RE: Recall 21V-907: Exhaust Gas Recirculation (EGR) Cooler – N47T High Temperature Bulletin: B11 09 21 BMW AG is conducting a Voluntary Safety Recall (effective November 18, 2021) on certain Model Year 2013 - 2018 BMW vehicles with the N47T diesel engine that were produced between September 12, 2012 and September 5, 2018. BMW has extended a safety recall for diesel vehicles across various model lines over a potential fire risk – now affecting around 268,000 units in the UK and 1.6 million globally. According to How to clean your BMW X3 EGR valve: Identifying faults. The EGR valve, nevertheless very useful to limit the pollution emissions of your BMW X3 , will unfortunately tend to clog up because of soot/gas deposits that will build up in its mechanism, which will eventually risk blocking the functions of the valve, until completely blocking the engine motor, here are the symptoms that a defective 2. At idle, your EGR valve should be closed (read: not activated), allowing no exhaust gas to get into the intake air. At idle, any exhaust blended in with the fresh air might indeed cause your engine to have a rough RPM. A rough idle combined with a fault code for excessive exhaust flow of your EGR system is a good indicator that it is well Glow plugs are only to get the engine running in the first few turns, or when there is a DPF Regen under way. We have seen glow plug faults causing the DPF issues as it won't regen without them all working. You are recommended to change the glowplugs controller as well. Failed plugs tend to take the controller out too. Quote: Originally Posted by Yozh. I think you have to distinguish between the EGR block off and EGR coolant bypass. With EGR block off, you keep the EGR cooler in place and just block off the exhaust manifold side and then the EGR valve side. The coolant still flows through the cooler but not the exhaust stream. 6FmO. When a cold engine is started, the secondary air pump will run for a calculated amount of time. The check valve is the most common part to fail. On early X3 models, a flow meter is used on the inlet of the pump to confirm pump operation. In this tech article I will show you how to test the secondary air system valve on 6-cylinder M54 engine.

bmw x3 egr valve problems