It is coming up on the 15,000 mile mark on both of my cars and I was wondering how many of you actually change your ATF on the 15K interval that (I think) MB recommends.

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84 300TD - 235k - Farbe "Surfblau" bought at 213k
87 300SDL - 131k - Farbe "PimpGold" bought at 115k
00 Klepper Faltboot Expedition Double

I go 30K between changes of Mobil1 ATF. Fluid comes out as red and as fresh smelling as the day it went in.

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Fred Johnson
1977 240D
1983 300SD

You forgot the other choice, "Never/I don't care for automatic transmissions so I drive a manual."

That's one of the many reasons that I don't drive an a/t. The extra maintenance is a PITA.

My $0.02,

I changed mine right around the 15,000 mile mark. Then a few months later I had a rebuilt transmission installed because the front pump failed when the tourque converter failed. My lesson learned here, I will try to not buy a car with an automatic next time.

I think that every 30K might be overkill if you are using synthetic atf and do mostly highway driving/no towing minimum stop-n-go. I am tempted to push it to 50-60K. RT

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When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K

30K on Mobil 1 ATF

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82 300SD
93 F250 4x4

About every 20k on dino Valvoline ATF. I drive the car hard so I change the tranny fluid a little sooner.

Not enough options on the poll. Mine is a "sealed for life" unit that is supposed to never need service. I'm having the fluid changed every 60K.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

Every 30K using Agip Dexron III/Mercon

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Regards,
Aaron

Every 15K with dino ATF. That includes filter change and draining the torque converter.