Land Rover Defender TD4 Stage 1 Remap
On Land Rover Defender TD4 diesel engines a Stage 1 remap recalibrates the fuel quantity, injection timing, boost pressure and torque limiter maps. No hardware is changed and the original software is backed up. The same engine is sold with different stock outputs across generations, so the gain depends on your version.
It depends on the generation and the stock output. TD4 engines with 122 bhp reach 155–160 bhp with a Stage 1 remap; the largest gain is +38 bhp (TD4 122hp). Pick your version in the table below.
Land Rover Defender TD4: Stage 1 figures by generation and year
Year / chassis: 2011 - 2018
| Engine | Power | Torque | Gain |
|---|---|---|---|
| Land Rover Defender TD4 122hp | 122 → 160 bhp | 360 → 420 Nm | +38 bhp |
Year / chassis: 2007 - 2011
| Engine | Power | Torque | Gain |
|---|---|---|---|
| Land Rover Defender TD4 122hp | 122 → 155 bhp | 360 → 420 Nm | +33 bhp |
Where can this be done near you?
GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.
About the Land Rover / Jaguar 2.2 TD4 / SD4 and 2.7 / 3.0 TDV6 / SDV6
The PSA-Ford-derived 2.2 diesel (TD4 / SD4) powered the Freelander 2, Evoque and Discovery Sport; the 2.7 and 3.0 V6 diesels (TDV6 / SDV6) the Discovery 3 and 4, Range Rover Sport, Jaguar XF and S-Type. They are torque-focused, heavy-duty engines.
How a Stage 1 remap works on the Land Rover Defender TD4
Stage 1 recalibrates rail pressure, injection, boost and torque maps. The 150 hp 2.2 TD4 shares hardware with the SD4, so its gain is clear; the V6 diesels gain substantially in mid-range torque. The automatic gearbox capacity is respected.
Pre-remap checklist
- Crankshaft and oil service history on the 2.7 TDV6.
- Turbos and EGR coolers on the 3.0 SDV6.
- DPF load.
- Clutch / automatic gearbox and transfer case oil.
This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.