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Old 10-13-2018, 02:13 PM   #1
Aqua Puttana
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Default 7 Speed Transmission (4 cylinder) Fluid Change

A quick search didn't show any Write-up.

Apparently the 2.143 liter OM-651 4 cylinder (inline) 2 stage turbocharged engine with the 7G-Tronic 7 speed transmission fluid change is a bit more complex than the V6 NAG1 5 speed. Typical drain and fill methods may not work DIY. Do your research before the project. Feel free to add tips, pictures, suggestions, or links here.

I'll kick it off with a compilation. Thanks goes to all contributors.

Originally Posted by sprinterPaul View Post
Originally Posted by norson View Post
Simple job, right? I've been changing my own oil for 60 years, but because this was going it the first time for a Sprinter I thought I'd check here first. GLAD I DID!! I think I could have screwed it up.
Going to check before changing trans fluid too.

The transmission is significantly more complicated than changing oil. Definitely in the realm of diy. But your checklist is much longer. I have the 7 speed. The 5 [NAG1] may be easier.
Originally Posted by lindenengineering View Post
Yes with a 7 speeder you need a special pump injection tool!
MB has joined the gang!
Just like ZF,& Fords & Chevs etc, plus scan tool..Mustn't forget a scan tool.
Only Toyota/Lexus still retains the ubiquitous level plug!
Just like 60 years ago really when as a 9 year old I checked the gearbox oil level in a 1936 Hillman Minx in my dad's shop. And that was with a 3/8th Whitworth spanner!
All gone now!
Its called progress and DIY'rs are nowadays tolerated--just!

Originally Posted by lindenengineering View Post
This is the tool for this job.
Ensures you fill with the exact amount without wasting/spilling expensive fluid before checking final level with a scanner in most cases .


7 Speed Kit.jpg

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