LED Headlight DRL Ballast Module For Audi A6 A3 4G0907397P
Restore consistent HID xenon beam output with this 4G0907397P ballast module, engineered as a direct-fit replacement for vehicles relying on factory DRL control units. When original ballast circuits degrade, drivers typically notice slow lamp warm-up times, intermittent daylight running light failures, or complete headlight dropout. This aftermarket unit replaces aging capacitors and voltage regulators inside the housing, restoring stable ignition cycles and preventing premature bulb filament damage.
Benefits & Practical Tips
- Confirm your existing part code matches 4G0907397P before removal, as alternate designations like 4G0.907.397.R or 4G0.907.397.D may require specific system mapping for optimal communication.
- Clean exposed metal grounding contacts with isopropyl alcohol prior to connection to eliminate corrosion-related flickering during initial start-up.
- Test both left and right headlight functions in a low-light environment immediately after reassembly to verify clean ballast ramp-up and proper thermal management.
Technical Specifications
- Manufacturer Part Number: 4G0907397P
- Alternative Codes: 4G0.907.397.P / R / D, 4G0 907 397 P / R / D
- Housing Composition: Impact-resistant polyethylene (PE)
- Net Weight: 0.15 kg
- Function: HID/Xenon Headlight Ballast Replacement
- Vehicle Coverage: Audi A4/A5/A6/A8/S4/S5/S6/S8/Q3/Q5/TT/TTRS/RS4/RS5/RSQ3 (2010–2021); Skoda Octavia III and Yeti (2013–2018)
- Condition: Brand new, factory tested
Package Includes
- 1 × 4G0907397P HID ballast module
Important Reminders
This component is manufactured to meet OEM dimensional and electrical tolerances but remains a third-party replacement item. Professional automotive electrical diagnostics and safe battery disconnection procedures are strongly advised before handling headlight harnesses. Factory installation guides are not provided.
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