Aftermarket Magazine July/August 2025

Technical 18 www.aftermarketonline.net JULY/AUGUST 2025 Technicians turn detective with inside intelligence How workshops turned to ALLDATA Repair to find solutions to two different vehicle problems Adiagnosis was required for a 2020 Škoda Karoq 1.0 TSI after the vehicle’s owner brought an unusual problem to the workshop. Problem The customer reported ‘jerking’ when accelerating but, despite clear symptoms, the vehicle’s fault memory did not show any corresponding indications. The workshop technician took the vehicle out for a test drive, where it was confirmed that, at higher speeds, the driver would feel significant vibrations throughout the vehicle, particularly in the steering wheel. A quick diagnosis would be tough because there were no error codes or messages displayed on the dashboard — but the technician was confident that the cause would be mechanical, rather than electronic. Solution Rather than guess, wasting time and frustrating the customer in the process, the technician turned to ALLDATA Repair. This is a portal that grants independent workshop and bodyshop professionals instant access to genuine repair and maintenance instructions from 41 vehicle manufacturers (VMs). A targeted search for “vibrations” led the professional to the appropriate, unedited technical product information from the VM. The data showed ‘incorrect wheel balancing’, ‘rim damage’ or ‘tyre deformation due to prolonged inactivity’ as common causes of wheel vibrations. Consequently, the workshop technician inspected the wheels and tyres, with a measurement showing that two wheels had a significant radial and lateral run-out — a problem that is not immediately visible but can cause severe vibrations. The professional was able to balance the two affected wheels and position the tyres accurately. Upon another test drive, the jerking had stopped, and the vehicle ran smoothly once more. Problem In a separate case, a workshop faced a tough ask when the injectors of a 2017 Vauxhall Movano B Combi needed to be serviced — but the cylinder numbering was not visible on the vehicle’s documents, so how did the technician count the cylinder sequence? Without the correct information, the technician would likely have disconnected the injectors or dismantle them — a risk that could have exacerbated the issue to the detriment of the motorist. Solution To provide the motorist with the best service and quickly return their vehicle to the road, the workshop technician contacted the ALLDATA Info Centre. An expert guided them to the correct information in ALLDATA Repair. A targeted search for the relevant VM schematics for the engine control and glow plugs showed that one glow plug was equipped with a combustion chamber pressure sensor, a clear indication of cylinder one. With this crucial information, the technician was able to determine the correct cylinder sequence. Correct cylinder numbering is essential for accurate fault diagnosis. In modern engines with common rail direct injection, each injector is individually programmed to its corresponding cylinder. Incorrect assignment can cause misfiring, rough running or power loss. The ALLDATA Repair Info Centre Service is an invaluable tool, with a team of master technicians ready to resolve queries within four hours — often faster! Subscribers can access this service whenever they need assistance. Professionals may need this service when they have difficul ty locating specific information that has not yet been uploaded to ALLDATA Repair, need tailored service and maintenance schedules, or are unfamiliar with a VM’s repair information. With the ALLDATA Info Centre, workshops can save time, avoid costly mistakes and ensure accurate repairs — keeping motorists safe on the road. ALLDATA Europe is a leading provider of original VM, repair maintenance and diagnostic data and is the company behind ALLDATA Repair, a single, easy-to-navigate information portal that allows independent workshop. ALLDATA Repair comprises more than 90 million articles, nine million technical drawings and wiring diagrams with electrical connector views — that’s procedures for 145,000 year, make, model and powertrain. With an ALLDATA Repair subscription, users can utilise the ALLDATA Repair Info Centre Service too. Visit https://www.alldata. com/eu/en/repair-europe for more information about subscriptions to ALLDATA Repair and to sign up for trial use.

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