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Home >> BMW >> 2011 >> 335xi 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Performance - Functional Description -- E90 >> Engine Performance - Functional Description >> Knock Control >> Notes

Knock Control: Notes

Engines with a compression ratio greater than 10.0:1 are high for a power plant was forced induction. Knock control monitors the combustion process.

The knock control features extended functionality. The DME digital engine electronics system is also capable of detecting high- intensity "super-knocking" (a type of auto-ignition).