BMW F30/F31 automatic transmission oil change
320i320d330e
F30 when should the ZF automatic transmission oil be changed?
The manufacturer describes the oil as lifetime fill, but ZF recommends changing it about every 80–120 tkm (thousand km). In practice the change should be done at the latest around 100 tkm.
Should the F31 automatic transmission be flushed during an oil change?
Opinions are divided. There is a fear that flushing clogs valves, but on the other hand it removes accumulated dirt. If you are considering the change, ask the workshop how they do it.
What oil is used in the F30 330e transmission?
ZF's own oil is used in the transmission, and ZF's change recommendation is 80–100 tkm (thousand km). In the 330e with the B48 engine, changing the engine oil halfway through the service interval is also recommended.
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