The BMW N46 was an inline four-cylinder petrol engine that was available from 2004 to 2012. The N46 replaced BMW’s N42 engine, though changes were relatively minor. The N46 engine had an aluminium alloy block and cylinder head, two gear-driven balance shafts, double overhead camshafts (chain-driven), variable intake and exhaust valve timing (BMW’s double VANOS), […]
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