BMW X5 G05 B58 Carbon Buildup: Walnut Blasting Costs vs Prevention

For many BMW X5 G05 owners between 2020 and 2025, the smooth power delivery of the B58 turbocharged inline-six engine comes with a hidden flaw: intake valve carbon buildup. Unlike older port-injected engines, the B58’s direct fuel injection system bypasses the intake valves, leaving them vulnerable to carbon deposits from blow-by gases and oil vapours. […]