Hi everyone. Couldn't help it, bought another old diesel Benz recently. The car is a 1997 C250 Turbodiesel that has done 370k km. Shifting from 2nd to 3rd is quite notchy and makes the bad flex disc clunk quite hard (still have to replace that). I think i have a worn 3rd synchro ring since all other gears are smooth, which eliminates any clutch issue. If i want the shift to be smooth, i have to either wait a bit in neutral or double clutch.
These manual trannies are supposed to take ATF up to around july of 97. At that point they switched to GL4 oil. There's a MB paper stating that earlier transmissions can be switched to the newer oil.
The oil i drained was not ATF and it looked like liquid metal. I refilled with Dexron III, there was a slight improvement but 3rd was still unpleasant. I've just replaced it again with some Total semi synthetic 75W80, seems a little bit better but haven't driven the car long enough.
My options are:
- Try other oils (synthetic vs dino, redline, amsoil etc)
- Try an additive
- Live with it and learn to drive it smoothly
- Transmission rebuild (not going to happen)
What would you do/try? I'm thinking about sticking to something in the 7.5-9cSt range. Please refrain from posting variations of "use ATF because that's what MB blablabla".
These manual trannies are supposed to take ATF up to around july of 97. At that point they switched to GL4 oil. There's a MB paper stating that earlier transmissions can be switched to the newer oil.
The oil i drained was not ATF and it looked like liquid metal. I refilled with Dexron III, there was a slight improvement but 3rd was still unpleasant. I've just replaced it again with some Total semi synthetic 75W80, seems a little bit better but haven't driven the car long enough.
My options are:
- Try other oils (synthetic vs dino, redline, amsoil etc)
- Try an additive
- Live with it and learn to drive it smoothly
- Transmission rebuild (not going to happen)
What would you do/try? I'm thinking about sticking to something in the 7.5-9cSt range. Please refrain from posting variations of "use ATF because that's what MB blablabla".