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Have a question about chiptuning, a topic you would like covered, or a correction to suggest? We would like to hear from you.

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The easiest way to reach us is to leave a comment under any article on this blog. Comments are read regularly, and we aim to reply within a few days. If your question is about a specific topic, please comment on the article that is closest to it, so other readers can benefit from the answer too.

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  • We cannot diagnose faults or give tuning quotes for individual cars.
  • For a specific remap, please speak to a reputable local tuner.
  • Please include your car model and engine if you are asking about a specific vehicle.

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Chiptuning the Mercedes A45 AMG: What You Can Gain and What to Watch Out For

Key takeaways The A45 AMG is already very powerful, so a remap adds performance but also stress. Gains depend on the exact engine, fuel quality and supporting hardware. Choose a specialist with real experience of AMG engines and ask about their guarantee. Think about warranty, insurance and reliability before you tune.  The Mercedes A45 AMG is already one of the most powerful compact hot hatches ever built, and its 2.0 litre turbo engine is a favourite among tuners. A remap can make it feel even more aggressive, but this engine runs close to its limits from the factory, so the details matter. The cars in short First generation (2013 to 2018): a 2.0 litre turbo four cylinder with all wheel drive (4MATIC) and a dual clutch gearbox. Output was around 360 hp at launch and around 380 hp after the 2015 update. Second generation (A45 and A45 S): a newer 2.0 litre turbo engine, with roughly 390 hp in the A45 and around 420 hp in the A45 S. Figures can vary by market and model year,...
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Is Chiptuning Legal? Insurance, Inspection and Emissions Explained

Key takeaways Chiptuning is not illegal in itself, but the car must stay compliant with local rules. Emissions equipment such as the DPF, EGR and AdBlue system must stay in place and working. Tell your insurer about the change, or a claim could be reduced or refused. Rules differ by country, so check with your inspection centre before tuning. Many drivers assume that a remap is just a software update and therefore nobody needs to know about it. In reality, changing how an engine performs can have legal, insurance and inspection consequences. This guide explains the main points, using the European situation as a general reference. Rules vary from country to country, so treat this as an overview and not as legal advice. Is chiptuning legal? Modifying a car is not illegal in itself, but the vehicle has to remain compliant with the rules that apply to it. Cars are approved with a specific power output and emissions level, and in many countries a change that affects either of them has to be...
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Will Chiptuning Void My Warranty? What Every Owner Should Know

Key takeaways A remap does not automatically cancel your warranty, but cover can be refused for related faults. A remap can sometimes be detected, even if the original software is restored. A tuner guarantee is not the same as the manufacturer warranty. Ask the right questions before you tune and keep all paperwork. If your car is still under warranty, the first question about chiptuning is almost always the same: will I lose my cover? The honest answer is that it depends, and it is better to understand the risks before you book a remap than after something goes wrong. What a warranty actually covers A manufacturer warranty covers defects in materials and workmanship. It does not usually cover damage caused by modifications. If a modified engine or gearbox fails, the manufacturer may ask whether the tune could have contributed, and it can refuse the claim if it believes that it did. Can a remap be detected? Many tunes leave traces in the engine software, and a dealer can often tell tha...
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