What is the low beam headlight bulb size for a 2018 Jaguar XJ?

The 2018 Jaguar XJ uses a N/A bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2018 Jaguar XJ?

The high beam bulb size for the 2018 Jaguar XJ is N/A.

Why are my 2018 Jaguar XJ headlights dim?

Dim headlights on a 2018 Jaguar XJ can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a N/A LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2018 Jaguar XJ fog light?

The 2018 Jaguar XJ typically does not come with factory fog lights in all trim levels. If your vehicle is equipped with them, check the manual as sizes can vary by trim.

Is the 2018 Jaguar XJ single or dual beam?

The 2018 Jaguar XJ uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2018 Jaguar XJ?

Yes, the 2018 Jaguar XJ comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a N/A LED conversion kit for the low beams.

Did the 2018 Jaguar XJ change headlight bulb sizes from the previous year?

Yes — the 2018 Jaguar XJ uses different bulb sizes than the 2017 model. The 2018–2019 generation introduced this bulb configuration.

Is the 2018 Jaguar XJ the first or last year to use N/A bulbs?

The 2018 Jaguar XJ is the first year in the 2018–2019 generation to use the N/A bulb for the low beam headlight.

How do I change the headlight on a 2018 Jaguar XJ?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old N/A bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2018 Jaguar XJ?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved N/A LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2018 Jaguar XJ headlights?

A pair of halogen N/A bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2018 Jaguar XJ?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the N/A position are available as direct plug-and-play replacements.

The 2018 Jaguar XJ is the first model year to use this bulb configuration (2018–2019).

Fitment Guaranteed for 2018 Jaguar XJ

What Size Bulbs Does a 2018 Jaguar XJ Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2018 Jaguar XJ Have?

When it comes to nighttime visibility, the 2018 Jaguar XJ relies on an arrangement of 1 specialized bulbs. It features a standard lighting system powered by a dual-bulb halogen configuration using separate low beam and high beam bulbs for precise light distribution. This model belongs to the late years of the XJ's 1969-2019 production span.

Can You Put LED Bulbs in a 2018 Jaguar XJ?

Upgrading to LED is one of the most effective ways to modernize your Jaguar's appearance and safety profile. We recommend starting your upgrade with the low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance.

2018 Jaguar XJ Bulb Size Chart

Position	Bulb Size	Shop
License Plate	W5W	Buy W5W →

How do the 2018 Jaguar XJ's bulbs compare to other years?

The 2018 Jaguar XJ changed bulb sizes from 2017. The previous model year used a different configuration.

The 2019 model continues with the same bulb sizes.

This bulb configuration covers the 2018–2019 model years. ← 2017 2019 →

Finding the best installation guide...

Other XJ Years

2019 2017 2016 2015 2014 2013 2012 2011 2010 1971 1970 1969

More from Jaguar

F-Pace F-Type S-Type Super V8 Vanden Plas X-Type XE XF