Aftermarket Magazine February 2026

Electronics and engine management 24 www.aftermarketonline.net FEBRUARY 2026 Workshops service with a future Ongoing value and benefits of automatic transmission oil changes Automatic gearboxes have become a familiar sight in workshops across the UK. And with them comes a growing conversation: how do we maintain these systems properly as they age, rack up mileage and face every day driving stresses? And what about EVs? Among all the relevant tasks, the automatic transmission oil change still carries a degree of caution. Some workshops avoid it; others offer it only on request. In reality, it is a service that delivers clear benefits — for customers and for the technicians who work on these increasingly complex drivetrains. Every workshop will recognise the symptoms. A customer arrives complaining that the car hesitates before shifting into drive. Another reports uneven gear changes during gentle acceleration. A third mentions a faint vibration on the dual carriageway. Often, the first suspicion falls on electronics or engine management. Yet many of these issues trace back to something much simpler: ageing transmission oil that is no longer doing its job as intended. Like any working fluid, transmission oil is exposed to heat, mechanical load and the steady accumulation of wear particles. Over time, its ability to lubricate, cool and maintain hydraulic pressure decreases. Modern gearboxes, whether torque converter automatics, dual-clutch units or CVTs, rely heavily on precise fluid behaviour. When that performance fades, shift quality often fades with it. That’s why a fluid replacement at defined intervals — typically somewhere between 80,000-120,000 kilometres, depending on usage — is highly recommended. Urban stop-and-go driving, frequent towing or regular high-load situations can shorten these intervals even further. Carrying out an automatic transmission oil change correctly requires attention to detail: choosing the right specification, filling the correct volume, and replacing components such as filters, seals or screws where required. But when all elements come together, the result is noticeable: smoother shifting, improved drivability and fewer unexpected gearbox issues. For many independent workshops, predictability is key. That’s why complete oil-change kits have become a practical solution. They bring all relevant parts together — oil, seals, screws, filters where applicable — and remove the uncertainty about what might be needed once the gearbox is open. With the right manufacturer data to hand, technicians can carry out the service methodically, without delays or avoidable complications. It’s a straightforward addition to a workshop’s portfolio, and one that strengthens the relationship with customers by offering preventive maintenance rather than reactive repair. Even though the myth that EVs are maintenance-free persists, they are not. Many electric drive units rely on oil for lubrication, cooling and long-term efficiency. Tesla’s Models S, 3, X and Y are well-known examples. Here, the same principle applies as for combustion engines: targeted oil changes help preserve performance and reduce wear. MEYLE’s structured transmission oil-change kit for Tesla drive units takes this familiar approach from automatic gearboxes and applies it to a new drivetrain category — offering technicians a clear, step-by-step route into EV oil maintenance without reinventing the process. Automatic transmission oil changes are no longer a niche request — they’re becoming part of everyday workshop practice. When carried out correctly, they offer smoother driving for customers, longer gearbox life for vehicles and a reliable, well-defined service opportunity for independent workshops. And as electrified vehicles continue to grow in numbers, the core idea remains the same: well-maintained oil, whether in a classic automatic or a modern drive unit, makes a measurable difference. Visit www.meyle.com for more information.

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