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Questions & Answers
Have a Question?
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Will the Phillip's D3S 42403C1 work for my 2013 VW CC Sport Plus?
D3S is the correct size for the 2013 VW CC equipped with HID Xenon headlights.
For any other questions, please write to info@hidconcept.com
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Hi HID Concept Team, I need to replace my HID light bulbs and I'm debating between the D3S: Philips 4300K Standard HID OEM Bulb 42403C1 with Security Label (Pack of 2) and D3S: Osram 4300K Standard HID OEM Bulb 66340 (Pack of 2). You offer both for the very good price of $104.99 - do you have any recommendation? Thank you, Peter
Essentially, both Osram and Philips OEM HID xenon bulbs are used in 95% of all vehicles with HID xenon headlight assembly. Both made in Germany, and it really comes down to either a personal preference or what came with the vehicle for familiarity. This does not mean much, but we do have to give Philips a credit for being the first one to come up with an HID xenon headlight bulb for the vehicles.
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I have a 2015 Audi S5 convertible and have the "low beam/high beam headlight" warning. I think this is the correct replacement, but let me know what info you have. Thanks!
D3S is the correct HID bulb size for your 2015 Audi S5 equipped with the HID headlight trim. Your headlight is called Bi-Xenon. It is a type of headlight that uses one set of bulbs for both high and low beams. If you are receiving a warning from the vehicle, the following issues may be the cause:
Most Common Causes
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Burned-out HID (D3S or D1S) bulb
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The xenon capsule may be at the end of its life even if it still lights up dimly or flickers.
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As HID bulbs age, they draw inconsistent current, triggering the dashboard warning.
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Failing HID ballast (control unit)
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If the bulb is new but the warning remains or one side intermittently works, the ballast may be weak or failing to ignite the bulb properly.
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Moisture intrusion or heat damage can cause this.
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Headlight igniter or wiring issue
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Loose connectors, corroded contacts, or damaged wiring between the bulb, igniter, and ballast can cause intermittent faults that trigger the warning.
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High/low beam shutter malfunction (for bi-xenon headlights)
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The S5’s projector assembly uses a solenoid-controlled shutter to switch between low and high beams. If the shutter motor or signal wire fails, it can trip the warning even though the bulb is fine.
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Headlight control module or coding fault
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Sometimes after replacing a bulb or ballast, the system needs to be reset or re-coded using a scan tool (VCDS or OBD11). The system may still think a bulb is out.
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Possible Solutions
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Swap left and right HID bulbs:
If the warning moves to the other side, the bulb is the culprit. -
Check for flickering or color shift:
A pink or purple tint usually means the HID capsule is failing. -
If both low and high beams fail simultaneously on one side:
It’s more likely a ballast, igniter, or wiring issue than a bulb.
For any other questions, please write to info@hidconcept.com
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I need to find out if this bulb will fit my two thousand eight eighteen jeep cherokee
2018 Jeep Grand Cherokee has two headlight trim levels.
If you have the HID Xenon headlights, D3S is the correct HID bulb size. If you have the incandescent headlights, H11 is the correct halogen size.
For any other questions, please write to info@hidconcept.com
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will these bulbs work in my 2016 jeep Cherokee limited, 6cy
If you have the HID headlight trim for your 2016 Jeep Cherokee, D3S is the correct size.
For any other questions, please write to info@hidconcept.com
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Are these the correct bulb for the 2014 Kia Cadenza premium?
D1S is the correct HID bulb size for the 2014 Kia Cadenza equipped with HID headlight trim.
For any other questions, please write to info@hidconcept.com
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Will this fit my 2013 A4 Audi Allroad?
D3S is the correct size for the 2013 Audi A4 equipped with HID headlight trim.
For any other questions, please write to info@hidconcept.com
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Will this bulv fit 2017 dodge challenger sxt
D3S is the correct size for the 2017 Dodge Challenger SXT equipped with HID headlight trim.
For any other questions, please write to info@hidconcept.com
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Are these the correct bulbs for a 2017 Chrysler Pacifica Limited LOW beam headlight?
D3S is the correct size for the 2017 Chrysler Pacifica with HID headlight trim. Please note that same year Pacifica also had two different halogen headlights trims that used H11 and 9005 (HB3)
For any other questions, please write to info@hidconcept.com
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Will this bulb fit 2014 Kia Optima SX Turbo?
The correct HID bulb size for the 2014 Kia Optima SX Turbo is D1S and not D3S.
For any other questions, please write to info@hidconcept.com







