Aftermarket May 2022

MAY 2022 AFTERMARKET 29 Above: EGR module, before and after reman www.aftermarketonline.net link between thermal management and mechanical components, these devices convert thermal information to actuator travel. Can you explain how exhaust gas recirculation is used and how it works within the systems it is deployed on? BorgWarner’s advanced EGR system is an effective and cost-efficient inside- the-engine method to significantly reduce emissions by recirculating a controllable amount of the exhaust gas back into the intake air. BorgWarner’s EGR system reduces emissions through optimized heat management of recirculated exhaust gases, as well as lowering oxygen concentration within the combustion chamber, resulting in lower peak cylinder temperatures. With the capability to resist high thermal loads, the advanced all-in-one solution enables increased efficiency and durable performance even with minimal coolant flow. An EGR module unites different technologies such as an EGR cooler, an EGR valves and integrated shut-off flap into one compact package. BorgWarner EGR systems precisely control the exhaust gas flow which is redirected back into the intake system. By applying OE quality standards, BorgWarner is providing highest quality products to OEM and IAM customers, strengthening the company’s position as an EGR market leader. Additionally, BorgWarner is offering aftermarket customers remanufactured EGR valves - a high- quality, sustainable solution that fits a vehicle’s current value. The remanufacturing process reduces greenhouse gas emissions, saves energy, decreases waste and conserves water, actively contributing to BorgWarner’s sustainability goal to reach carbon neutrality by 2035. When having to service or repair these systems what should technicians be looking out for? Replacing EGR varies from one application to another, based on system location, exhaust gas technology, product technology/operation and car specifications. The root cause of EGR failure needs to be investigated before replacing, as soot and carbon deposited within the system can lead to a failed EGR valve but also system operation failure. BorgWarner Aftermarket recommends following the OE certified installation manuals as it provides the full recommended steps when changing the EGR valve. Older cars with mechanical EGR make the repair job and the replacement process easier, whereas for recent high technology applications, EGR valve replacement is not only about exchanging the part but also complete system functionality. When using the latest software update in the diagnostic tool in the workshop, the technician resetting the EGR system also needs to perform a system check in order to maintain system operation. What are common problems and solutions within the EGR system? The exhaust flowing through the EGR systems contains a large number of contaminants. These contaminants may lead to a clogged EGR pipe or a sticky EGR valve. Over time, these substances make it more difficult for the valve to open and close properly, it may even be stuck in a partially open or partially closed position. This can lead to several problems. An EGR valve that is improperly functioning will change the emission value leading to improper combustion behaviour, which harms the engine operation. In most cases those problems can be resolved by cleaning any deposits off of your EGR system components. If the build-up has led to mechanical damage, however, you may need to have an entirely new EGR system installed. Modern technologies have to withstand lots of extreme external circumstances while they also need to function reliably over long distances and for a long time. Quality is the key to maximum customer safety and satisfaction, regardless if new series product or remanufactured solution. BorgWarner manufactures according to strict guidelines based upon internal development and quality assurance processes. Demanding quality checks and tests are applied to every single product whether it is a new or a remanufactured component. How important is it to use the best EGR components when working on these systems? As already mentioned, quality is the key to maximum customer safety and satisfaction. Non-genuine products often use third-party parts made out of inadequate materials, with less performance in functionality and durability. Usually, they also lack high standard quality checks. Non-genuine products often show significant disadvantages with regard to emissions, fuel consumption and performance. Inferior components could even cause damage to the engine, which results in extremely costly repairs. As product leader for EGR components, BorgWarner offers a broad portfolio of genuine BorgWarner parts and original EGR technology for the aftermarket. Both stand for premium quality. This means that these parts are of the same quality as the original issue used by automakers.