SEAT Leon (1P) 2005-2012 1.6 TDI CR 103bhp remap figures
The SEAT Leon 1.6 TDI CR 103bhp (2005-2012) is a diesel 1.6L model making 103bhp and 250Nm as standard. After a Stage 1 ECU remap we expect 155bhp and 324Nm - up to 52bhp and 74Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 103 bhp | 155 bhp | +52 bhp |
| Torque | 250 Nm | 324 Nm | +74 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 103 bhp | 250 Nm | |
| Stage 1Maximum software-only performance | 155 bhp | 324 Nm | +52 bhp +74 Nm |
| Stage 1 EcoPerformance with economy in mind | 142 bhp | 318 Nm | +39 bhp +68 Nm |
| Eco mapEconomy first | 138 bhp | 314 Nm | +35 bhp +64 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your Leon
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
This car is listed with a Siemens Simos PCR2.1 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the SEAT Leon 1.6 TDI CR 103bhp?
We expect 155bhp and 324Nm against 103bhp and 250Nm as standard: up to +52bhp and +74Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the SEAT Leon 1.6 TDI CR 103bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 142bhp and 318Nm expected. The Eco map is economy first: 138bhp and 314Nm. Both still sit above the standard 103bhp and 250Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More SEAT Leon figures
Other diesel variants
- 1.9 TDI PD 103bhp 2005-2012
- 2.0 TDI PD 138bhp 2005-2012
- 2.0 TDI PD 167bhp 2005-2012
- 2.0 TDI CR 170bhp 2009-2012
All diesel Leon (1P) variants · Leon (1P) 2005-2012 overview · All SEAT figures