As the name suggests, the Td5 uses a rather uncommon 5 cylinder layout and replaced the ageing 300Tdi 4 cylinder. Power went from 111BHP in the old engine up to 136BHP on Discovery 2 models but what was more impressive was the 221 LBS-FT of torque affording both the Defender and Disco 2 tremendous pulling power.
Further upgrades from earlier engines included electronic fuel injection and engine management systems, adding some complexity but also helping to increase overall refinement.
Whilst it is reliable overall, there are a few areas on the Td5 which can cause concern. K Motors have been working on Td5 Defenders and Discovery 2s for decades now and are aware of all problem points with this engine.
Here is a list of some of the more common Td5 engine problems along with symptoms and average repair costs.