea what a CIS-E injection system is or an OVP relay and what it does. I wouldn't want them working on my car anyway, the cars are getting aged and sometimes good condition parts are harder to find. They may break something or screw something up. And let's face it, just cause you work at mercedes does NOT mean you're a good tech. My father worked at mercedes for 20 years and they brought in a lot of young guys who broke stuff all the time and they'd cover it up and charge the customer double.

Dealers are the devil! And so are the parts prices.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k