Online vehicle diagnostics combine diagnostic scan tool data with original manufacturer repair information to help technicians identify faults faster and more accurately. This article explains how OEM diagnostic procedures, fault code guidance, Technical Service Bulletins, wiring diagrams and vehicle-specific repair information support more effective fault finding. It also covers diagnostic reports, electric vehicle diagnostics and how ALLDATA Repair helps workshops reduce unnecessary parts replacement and improve first-time fix rates.

Accurate electrical diagnostics depend on access to complete, original OEM wiring information. This article explains how car electrical wiring diagrams help technicians trace circuits, verify power and ground, identify wiring and communication faults, and avoid unnecessary parts replacement. It also explores the importance of OEM diagrams when diagnosing modern passenger cars, EVs, and trucks, and how ALLDATA Repair provides unedited manufacturer wiring diagrams for faster, more accurate diagnostics.

Tina Drayson and Michael Shaikly to present at ALLDATA Europe’s next Repair Excellence Event – held at independent workshop Nev’ll Fix It on Saturday 17 October.

New proprietary diagnostic workflow brings together OEM repair information and AI-powered insights in one workflow to reduce search time and improve diagnostic confidence. 

A technician needed the help of ALLDATA after the battery on a 2020 VW Tiguan TDI with DFHA engine code drained completely – despite the car switched off. 

A technician set about finding the correct servo motor for a SEAT Leon (Typ 1P – 2005-2012) after they discovered that the vehicle was only blowing hot air! Cool under pressure, the professional consulted ALLDATA. 

An OBD codes list gives technicians a starting point for diagnosing vehicle faults, but accurate repairs require more than generic code definitions. This article explains how workshops can combine Diagnostic Trouble Codes with OEM repair procedures, Technical Service Bulletins, wiring diagrams and diagnostic workflows to identify root causes, reduce diagnostic time and avoid unnecessary parts replacement. It also explains how ALLDATA Repair connects OBD codes with original manufacturer information for more efficient and accurate professional diagnostics.

ALLDATA® Europe, the leading provider of original Vehicle Manufacturer information for the automotive aftermarket, will attend Automechanika Frankfurt 2026, where it will highlight the latest developments across its repair, diagnostics and servicing information platform.

When a car returns to the workshop after an unsuccessful repair, the customer may return frustrated, disgruntled or angry – but in some cases, the technician needs to look further than standard repair instructions, like on certain Citroën models. 

OEM wiring diagrams on ALLDATA Repair have allowed a technician to resolve a recurring electrical fault on a Fiat 500 Cabrio (312). Despite the light circuit being repaired twice, access to the original manufacturer wiring information allowed the technician to trace the fault, identify the root cause of the problem and carry out a permanent repair. 

Oldfields Garage’s Tim Benson and CCM Garages’ Tina Drayson named as keynote speakers, while Simply Diag’s Steve Scott, Hella Gutmann’s Riccardo Sorano and Castrol’s Dave Roberts will present in-depth technical seminars during the Repair Excellence Event.

Oldfields Garage’s Tim Benson is encouraging fellow workshop professionals to take advantage of a “practical, valuable day” that is focused on grabbing workshop opportunities and overcoming challenges when ALLDATA’s Repair Excellence Event gets underway at the award-winning Herefordshire workshop on Saturday 11 July. 

ALLDATA Europe is delighted to announce the first Repair Excellence Event of 2026. Following the triumph of 2025, the leading provider of OEM repair data returns with Tim Benson’s award-winning Oldfields Garage ready to welcome independent workshops and technicians on Saturday 11 July.

ALLDATA Europe's Info Centre team has once again demonstrated its value by assisting a specialist workshop with the diagnosis of a challenging electrical fault on a 2001 Peugeot 406 Estate. After multiple unsuccessful repairs, including the replacement of several major components, the vehicle was effectively facing a final diagnostic assessment before being considered for scrappage. 

ALLDATA Info Centre helped a technician avoid costly engine damage by providing critical OEM guidance for a complex SEAT diesel repair.

