JLR Ingenium Engine

Numerous design issues plague this engine, with frequent total engine failures. We have purchased Ingenium engine cars with under 50,000 miles, and cars which have adhered strictly to JLR’s servicing intervals. So, what goes wrong with these engines?

Faulty Timing Chain: One of the most concerning problems is the timing chain. This critical component keeps your engine in sync and ensures vital parts work together. Unlike some timing belts that need replacement, timing chains are designed to last the lifetime of the vehicle. Unfortunately, Ingenium’s timing chain and system are simply not strong enough. It’s common for the timing chain to rattle and stretch or snap entirely, causing catastrophic engine damage and complete engine failure.

It’s worth noting that in 2019, JLR did upgrade the timing chain to a thicker and stronger unit, acknowledging the shortcomings of the original design. However, this doesn’t help owners of earlier models (2015-2019) who are left with potentially faulty timing chains.

DPF Issues & Oil Dilution: The Diesel Particulate Filter (DPF) plays a crucial role in reducing soot emissions. Ideally, the DPF reaches high temperatures during operation to burn off built-up soot through a process called regeneration. However, the Ingenium engine, particularly in transversely mounted engines like the Discovery Sport, struggles to get the DPF hot enough for proper regeneration. This can lead to excessive fuel injection during regeneration attempts.

With the faulty regeneration process, unburnt fuel ends up in the engine oil, diluting it. This diluted oil loses its lubricating properties, putting the engine and turbocharger at risk of further damage.

Turbocharger Faults: Jaguar and Land Rover turbo failure is another frequent issue we witness. This can be caused by oil starvation due to timing chain problems or oil dilution. There have also been reports of questionable quality with the turbos themselves, leading to independent failures.

Long Service Intervals: JLR’s recommended service interval for the Ingenium engine is a lengthy 21,000 miles or 2 years. While modern oil technology has improved, frequent oil changes (every 6,000-10,000 miles or annually) are vital for maintaining engine health. JLR’s extended service interval can exacerbate the existing issues within the Ingenium engine, especially considering oil degradation over time.