Precision. Power.
Personalised.
Expert Engine Rebuilds | Advanced Mercedes Coding | Bespoke Customisations
Explore Our Services
What We Do at Grand Line Motors
At Grand Line Motors, we’re more than just a garage — we’re your vehicle’s elite tech and performance partner. Specializing in high-performance engine work and advanced coding for premium vehicles, we bring cutting-edge automotive technology to your doorstep.
Whether you're seeking custom software tweaks or want to unlock your car’s true potential, our team of Mercedes Benz Coding Experts and engine specialists are here to deliver excellence.
Engine Specialists
From diagnostics to complete rebuilds, we know engines inside out — especially high-performance powertrains.
Mercedes Benz Coding
We offer expert Mercedes-Benz coding services, including Apple CarPlay activation, ambient light upgrades, and AMG features..
Customisations
Tailored upgrades, performance tuning, and personalized enhancements that make your ride truly unique.
Featured collection
Mercedes-Benz Coding Selection
Active Brake Assist
AdBlue Reset
Airbag Malfunction
AMG Car Design
AMG Menu Activation
AMG Track Pace
Why Code Your Mercedes with Grand Line Motors?
Modern Mercedes vehicles are packed with hidden features that dealers never activate. At Grand Line Motors, we unlock those capabilities — giving you more tech, more comfort, and more performance, with zero compromises.
🔧 Specialist Knowledge
We work exclusively with German performance vehicles. That means safe, reliable coding backed by real experience — no trial and error.
🎯 OEM-Quality Results
Every feature is unlocked to feel like it came from the factory — with no warning lights, software glitches, or compatibility issues.
⚡ Fast, Clean, Hassle-Free
Most coding sessions are done in under 30 minutes. No panels removed, no mess left behind — just results that work immediately.
🎛️ Personalised Experience
Choose the features that matter most to you — from AMG menu activation to comfort lighting, your vehicle is coded your way.
🔓 No dealer visits. No overpriced subscriptions. Just your Mercedes — upgraded.
"I can't recommend Grand Line Motors enough! The team worked wonders on my car, optimizing its performance and coding it for features I didn’t even know were possible. Their attention to detail is unmatched, and the results are incredible. My car feels like new!"
— Mark
"If you're looking for experts who really know their stuff, Grand Line Motors is the place. They’ve tuned my A Class to perfection, and the personalized service made all the difference. I’ll definitely be bringing my car back for any future upgrades!"
— Sophie L.
"I had my Mercedes coded and customized by Grand Line Motors, and the experience was outstanding. The team was professional, and the results were exactly what I wanted. My car now drives smoother and has more features than ever before. Worth every penny!"
— Mo., Mercedes Owner