【Premium quality 】made of premium aluminum for better heat dissipation and vibration resistance performance,also with 6 protections against overpressure,low pressure,overheating,no-load,short circuit,reverse connection for more safety and durability.B uilt-in high pressure bag can speed up current conduction speed & save power consumption for fast startup,also can protect high pressure bag from any dust & rain in the engine environment to enhance security 【Replacement A ballast】It is a crucial part of a fluorescent or HID lighting system. Also does it provides enough voltage and current throughout operation and regulates the electrical current of the light once it is lit. It can act as DC to AC converter so that you can use the normal DC power source in the car to light the bulbs efficiently.The most common cause of HID Ballas failure is long term use, which can resulting in flickering, dipped beam not working or light failed. 【Powerful function】 Waterproof & shockproof performance-the internal circuit board is treated with adhesive glue irrigation , protect internal electronic components from oxidation & aging.It can help your lamp start up quickly. When the lamp is turned on, the ballast provides a surge of higher voltage, then establish an arc between two electrodes on the lamp and reduces the voltage and the electric current. This ensures the light produced is even and steady, without flickering or fading. 【Reference OE】:manufacturer part # 5DV 008 290-00, 5DV 008 855-00, 008290004 ; Audi part # 4E0 907 476; BMW part # 63126907488, 63120150614, 63126916100; Mercedes part # 002 820 23 26; Ford part # 2M5Z-13C170-AA; Maserati part # 980139011; Saab part # 12790592, 12-790-592; Jaguar part # C2S015079, C2S52482 【Compatible】:the 5DV 008 290-00 ballast fits for 2005-2008 Audi A6 / S6; 2005-2008 Audi A6 / A6 Avant / S6 / S6 Quattro; 2004-2008 Audi A8 / S8; 2003-2005 BMW 5 series (E60); 2002-2004 BMW 7 series (E65 E66 E67 E68); 2004-2006 BMW X5 (E53); 2003-2007 BMW Z4 (E85 E86); 2003-2007 Saab 9-3;please carefully check the fitment below,warranty:1 years YunStal is a professional automotive accessories supplier,We are committed to providing our consumers with high quality and cost-effective products

Feature:
Built-in high pressure bag for fast startup & safe stability
Aluminum shell for better heat dissipation and vibration resistance
Treated with adhesive glue irrigation for better waterproof & shockproof performance

Manufacturer part #:5DV 008 290-00, 5DV 008 855-00, 008290004
Audi part #:4E0 907 476
BMW part #:63126907488, 63120150614, 63126916100
Mercedes part #:002 820 23 26
Ford part #:2M5Z-13C170-AA
Maserati part #:980139011
Saab part #:12790592, 12-790-592
Jaguar part #:C2S015079, C2S52482

Fitment:
2005-2008 Audi A6 / S6
2005-2008 Audi A6 / A6 Avant / S6 / S6 Quattro
2004-2008 Audi A8 / S8
2003-2005 BMW 5 series (E60)
2002-2004 BMW 7 series (E65 E66 E67 E68)
2004-2006 BMW X5 (E53)
2003-2007 BMW Z4 (E85 E86)
2002-2006 Ford Focus
2002-2007 Jaguar S type
2002-2007 Jaguar X type
2006 Land Rover Range Rover Sport
2006-2008 Mercedes CLS class (W219)
2003-2006 Mercedes E class (W211)
2002-2008 Mercedes ML class (W164)
2007-2008 Mercedes GL class (X164)
2006-2008 Mercedes R class (W251)
2005-2008 Mercedes SLK class (R171)
2003-2007 Saab 9-3
2003-2008 Rolls Royce Phantom (RR1 RR2 RR3)
2004-2007 Maserati Quattroporte (M139)