ALLDATA Europe is delighted to confirm a four-person panel cast ahead of UK Garage & Bodyshop Event, a two-day show held at the National Exhibition Centre.

Sandown Park has been chosen as the ideal location to share a significant addition to ALLDATA Repair, aimed at making it a one-stop-shop for independent automotive aftermarket professionals. Recently appointed UK Sales Director, Damian Milling, will make his show debut. 

From mechanical repairs to AI-powered diagnostics, discover how automotive repair has evolved over 40 years and why OEM data is more vital than ever.

ALLDATA will host expert sessions at UK Garage & Bodyshop Event 2026, focusing on OEM data, diagnostics, profitability, and repair efficiency.

At Oldfields Garage, ALLDATA Europe and Schaeffler Vehicle Lifetime Solutions demonstrated how the power of OE repair data and solutions assisted the repair on a Škoda Kodiaq. 

Felix Bossert turned a small sideline garage into a seven-lift precision workshop using ALLDATA Repair, boosting efficiency, accuracy, and confidence.

AES York uses ALLDATA to solve complex vehicle diagnostics, boosting speed, confidence, and OEM-level repair accuracy for modern cars.

Damian Milling understands more than most why OEM repair data is more important than ever. Working alongside the wider ALLDATA Europe team, his mission is to ensure automotive aftermarket businesses not only survive but thrive. That ambition is being realised through sustained investment in OEM-quality products, people, marketing and customer support – all shaped by listening closely to the needs of the market. 

Gigacasting is changing vehicle manufacturing - and repair practices along with it. With ALLDATA Repair, workshops and bodyshops can confidently repair or replace complex aluminium structures, including those found on vehicles such as the Tesla Model Y.

ALLDATA Maintenance Schedules: One-stop-shop workshop companion for OE repair, maintenance and labour times.

Discover how OEM data helps workshops save time, build trust, and unlock hidden profits.

Autohaus Stumpf transformed into a multi-brand workshop using OEM data from ALLDATA Repair, delivering dealer-level confidence across all vehicle brands.

Oldfields Garage uses ALLDATA Repair daily to boost efficiency, confidence, and training for technicians across all vehicle types, including EVs.

Setting a new standard for independent workshops with streamlined precision, consistency, and workflow efficiency built in.

How OEM repair data helps independent workshops overcome skills gaps, vehicle complexity and an ageing car parc to grow profitably.

Sandown Park has been chosen as the ideal location to share a significant addition to ALLDATA Repair, aimed at making it a one-stop-shop for independent automotive aftermarket professionals. Recently appointed UK Sales Director, Damian Milling, will make his show debut.

Finding the diagnosis on one Ford Transit Connect might be considered hard enough, so what did the team at Adam Green Motors do when four entered the workshop – with the same problem!?

A persistent headlight issue plagued a 2013 Mazda 6 Estate, frustrating both the vehicle owner and the workshop. A full headlight replacement seemed inevitable – until ALLDATA Repair shed light on a smarter solution. 

Eine Werkstatt hatte echt ein Problem, als sie die Einspritzdüsen eines Vauxhall Movano B Combi von 2017 reparieren musste, weil die Anzahl der Zylinder nicht in den Fahrzeugpapieren stand. Wie hast du die Reihenfolge der Zylinder gezählt? 

With more than 30 years’ automotive aftermarket experience, vast knowledge of motor factoring, manufacturing and independent workshops, ALLDATA Europe’s new UK sales director is poised to make significant impact. 

Peter Ballé joins ALLDATA Europe as VP of Sales, bringing 20+ years of automotive experience to drive growth and strengthen European operations

Peter Ballé joins ALLDATA Europe as Vice President of Sales, bringing 20+ years of automotive experience. In this Q&A, he shares his vision for growth and how ALLDATA supports workshops in a changing market.

To help technicians diagnose and fix vehicles even faster, ALLDATA has added a new feature to its ALLDATA Diagnostics^TM scan tool. 

A diagnosis was required for a 2020 Škoda Karoq 1.0 TSI after the vehicle’s owner brought an unusual problem to the workshop.