Step by step coolant flush - m276 motor in a W212 E350
I saw a great
The E350 manual says it's a 10 quart system but offers no details on the drain plug (petcock). I've read some threads about folks breaking the MB petcock which is kind of a bummer.
They say to use Zerex coolant which is up to MB spec. Don't forget to use distilled water and burp the system.
I found a decent Car Care Kiosk video that details this process for our car.
8MM wrench takes the undercarriage bolts off.
I'm going to assemble the supplies and try this and report back.
Last edited by Oaklandish510; Dec 28, 2019 at 02:55 PM.


