Volvo S40 Headlight Bulb Size

Additional Notes

• The H7 bulb is the most broadly used type across the Volvo S40 headlight specifications, appearing in both high beam and low beam positions across the 2000-2004 model years, as well as in the high beam position on HID-equipped vehicles from 2005-2011. It follows the ECE standard, operates on a single filament with a PX26d base, and runs at 12V and 55W.
• The 9005 bulb serves as the high beam light source in halogen capsule headlamp configurations on the S40 from 2005-2011. It follows the ANSI standard used in the US and Canada, uses a P20d base, and operates at 12V and 65W, drawing 10 watts more than the H7 it accompanies in the same headlamp system.
• The H11 bulb fills the low beam position in halogen capsule headlamp configurations from 2005-2011. Like the H7, it is a single-filament ECE-standard halogen type rated at 12V and 55W, though it uses a PGJ19-2 base, making it physically incompatible with H7 sockets despite sharing the same wattage and voltage rating.
• On HID-equipped S40 vehicles, the low beam bulb type changed between model years. The D2S was specified for 2005-2007 models, while the D1S replaced it from 2008-2011. Both are xenon discharge types rated at 85V and 35W for projector-type housings, but they differ in ignitor design: the D1S integrates the ignitor into the bulb itself, whereas the D2S requires a separate external ignitor.
• The Volvo S40 (2004) presents a split-year fitment for the low beam position, with H7 specified for the early model and H11 for the late model. These two bulb types use different base fittings and are not interchangeable, so the production period of a specific 2004 vehicle is a relevant factor in determining the correct low beam bulb.
• On S40 vehicles from 2005-2011 equipped with HID headlamps, the high beam position uses an H7 halogen bulb rather than a discharge type. This reflects a common projector-based headlamp architecture in which the HID unit handles low beam output while a conventional halogen bulb provides the high beam function.
• The D1S and D2S bulbs share the same P32d-series base family and identical electrical ratings of 85V and 35W, but their base designations differ: PK32d-2 for the D1S and P32d-2 for the D2S. This difference corresponds directly to the integral versus external ignitor distinction and means the two types are not interchangeable even though their light output characteristics are equivalent.
• From 2000-2003, the Volvo S40 used H7 bulbs in both the high beam and low beam positions without any headlamp system variants noted in the specifications. This contrasts with the 2005-2011 period, where both halogen and HID configurations are documented with distinct bulb requirements for each.