AdBlue / SCR emissions faults
UREA or engine warning lights, emissions fault messages, restart countdown, sometimes normal driving at first before the warning returns.
Should I buy a 2016–2018 Citroën C4 1.6 Diesel Automatic?
Considering a 2016–2018 Citroën C4 1.6 Diesel Automatic? This guide explains the problems associated with this model and what to examine when viewing one. Condition, maintenance history and previous repairs matter, so judge the exact car on evidence rather than badge appeal.
At a glance
We have detailed information drawn from more than 2 billion data points and an extensive list of potential faults for this vehicle. Below is a sample of three. Run a bespoke report by entering your vehicle details to see the full list.
This guide explains the model. Your registration tells the real story.
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Common Citroën C4 (2016–2018) problems
EGR valve and airflow control faults
Flat acceleration, jerking, cutting out around mid revs, engine light, service light, or limp-home behaviour.
Coolant housing / thermostat / water outlet leaks
Droplets or staining around the right side of the engine bay, sweet coolant smell, or the level needing top-ups without obvious overheating.
Citroën C4 buying questions
Is a 2016–2018 Citroën C4 worth buying?
It can be, but only if the individual car backs it up. For the 2016–2018 Citroën C4 1.6 Diesel Automatic, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.
What common problems affect the Citroën C4 (2016–2018)?
The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.
What should I check before buying a Citroën C4?
Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.
A model guide is useful. A report on its registration is better.
The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.
Or enter the vehicle manually