Quote:
Originally Posted by robbiep
Early 525d were a de-tuned 3.0 unit - basically a 530d-lite.
Later 525d are a twin-turbo 2.0 unit - a tuned 520d.
So those will be very different in terms of smoothness, the 3.0 unit a lot quieter and a lot more linear power delivery.
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All F10 525d are 3.0L engines correct ? mines is 2010
"Early 525d were a de-tuned 3.0 unit - basically a 530d-lite." what do you mean "de-tuned", should I consider retuning for better performance and fuel economy?