Daily Archives: October 18, 2026

The transmission flush

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Every 80,000 miles you’re supposed to change the transmission fluid on a sprinter van. I missed that by 22,000 miles but I eventually did it.

For my model, this is the kit I needed. They tried to sell me the wrong one first.
There is no way to completely drain the pan from the drain plug. 
Jack really helps in both putting it up while screwing it in place and keeping it up while unscrewing it 
I broke a few of these. I didn’t know that Mercedes recommends replacing them every time.
I ended up buying one of these and a bunch of new screws. They are supposed to be tightened to four Newton meters, and then 180°
The transmission oil refill goes under that small little black cap.
The instructions call for 5.5 L. My container has a line for 5 L and I used a yogurt container with a line on it for the half liter. In the kitchen I had a measuring cup with 1/2 L marked so I filled it with water and then filled the yogurt container with a half liter and made a line.
Missed it by 22,000 miles.
The Mercedes part had a little tabs that stuck in holes holding the seal in place during installation. I did not have a problem with the offbrand part I used, but it did not have the little tabs to hold it in place either.
My van takes the square like filter