So..... I am happy to do a trawl, and have read several throuds on it, but wondered if there is a list for all lights replacement in the headlamps without soldering resisters but can get them maybe to 4500k or 5000k.

I bought basic 3600K ones the other day for much cheapness like for 4 Euro as my main headlight lamp is out, and I might just check its not become loose as it worked then didnt then did then didnt and is now out permanently.

Anyway if you have a list and wouldn't mind sharing then I'll get the garage to take the lights out and do them all at the same time as it appears a total ball ache to do.

 

For your 2004 Bentley Continental GT Coupe, here is the typical headlamp bulb list required if you want to change all the bulbs inside the headlamp assemblies (both low and high beams, as well as side lights and turn indicators where applicable):

✅ Low Beam (Dipped Beam)

• Type: D1S Xenon HID
  
• Wattage: 35W
  
• Notes: Factory-fitted with HID system (xenon gas-discharge lamp). Requires a ballast and ignitor.
  

✅ High Beam (Main Beam)

• Type: H7 Halogen
  
• Wattage: 55W
  
• Notes: Standard halogen bulb. Easily replaceable.
  

✅ Front Side Marker / Position Light (Parking Light)

• Type: W5W (T10 wedge)
  
• Wattage: 5W
  

✅ Front Turn Signal Indicator

• Type: PY21W (amber)
  
• Wattage: 21W
  
• Notes: Make sure to use amber-coated bulbs if clear lenses are used.
  

✅ Daytime Running Light (DRL) / Fog Light (Lower Bumper)

• Type: H11 (Some models may use H8 depending on market)
  
• Wattage: 55W
  
• Note: These are separate from the headlamp assembly but mounted in the lower bumper area.
  

Additional Notes:

• The headlamp unit is a sealed assembly, and replacement of certain bulbs like the D1S HID requires careful handling, as the ballast and ignitor are high voltage components.
  
• If you are replacing the HID bulbs, it's highly recommended to replace them in pairs to maintain color temperature consistency.
  
• Use gloves or a cloth when handling all bulbs to avoid oil contamination, especially halogen and HID bulbs.
  
• The access to the bulbs may require partial removal of the front bumper or inner wheel liner for ease of access.
  

This is what ChatGPT says.........