1、OE Number: The referencing OE number of this glow plug system control unit are 6429005801, 6429007801, 6421530379, 6429002800, 6421532079. 2、Fitment: The turbo diesel engine glow plug module is a replacement for CLK (C209), for CLK Convertible (A209), for CLS (C219), for C‑CLASS (W203). 3、Perfect Fit: Ideal replacement parts, perfect fit to your car, no modifications, durable ABS housing, ensuring high durability and stability. 4、Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 5、Easy to Install: Stringently manufactured to meet the original standard, perfect replacement for the old or broken one, improving the time efficiency.