Kernowsport Diagnostics & Tuning – Viezu-Approved Mobile ECU Remapping Services in Hayle, Cornwall

Mercedes V-Class 250 in Wadebridge Cornwall after remap and AdBlue delete by Kernowsport

Mercedes V-Class 250 Remap & AdBlue Delete in Wadebridge Cornwall

While working on another job in Bodmin, we were stopped by the owner of an immaculate Mercedes V-Class 250 diesel who was keen to know if we could improve its performance. After a chat, we arranged to head over to Wadebridge the following day to give the V-Class the full Kernowsport treatment. Overnight, the owner had done some research on AdBlue issues and decided to tackle the problem pre-emptively. Rather than waiting for warning lights or countdowns, he asked us to perform an AdBlue delete at the same time as the performance remap, ensuring peace of mind for the future. This turned out to be a relatively straightforward job — and for once, a Mercedes was well behaved! The results were excellent: a strong performance gain over standard, smoother drivability, and no more risk of future AdBlue faults. The owner was delighted, and that’s exactly what we like to see. Why Choose Kernowsport for Mercedes Remapping in Cornwall? If you own a Mercedes V-Class, C-Class, or Sprinter, Kernowsport can help keep it running at its best with safe and reliable ECU tuning. Get Your Mercedes Remapped with Kernowsport At Kernowsport, we specialise in ECU remapping, performance tuning, and emissions fixes

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Mercedes C220 in Bodmin Cornwall after remap and AdBlue delete by Kernowsport

Mercedes C220 AdBlue Delete & Remap in Bodmin Cornwall

Our final job of the day took us to Bodmin, where we were called out to work on a Mercedes C220. This car had already had a DPF delete and EGR delete, and the owner wanted us to complete the package with an AdBlue delete and a stage one performance remap. These particular C220s can’t be tuned through the usual OBD port, but luckily the ECU is very accessible. Simply removing the plastic engine cover reveals enough space to connect directly without even having to remove the ECU from the car. The bonus of this approach is speed — while an OBD read can take up to 90 minutes, a direct ECU connection takes less than five minutes. It’s actually the quickest and safest way to remap this model. With the job complete, the Mercedes C220 left Bodmin with a permanent AdBlue solution, more power, and improved drivability. Another successful job ticked off, and then straight on to the next one! Why Mercedes Owners Choose Kernowsport in Cornwall If you own a Mercedes C-Class, E-Class, or Sprinter, Kernowsport can deliver reliable AdBlue fixes and performance remapping across Cornwall. Need Help with Mercedes ECU Tuning in Cornwall? At Kernowsport, we specialise

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Kernowsport ECU bench-level AdBlue fix on Hyundai Santa Fe in Cornwall

Hyundai Santa Fe AdBlue Fix in Mawla near Portreath Cornwall

We’ve lost count of how many holidaymakers this year have called us with an AdBlue countdown warning on their vehicles. These issues often leave drivers with too few miles left to get home before the car enters no-start mode. Joyce from Essex rang us one evening with exactly this problem on her Hyundai Santa Fe. To make matters worse, she still had a whole week of driving planned in Cornwall before heading back home, so the issue needed resolving straight away. The following morning, we travelled to her holiday home in Mawla near Portreath. As usual for Cornwall, there was no phone signal — but thankfully our Starlink satellite internet on the Kernowsport van kept us connected so we could get the job done. This turned out to be a bench-level job, but we were able to carry it out without removing the ECU from the vehicle. Once complete, the AdBlue fault was permanently resolved, giving Joyce and her husband the peace of mind to enjoy their holiday without worrying about countdowns or breakdowns. If you’re having similar issues, check out our AdBlue Delete Services to learn how we can help. Why Holidaymakers Choose Kernowsport for AdBlue Fixes in Cornwall If you’re

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VW Caddy Mk5 in Hayle Cornwall tuned by Kernowsport with 200BHP remap

VW Caddy 2K Remap in Hayle Cornwall

This VW Caddy Mk4 2K 2.0 in Hayle is one of our own vehicles and will soon become our next mobile mapping van. At Kernowsport, we’ve always loved working on VWs — they’re straightforward to tune, reliable, and always deliver impressive performance gains. Our Caddy started life as the 102BHP model, but after applying a Kernowsport ECU remap, it now produces a very healthy 200BHP. That makes it one of the quickest mapping vans in Cornwall, and we can’t wait to put it through its paces around the county. This is actually the second VW Caddy in our fleet, and we’ve got plans for a few tasteful modifications to make it stand out on Cornwall’s roads. If you see us out and about, don’t be shy — stop and say hello! Why We Love VW Vans at Kernowsport If you own a VW Caddy, Transporter, or Amarok, Kernowsport can unlock its full potential with a safe and reliable ECU remap. Get Your VW Remapped with Kernowsport At Kernowsport, we specialise in ECU remapping, performance tuning, and emissions solutions for cars, vans, and commercial vehicles across Cornwall. Whether it’s a VW Caddy, Transporter, or Amarok, we’ll help unlock more power, torque,

