C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

What type of transmission Fluid should I use on my c320?

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Old Nov 6, 2024 | 05:50 PM
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Mercedes Benz C320 4matic 2005
What type of transmission Fluid should I use on my c320?

I have a c320 2005 4 matic, 5-speed transmission 722.6, and I also read the owner’s manual but can’t find specific information. I don’t know what transmission fluid I can use.
I found this MB Part 001 989 21 03 10 but I couldn’t find the fluid on internet.

Let me know which one should I use?
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Old Nov 6, 2024 | 06:58 PM
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2003 C230K Coupe Orion Blue
The stuff I bought last year from the dealer was PN 000-989-26-04-11. FYI only the first 10 digits are important. At that time, the latest spec is MB-Approval 236.14.

If you have older fluid (236.10 or 236.12), they'll still work. The latest spec just has improved properties.

I imagine the fluid PN and spec are the same for every 5 speed transmission out there. If in doubt, call the dealer.

Last edited by slammer111; Nov 6, 2024 at 07:01 PM.
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Old Nov 7, 2024 | 02:52 PM
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W203 C240
Buy the fluid straight from Mercedes
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Old Nov 9, 2024 | 02:09 PM
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Shell ATF 134. Mercedes approved! 1/2 the price.
Here's the complete list.
I've also used Pentosin since it was available locally.
https://operatingfluids.mercedes-benz.com/sheet/236.14

Last edited by C230 Sport Coup; Nov 9, 2024 at 02:16 PM.
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