BMW 335i xDrive powertrain malfunction warning due to valve timing sprocket and solenoid replacement costing over 3500 on BMW 335i xDrive

Some BMW 335i xDrive owners report experiencing significant costs related to powertrain malfunction warnings, often exceeding $3,500 due to valve timing sprocket and solenoid issues. This warning light typically indicates problems with the transmission, differential, or propshaft. Common causes of drivetrain malfunctions reported include worn spark plugs, ignition coil failures, fuel pump malfunctions, and catalytic converter issues. Additionally, the average cost for a Powertrain Control Module replacement can range from $2,155 to $2,195, with parts alone costing between $2,000 and $2,000, and labor costs from $154 to $195. Some owners have found success in resetting the drivetrain malfunction warning themselves by disconnecting the battery or using an OBD-II scanner to clear error codes. Furthermore, many owners benefit from warranty coverage, as drivetrain malfunctions are typically covered under the BMW powertrain warranty within the 4-year/50,000-mile period, although exclusions may apply for fuel system or wiring problems. Promptly addressing these issues is crucial for effective repairs and maintenance.