This week at Kernowsport, we had the pleasure of tuning not one, but two BMW 1 Series Convertibles — both receiving our popular Stage 1 performance remap.
The second of the two was this stylish BMW 118D Convertible located in Porthleven, just three doors down from a recent AdBlue delete we carried out for a local tradesman. We seem to be spending quite a bit of time in Porthleven lately — and we’re not complaining! It’s always a good excuse to stop by Origin Coffee, one of our favourite Cornish coffee roasters.
⚙️ Stage 1 Remap Results – More Power, More Driveability
The BMW 118D already offers a solid balance of performance and efficiency, but our Stage 1 remap took things to the next level.
After calibration, this 2.0-litre diesel was pushing over 180BHP, transforming the driving experience with noticeably improved throttle response, torque delivery, and smoothness.
It’s amazing what a well-optimised ECU can do. The owner was thrilled with the extra punch and how much more responsive the car felt, especially on Cornwall’s hilly coastal roads.
Learn more about our ECU Remapping Services in Cornwall to discover what’s possible for your own vehicle.
⚠️ DPF Warning Detected – A Useful Reminder
During the job, our OBD diagnostics tool picked up a blocked DPF (Diesel Particulate Filter). While the vehicle was still running fine, this is a great reminder that a performance remap increases exhaust flow and can quickly expose existing DPF restrictions.
That’s why we always perform a pre-tune diagnostic check — not only to make sure your car is in good health, but to spot any issues early. In this case, the customer was pleased to know about the DPF issue and can now plan a DPF clean or delete before it becomes a bigger problem.
At Kernowsport, we believe forewarned is forearmed — it’s all about responsible tuning and keeping your engine performing at its best.
☕ A Day Well Spent in Porthleven
Between helping local drivers, solving AdBlue issues, and boosting performance across Cornwall, days like this remind us why we love what we do. The stunning coastal views, friendly customers, and yes — great coffee — make it all worthwhile.
If you’re based in Porthleven, Helston, or anywhere across West Cornwall, and you’d like to unlock more power from your BMW, get in touch with Kernowsport today.
We offer mobile tuning, diagnostics, and performance upgrades right at your doorstep.
🔗 Related Kernowsport Services
At Kernowsport, we offer a full range of mobile vehicle tuning and diagnostic services across Cornwall, including Hayle, Helston, Redruth, Porthleven, and Penzance.
Explore our most popular services below:
- ⚙️ ECU Remapping Cornwall
- 💨 Performance Tuning
- 💧 AdBlue Delete & Repair
- 🧴 DPF Cleaning & DPF Delete
- 🔧 EGR Delete
- 🔍 Vehicle Diagnostics
- 🚐 Mobile Mechanic Cornwall
If you’re looking to improve your BMW’s performance or resolve DPF/AdBlue issues, contact Kernowsport today — Cornwall’s trusted specialists in mobile tuning and ECU solutions.
📞 Get in touch to book your next service.













