Is there a persistent warning light on your dashboard? Is your vehicle underperforming or "limping" home? Modern vehicles are equipped with dozens of sensors and complex electronic control units (ECUs) that require more than just a basic code reader to understand.

​At Fleet Services Stafford, we provide OE Level (Original Equipment)  diagnostics to pinpoint faults accurately, saving you time and money on unnecessary part replacements.

​Our Diagnostic Capabilities

​We don't just read codes; we interpret data. Our technicians use industry-leading equipment (including Snap-on and manufacturer-specific tools) to dive deep into your vehicle’s systems:

• ​Engine Management: Diagnostics for "Check Engine" lights, fuel injection issues, and sensor failures.
• ​DPF & Emissions: Specialized testing for Diesel Particulate Filters, EGR valves, and AdBlue systems to keep your fleet Euro 6 compliant.
• ​Safety Systems: Complete health checks and resets for ABS (Braking), SRS (Airbags), and Traction Control.
• ​Transmission & Gearbox: Diagnosis of automatic and manual shifting faults or electronic clutch issues.
• ​Battery & Alternator: Advanced electrical testing to find the source of "parasitic drains" that kill your battery overnight.