Electronics & engine management 28 www.aftermarketonline.net JUNE 2026 Reducing the risk of costly timing chain comebacks Comline has unveiled a new range of timing chain kits, which it says is engineered to deliver OE-matching quality and robust reliability, and is backed by a four-year/100,000km warranty. Timing chains were once considered a lifetime solution. Today, many independent workshops report that this reputation no longer consistently holds true. Across a growing number of modern engines, technicians are seeing timing chain failures at lower-than-expected mileages – in some reported cases, as early as 30,000 miles. These failures can result in high-value, labour-intensive repairs, often requiring engine or gearbox removal, with extended labour times and an increased risk of costly comebacks. On certain modern engines – including widely discussed applications, such as JLR Ingenium, VAG TSI and BMW N47 – timing chain work is becoming a more regular feature in the workshop. A familiar problem for workshops Modern engine designs can place increased stress on timing systems. Higher operating temperatures, extended service intervals and compact packaging may all contribute to accelerated wear, while early warning signs can be easy to overlook. Workshops commonly report cold start rattles that worsen over time, chain stretch causing timing issues before fault codes appear, and partial repairs increasing the likelihood of repeat failures. Once a chain issue escalates, the consequences can be significant – not just for the vehicle, but for workshop efficiency, customer confidence and reputation. A new generation of timing chain kits These real world trends have driven Comline’s launch of its new timing chain kits. Developed by Comline’s engine parts team, drawing on more than 40 years of specialist experience, the kits are manufactured in OE factories and tested to meet the demands of modern engines. The range launches with over 300 SKUs, covering many commonly serviced applications, including JLR Ingenium, VAG 1.4 TSI and BMW N47. Workshops can choose between basic kits – containing the timing chain, guides, tensioner and pre lube – or full kits, supplying all components required for a complete timing system replacement. Key features include OXICOAT chain pin coating for improved wear resistance, 360° full load chain pin staking for consistent strength and durability, and laser marked tensioner torque settings, helping technicians install components accurately and efficiently. All Comline timing chain kits are backed by a four year/100,000 km warranty, providing reassurance on labour intensive, high value repairs. Reduce risk and improve efficiency For workshops, timing chain repairs are among the highest risk jobs on the ramp. Comline’s timing chain kits are designed to help reduce that risk by supporting complete, first time right repairs. The benefits include helping reduce comeback risk by enabling a full system replacement rather than partial repairs, supporting confidence on commonly-reported problem applications, and faster, more straightforward installation, thanks to technician friendly features that reduce guesswork on complex jobs Real world validation To reinforce confidence in its new timing chain kits, Comline has partnered with respected UK-based workshop and YouTube channel, The Car Edition, using real repairs to demonstrate real results. Rather than staged demonstrations, the collaboration documents genuine diagnosis and installation work carried out in a working Cambridgeshire workshop. The first video in the series follows a timing chain replacement on a 2020 Land Rover Defender Ingenium engine, using a Comline kit. The technician explains the cause of failure, early warning signs and why a complete system replacement is often considered best practice. For workshops, the partnership provides transparent, real world insight into how the kits perform in a day-to-day workshop environment. tinyurl.com/4jn9mhnz
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