Car Diagnostics
Manufacturer-Level Diagnostics — JLR SDD · BMW ISTA · Mercedes Star · Audi ODIS
Modern vehicles contain dozens of electronic control units communicating across complex CAN bus and Ethernet networks. When something goes wrong, a dashboard warning light is often your first indication — but the light alone doesn't tell you the full story. At JLR Autocare, we invest in the same manufacturer-level diagnostic platforms used by main dealers — including JLR SDD/Pathfinder, BMW ISTA, Mercedes Star Diagnostic, and Audi/VW ODIS — giving us complete access to every system in your vehicle. This means accurate diagnosis first time, no guesswork, and no unnecessary parts replacements.
Many garages use generic OBD-II readers that only scratch the surface. At JLR Autocare, we use manufacturer-specific diagnostic systems — including Jaguar Land Rover SDD/Pathfinder, BMW ISTA, Audi/VW ODIS, and Mercedes Star Diagnostic. These tools provide full access to every module in your vehicle, enabling accurate diagnosis that generic tools simply cannot achieve.
Our diagnostic process goes beyond simply reading fault codes. We analyse freeze-frame data, live sensor readings, and system adaptation values to understand the complete picture. This evidence-based approach means we identify the actual root cause — not just the symptom — saving you from expensive, unnecessary parts replacements.
We can also carry out module coding, programming, and software updates on many vehicles. This includes functions like coding new keys, programming replacement modules, enabling or disabling features, and updating control unit software. For JLR vehicles, we use the official SDD and Pathfinder diagnostic platforms.
Whether it's an engine management light on your Range Rover Velar, an ABS warning on your BMW X5, or an intermittent electrical fault on your Audi A6, our diagnostic technicians will get to the bottom of it — quickly and cost-effectively.
What's Included
Engine management light diagnosis and repair
ABS, traction control and stability system diagnostics
Airbag and SRS system fault-finding
Transmission and gearbox diagnostics
Dealer-level scan tools — ISTA, ODIS, Star Diagnostic, SDD
Live data analysis and oscilloscope testing
Coding, programming and module configuration
DPF / AdBlue / SCR system diagnostics
Or call us on 01462 420999
Frequently asked questions
What does a diagnostic check involve?
We connect manufacturer-level diagnostic equipment to your vehicle, read all fault codes across every module, analyse live data and freeze-frame information, and provide a full report with our findings and recommendations.
Can you diagnose Jaguar and Land Rover vehicles?
Yes — we use the official Jaguar Land Rover SDD and Pathfinder diagnostic systems, giving us the same capability as a JLR main dealer.
How long does a diagnostic take?
A standard diagnostic scan takes 30–60 minutes. Complex electrical faults requiring live testing may take longer — we'll keep you informed throughout.
Book your car in with JLR Autocare
29 Wilbury Way, Hitchin, Hertfordshire, SG4 0TW. Call the workshop or book a slot online and we will confirm the price before any work starts.