Citroen C4 Grille: Fitment, Sensors & Common Damage

On the C4, the front grille is rarely just a styling panel — on ACC-equipped trims it also houses the radar sensor behind a small panel, worth knowing about if a fault develops.

Generation covered: this guide is for the current C4 (launched 2021, facelifted 2024), with particular focus on 2021–2023 registered examples now old enough for parts to be a common search. Check your logbook or VIN if you're unsure which generation you have.

Illustration for editorial purposes

A Genuinely Useful Diagnostic Tip, If Fitted With Adaptive Cruise Control

If the radar sensor itself genuinely is at fault, a real, well-corroborated first step before any paid diagnostics: the sensor sits behind a small panel low in the front grille, and simply cleaning this panel thoroughly has resolved the fault entirely in multiple documented cases.

Cosmetic on the Surface, Functional Underneath

The front grille does more than shape a car's face — it manages airflow to the radiator and, on many modern cars, houses or surrounds sensors for adaptive cruise control or parking assistance, meaning the correct part depends on more than just how it looks.

Before you buy: grille design varies significantly by trim, and higher trims may integrate radar or camera sensors behind or within the grille itself. Always confirm against your VIN before ordering.

OEM Part Numbers

Accuracy note: most listings we found mix multiple C4 generations together, and we couldn't isolate a confident number specific to this current (2021 onward) car. Please confirm the correct part via a Citroen dealer or parts specialist using your VIN.

Grille design varies by trim and whether the bumper has fog lights fitted (some grille sections incorporate fog light openings, others don't), and the 2024 facelift revised the front-end styling. Confirm your exact trim and build date before ordering.

What It Does

Beyond styling, the grille on the C4 directs airflow to the radiator and, on trims equipped with adaptive cruise control, may house or sit directly in front of the radar sensor used for that system. A grille that looks compatible but lacks the correct sensor cutout can interfere with these systems even if it fits physically.

Generations & Grille Finish

Standard trims	"Macro chevron" pattern air intake grilles, a distinctive Citroen-specific design shared with concept-car styling
ë-C4 electric	Anodised Blue Colour Pack insert around the grille/fog light area is exclusive to the electric version, not available on the petrol/diesel C4

Common Damage, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Grille Guide for common damage types, confirming trim-specific fitment, how difficult this job is to DIY, and the ADAS calibration risk with sensor-equipped grilles.

More Citroen Grille

The same part, covered across other Citroen models.

Citroen C4 Grille: Fitment, Sensors & Common Damage

A Genuinely Useful Diagnostic Tip, If Fitted With Adaptive Cruise Control

OEM Part Numbers

Shop for This Part on eBay