1、PART NUMBER: With part numbers 12217800156 and 12218591724 for reference. Manufactured according to original specifications, ensuring a perfect match function to the original part. 2、VEHICLE FITMENT: Fit for 3 Series E90 325 d 03.2010 ‑ 10.2011, for 3 Series Convertible E93 325 d 03.2007 ‑ 12.2010, for 3 Series Coupe E92 325 d 09.2009 ‑ 12.2013, etc. 3、OPTIMUM PERFORMANCE: The control module meticulously manages the heating of the glow plug, ensuring your engine starts quickly and runs smoothly. 4、PREMIUM MATERIAL: The unit is designed with ABS, metal materials that offer high impact resistance and scratch resistance, ensuring reliable operation and long lifespan. 5、PERFECT REPLACEMENT: Replace your old or faulty glow plug relay unit with our high grade alternative part, perfectly fitting your vehicle for optimal performance.