75w-85 gear fluid meeting Mercedes specification 235.7. Used in the following places:
- W164/X164/W251 Front and Rear Differentials
- X204 (GLK) Front and Rear Differentials
- W212 Rear Differential Only
NOT FOR LOCKING DIFFERENTIALS. We are unaware of any CDI/BlueTEC models that were available with a locking rear differential, so if your BlueTEC matches the list above this fluid should be correct.