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Nissan 350Z in Penzance Cornwall after ECU remap by Kernowsport

Nissan 350Z ECU Remap in Penzance Cornwall

This job was a little different from our usual day-to-day work. It’s not every day we get to work on an old-school sports car, but this 2002 Nissan 350Z in Penzance was a real treat. Although it’s now 25 years old, it still feels modern in many ways — though not the most comfortable, it remains an absolute beast to drive, with a roar that makes you smile every time it starts up. Normally aspirated engines like this don’t always respond dramatically to a tune, but with our Kernowsport ECU remap, we were able to improve both power and drivability. The owner was delighted with how much smoother and more responsive it felt, proving that even older performance cars can still benefit from modern tuning techniques. At Kernowsport, we love variety. From high-mileage work vans to modern diesels and even classic sports cars like this 350Z, our goal is always the same — to make vehicles perform at their best and keep their owners happy. If you have something a bit unusual, old, or interesting, we’d love to see it! Unlock Performance with Kernowsport At Kernowsport, we specialise in ECU remapping, performance tuning, and fault fixes for cars, vans, and

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Peugeot 3008 with start-stop error fixed at Pads Performance in Pool Cornwall by Kernowsport

Peugeot 3008 Start-Stop Error Fix in Pool, Redruth

This job was carried out at our colleagues Pads Performance in Pool near Redruth, where one of their customers was experiencing a start-stop error on their Peugeot 3008. Unusually, the fault was also triggering an engine management light, making it even more frustrating for the owner from Camborne. In many vehicles, start-stop issues can be resolved simply by switching off the function or clearing codes with an OBD reader. However, this particular Peugeot 3008 required the start-stop system to be permanently disabled in the ECU, which meant mapping it out with our specialist tuning tools. Fortunately, the job was straightforward and quick, resulting in the start-stop function safely disabled and the engine management light cleared. Another happy customer, and another example of how Kernowsport works closely with trusted partners like Pads Performance to deliver fast, reliable ECU solutions across Cornwall. Why Choose Kernowsport for ECU Fixes in Cornwall? If your car is suffering from a start-stop error, AdBlue countdown, or persistent engine management light, Kernowsport has the tools and experience to resolve it quickly. Need Help with ECU or Start-Stop Issues in Cornwall? At Kernowsport, we’re experts in diagnosing and fixing ECU, start-stop, AdBlue, DPF, and EGR problems for cars,

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Hyundai iLoad van in Helston Cornwall after performance ECU remap by Kernowsport

Hyundai iLoad Performance Remap in Helston Cornwall

Our second job of the morning was a quick and effective one in Helston, where we worked on a Hyundai iLoad van. Many van owners across Cornwall come to us looking for a little more power — especially when tackling steep Cornish hills — and this iLoad was no exception. From the factory, the Hyundai iLoad puts out 114BHP, which can feel a little underpowered when fully loaded. With a Kernowsport performance remap, we safely lifted it to a much more capable 167BHP. The extra torque and responsiveness will make driving around Helston, Falmouth, and the surrounding Cornish countryside far more enjoyable. Helston isn’t known for being the flattest of places, but with its new performance upgrade, this van should have no trouble at all dealing with Cornwall’s hills. Another happy customer, and another workhorse van ready for reliable service. Why Choose Kernowsport for Van Remapping in Cornwall? If your van feels underpowered or struggles on Cornwall’s hills, Kernowsport can transform the way it drives. Boost Your Van’s Performance with Kernowsport At Kernowsport, we specialise in ECU remapping, performance tuning, and emissions solutions for cars, vans, and commercial vehicles across Cornwall. Whether it’s a Hyundai iLoad, VW Transporter, Ford Transit,

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Audi A4 Avant in St Ives Cornwall after AdBlue delete by Kernowsport

Audi A4 Avant AdBlue Fix in St Ives Cornwall

This job in St Ives was for a local customer who was preparing to sell his Audi A4 Avant when the dreaded AdBlue warnings appeared on the dash. At first, the owner asked us to reset the system in the hope that it would stay clear, but within just 24 hours the warnings returned. Unfortunately, once these AdBlue systems start to go wrong, they tend to continue getting worse. We returned the next day and carried out a full AdBlue delete via the ECU, mapping out the system permanently. While we were there, we also performed a full health check on the Audi to ensure it was in top condition. Happily, this one turned out to be a very clean, well-maintained vehicle — now AdBlue-free and ready to give its next owner many years of reliable service. If you’re having similar issues, check out our AdBlue Delete Services to learn how we can help. Why Choose Kernowsport for AdBlue Fixes in Cornwall? If your Audi A4 Avant or any other modern diesel is showing AdBlue warnings, Kernowsport can resolve the issue quickly and permanently. Need Help with AdBlue Problems in Cornwall? At Kernowsport, we specialise in fixing AdBlue, DPF, and ECU issues

