Hello,
I have two cars with the 7 speed fill from the bottom transmission.
07 gl cdi
14 e350
Both due for the trans service.
I was quoted a price of 450 for the gl (red fluid) and 525 for the e350 blue fluid

I think I am going to just get a tool and do it myself.

Question, what tool do people recommend?

I have looked at the Baum, miteyvac, the amazon choice no name, atsmb19, Oem tools.

Any favorites?

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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12
1982 380SL
1978 450 SEL 6.9 euro restoration at 63% and climbing
1987 300 D
2005 CDI European Delivery
2006 CDI Handed down to daughter
2007 GL CDI. Wifes