Bmw n20 timing chain replacement cost: BMW N20 and N26 Engine Lawsuit Blames Timing Chains

According to the plaintiffs, the owner's manuals don't contain requirements to inspect or maintain the primary and secondary chain assemblies even though the manuals include maintenance schedules for the vehicles up to 150,000 miles. The lawsuit alleges this indicates BMW didn't expect the timing chain problems or the engines that prematurely fail.