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BMW 118 petrol turbo remap in Angarrack Cornwall by Kernowsport

BMW 118 Petrol Remap in Angarrack Cornwall

One of our weekend jobs this week — and our 50th job of the month — was this tidy BMW 118 in Angarrack. This little 3-cylinder petrol turbo came to us for a performance boost, and we were more than happy to help. BMWs can be a little hit and miss around the 2020 model year, as that’s when manufacturers started introducing locked ECUs. These can’t always be tuned through the standard diagnostic (OBD) port. In this case, we had to carry out a bench remap, which involves physically connecting to the ECU to read and write data safely. Once complete, we applied a stage one performance remap, and the results were impressive. The owner, Courtney, was delighted with the noticeable increase in power and sharper throttle response — exactly what you want from a modern BMW hatchback. At Kernowsport, we love the variety of vehicles we see — from high-mileage vans and campers to modern petrol performance cars like this. No two jobs are the same, and we’re always ready to adapt our tools and techniques to get the job done right. Why Choose Kernowsport for BMW Remapping in Cornwall? If you own a BMW 1 Series, 3 Series,

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VW Crafter camper van driving in Cornwall after AdBlue fix and remap by Kernowsport

VW Crafter Camper AdBlue Fix in Padstow & Hayle

Job number two today was another holiday rescue, this time for a family staying in Padstow with their 2020 VW Crafter camper van. Unfortunately, just as they were preparing to return home to Manchester, the dreaded AdBlue countdown appeared with only 85 miles remaining before no-start mode. That left them unable to risk the long drive home, so they gave us a call. We agreed to squeeze them in last minute on a Saturday afternoon and arranged to meet at McDonald’s in Hayle, where the kids could stay entertained while we got to work. Luckily, we had time to set up before they arrived, and this one turned out to be a quick job, taking less than an hour. While fixing the AdBlue issue, we also applied a stage one performance remap to the Crafter, giving it extra pulling power and smoother performance. By the time we were done, the family were safely back on the road, ready to head home to Manchester without any more AdBlue worries. If you’re having similar issues, check out our AdBlue Delete Services to learn how we can help. Why Choose Kernowsport for Campervan AdBlue Fixes in Cornwall? If your VW Crafter or campervan shows AdBlue

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Kernowsport technician performing AdBlue fix on Citroën C4 Cactus in Cornwall

Citroën C4 Cactus AdBlue Fix in Perran-ar-worthal

The first job of the day took us to Perran-ar-worthal, between Falmouth and Truro, where a 2016 Citroën C4 Cactus was showing the dreaded AdBlue countdown. We’ve worked on quite a few Citroën models recently — including the C4 Picasso, Grand Picasso, and C4 Cactus — and one thing that always amuses us is how the OBD ports are still positioned for left-hand drive cars. They’re on what would have been the driver’s side in France, which always makes us smile when plugging in our tools. After connecting diagnostics and applying the right fix, we were able to clear the AdBlue problem and get Marco’s car back to normal. Over a quick chat, we also shared our mutual love of good coffee — and Marco even left with a few of our personal recommendations for a new grinder! Another AdBlue issue resolved, another happy Kernowsport customer, and plenty more miles ahead for the C4 Cactus. If you’re having similar issues, check out our AdBlue Delete Services to learn how we can help. Why Choose Kernowsport for AdBlue Fixes in Cornwall? If your Citroën or any other diesel is showing AdBlue warnings, don’t wait until it hits a no-start countdown — let Kernowsport

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Remapped Dacia Sandero driving in Cornwall after Kernowsport performance tune

Dacia Sandero Performance Remap in Camborne

The last job of the day took us back to our hometown of Camborne, in the Pengageon area, to work on a tidy Dacia Sandero. Despite having only 17,000 miles on the clock, its owner Andy wanted a little more out of the small but surprisingly lively 900cc engine. From the factory, the Sandero produces 88BHP, but with a Kernowsport performance remap, we safely lifted it to 112BHP. While the number itself may not sound huge, the difference in everyday driving was noticeable — better pulling power up Cornwall’s hills and much easier overtaking. Exactly what Andy had hoped for. One of the things we love most about our work is the variety of vehicles we tune. One day it might be a Range Rover 4.4 with 400BHP, the next day an 800cc Sandero. No two days are the same, and we never quite know what we’ll be working on next. Why Choose Kernowsport for ECU Remapping in Cornwall? If you want your car to feel stronger, smoother, and more responsive, Kernowsport can deliver a performance remap tailored to your needs. Unlock Your Car’s Potential with Kernowsport At Kernowsport, we specialise in ECU remapping, performance tuning, and fault fixes for

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