Xenon HID Ballast Control Unit Module 1307329153 Replacement for 2007-2013 E92 E93 328i M3 X3 X5 Ca-dillac DTS Au-di TT R8 Mi-ni 130732915301 AKWH

OEM Part Number: 1307329153, 130732915301, 1307329193, 130732919301, 63117182520, 63112754797, 8J0907391, 25806714

Replacement for: 2007-2013 BM-W 328i 328xi 335i 335xi M3 (E92 E93) Coupe or Convertible Only ; 2008-2011 BM-W M3 (E90); 2007-2010 BM-W 645Ci 650i M6 (E63 E64); 2007-2010 BM-W X3 (E83); 2007-2011 BM-W X5 (E70); 2007-2009 Coo-per / Coo-per S

Replacement for: 2007-2011 Ca-dillac DTS (NOTE: Multiple ballasts used for this model. Your existing ballast must say "307 329 153" or "307 329 193" on it); 2007-2011 A-u-d-i TT (NOTE: Multiple ballasts used for this model. Your existing ballast must say "307 329 153" or "307 329 193" on it); 2009-2012 A-u-d-i R8

The first function of a ballast is to help your lamp start up quickly. When the lamp is turned on, the ballast provides a surge of higher voltage to the lamp. This helps establish an arc between two electrodes on the lamp, which is what causes HID bulbs to light up. The other key function of a ballast is to keep your lamp running and make sure the output is steady.

A faulty ballast results in the complete failure of the headlamp. Causes of failure of the ballast include: 1. Lack of voltage supply; 2. Lack of ground connection; 3. Faulty electronics in the device; 4. Internal short circuits