R50 Manual Transmission Fluid Question
Looking for specific tech info...
My 2005 R50 is a manual tranny with 120K miles
- for convenience, used a CAR-X shop to do an oil change. While there, they suggested I change the manual Transmission fluid and I agreed. They stated they knew it had 'a special type' of fluid, which they claimed to have used.
-1 month later, started hearing a strange metallic sound. Took it to my regular shop where they found the manual transmission fluid looking like silver metallic paint = full of metallic bits. Ultimately, I needed a new 5-speed transmission.
- That shop sent a sample of the extracted fluid + a new sample of BMW MTL-LF-3 to a chemical lab for analysis. RESULT= 2 different fluids. Thus CAR-X had used the incorrect fluid.
- CAR-X and Liberty Mutual, their insurance carrier, have determined that they are not responsible, stating there is no way to prove the wrong fluid caused the transmission failure.
- I know it could have failed, even with the proper fluid, but feel it is reasonable to believe it is the cause since there was no problem with the extracted fluid when CAR-X did the fluid change, and the issue occurred after the wrong fluid was used.
- FWIW: The car still has the original clutch, so I find it hard to believe a tranny would go before the clutch if I was driving the car hard.
** does anyone have any BMW/MINI documentation on why that OEM fluid is required and what would happen if a lesser fluid was used?
Thanks in advance...
(please avoid the CAR-X in Blue Ash, OH)