Client
MAHLE Powertrain
Case Study · Website Design · UX/UI · Development · One-Time SEO
How The Brand Bee redesigned and rebuilt MAHLE Powertrain's website - from wireframe to a fast, responsive, engineering-grade experience - with a one-time SEO foundation built to be found.
MAHLE Powertrain is the technology-agnostic engineering services arm of the MAHLE Group - two decades of powertrain innovation across combustion, hybrid, hydrogen and battery-electric systems, with technical centres in the UK, Germany and China.
Its engineering set the standard. Its website didn't. The existing site was hard to navigate, slow on mobile, and buried a deep portfolio of capabilities under a dated structure. Prospective OEMs, start-ups and partners couldn't quickly grasp what MAHLE Powertrain does - and search engines struggled to read it.
The brief to The Brand Bee: design and build a modern, fast, engineering-grade website that makes a vast capability set easy to navigate - and lay a clean one-time SEO foundation so the right buyers can find it.
A precision engineering brand deserves a site that behaves like precision engineering.
A deep, technical portfolio - capabilities, IC engines, electric propulsion, transmissions - with no clear path through it.
Slow load times and weak mobile responsiveness on a site representing a precision engineering brand.
Thin technical SEO and an unstructured architecture that limited organic visibility for high-intent terms.
A dated experience that undersold two decades of powertrain innovation to OEMs and partners.
We treated the site as a system to be engineered - structured, tested and optimised. Discovery and information architecture first, then wireframes, then a precise visual design built on MAHLE's identity, a fast responsive build, and a one-time SEO foundation baked in before launch.
Wireframes to final design - hierarchy, flow and the path to every capability agreed in low fidelity, then rendered in MAHLE's visual language.
Redesigned and rebuilt from the wireframe up into a fast, responsive, engineering-grade experience - a 92/100 Lighthouse score at launch with page loads down 58%.
View website →The rebuild turned a slow, hard-to-navigate site into a fast, engineering-grade experience - and the one-time SEO foundation made it search-ready from launch.
| Objective | Outcome |
|---|---|
| Modernise the brand online | A fast, responsive, engineering-grade site across all devices |
| Make a deep portfolio navigable | Re-architected IA - capability clusters reachable in two clicks |
| Improve discoverability (one-time SEO) | +86% organic sessions; Core Web Vitals all "good"; clean technical base |
| Convert visitors into enquiries | +63% contact & enquiry submissions post-launch |
| Reflect a global engineering leader | One consistent visual system for UK, Germany & China audiences |
The gap was never capability - it was how that capability showed up online. The rebuild closed it. A slow, dated site became a fast, intuitive one that lets buyers grasp what MAHLE Powertrain does in seconds, on any device.
Because the one-time SEO foundation was engineered in before launch, the site shipped search-ready - cleaner architecture, healthy Core Web Vitals and stronger organic visibility for the high-intent terms that matter.
The team signed off the wireframes and final design with minimal revisions, the build launched on schedule, and the site set a new standard for how the brand presents online.
A dated, hard-to-navigate site became a fast, engineering-grade web experience - clear to buyers, ready for search, and worthy of the MAHLE name.
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