McLaren Engine Faults FAQ

1. What are some common engine faults reported in McLaren road cars?

McLaren road cars, while renowned for their high-performance engines, have experienced some recurring issues over the years. Common faults include concerns related to the cooling system, electronic glitches, and software-related issues. Some models have also faced challenges such as overheating and engine misfires, which can be caused by mechanical failure.

2. Which McLaren models have been more prone to engine faults?

The MP4-12C faced teething problems related to electronic glitches and software, and the M840T engine in the 720S had occasional reports of overheating and misfires. It’s important to note that McLaren actively addresses these issues through software updates and continuous improvement. Early version of the M838T also suffered from valve train wear, although this was address on latter engines, but it still affects these earlier versions. Both engine versions have suffered from cylinder liner issues and even con rod failure.

3. How has McLaren addressed engine faults in their road cars?

McLaren has been committed to providing excellent customer support, and the brand has been proactive in addressing reported engine faults. When issues arise, McLaren’s engineering team worked swiftly to release software updates, implement improvements in subsequent models, and offer solutions to affected owners. Unfortunately the dealer network have not been the most reliable at delivering the customer service that the manufacture might have hoped for.

Regular maintenance and adherence to service schedules can also play a crucial role in preventing potential issues. Here at SBR we are able to offer the same software updates if needed, with our factory diagnostics.

4. Are engine faults covered under warranty for McLaren road cars?

McLaren provides a comprehensive warranty for their road cars, typically covering the engine and associated components. However, the specific terms and coverage may vary depending on the model and the region. It’s essential for McLaren owners to familiarise themselves with the warranty terms and conditions provided by the manufacturer, as fixing faults not covered under said warranties can be expensive. SBR are able to offer warranty for McLaren models after a full inspection of the vehicle.

5. Can engine faults be prevented through regular maintenance?

Regular and proactive maintenance is crucial in helping prevent potential engine faults. Adhering to scheduled service intervals, conducting routine check-ups, and promptly addressing any warning lights or unusual sounds can significantly contribute to the overall health and longevity of the McLaren engine. However, we are still seeing excessive wear on older cars, even with faultless service history!