Seat Leon 1.9 Sdi 68
Engine Remapping in Cardiff
Seat Leon 1.9 Sdi 68 in Cardiff. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Seat Leon 1.9 Sdi 68: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+15 bhp · +22%- Standard68 bhp
- Remapped83 bhp
Torque
+32 Nm · +24%- Standard133 Nm
- Remapped165 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
Out of the box the Seat Leon 1.9 Sdi 68 gives 68 bhp and 133 Nm. Remapped in Cardiff, we record 83 bhp and 165 Nm, so 15 bhp and 32 Nm more, or 22% and 24% respectively.
These are indicative figures for a diesel Seat Leon in good health. Your own results depend on the condition of the car.
Seat Leon 1.9 Sdi 68 power and torque after remapping
- Fuel: Diesel
- Standard power: 68 bhp, remapped: 83 bhp (+15 bhp, +22%)
- Standard torque: 133 Nm, remapped: 165 Nm (+32 Nm, +24%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Seat Leon: what changes with a remap
Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.
How the Seat Leon 1.9 Sdi 68 compares
Of the 8 diesel Leon engines in our data, this one comes 8th for power gain, which is 19 bhp below the Leon diesel average of 34 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 15 bhp and 32 Nm sits below that benchmark.
Seat Leon engine tuning in Cardiff
Remap Experts has a dedicated Cardiff site, so you deal with a local team backed by a national network. We regularly work with drivers in Pentyrch, Rumney, Riverside, Rhiwbina and Llandaff and nearby areas of Wales.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Gwent, Bristol and Midwales, those neighbouring Remap Experts sites can help too.

Ready for engine remapping on your Seat Leon in Cardiff?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Seat Leon
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other Leon engines
- Seat Leon 1.4 TSI 125 (+2005)petrol
- Seat Leon 1.4i 16v 85 (+2005)petrol
- Seat Leon 1.6 102 (+2005)petrol
- Seat Leon 1.6 I 16v 105petrol
- Seat Leon 1.8 20v 125petrol
- Seat Leon 1.8 T 180petrol
- Seat Leon 1.8 T 20v 225petrol
- Seat Leon 1.8 T Cupra R 20v 210petrol
- Seat Leon 1.8 TSI 160 (+2005)petrol
- Seat Leon 2.0 FSI 150 (+2005)petrol
- Seat Leon 2.0 TFSI 185 (+2005)petrol
- Seat Leon 2.0 TFSI 200 (+2005)petrol
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide