2019 Citroën C5 Aircross 1.5 BlueHDi – P20EE AdBlue Fault
A customer contacted AdBlue Team after the AdBlue countdown on their 2019 Citroën C5 Aircross 1.5 BlueHDi had completely run out. Once the countdown reached zero, the vehicle could no longer be started normally.
Our mobile technician attended the vehicle and completed a full diagnostic assessment. Testing identified the P20EE fault code, which relates to the performance of the vehicle’s Selective Catalytic Reduction system.
Citroën C5 Aircross P20EE AdBlue Fault
The P20EE fault is associated with AdBlue and SCR system problems. Depending on the underlying issue, it can cause an emissions warning, engine-management light or a decreasing mileage countdown.
On this Citroën C5 Aircross, the countdown had already expired and the vehicle had reached its non-start state. Clearing the stored code alone would not address the underlying issue.
Full AdBlue Diagnostic Assessment
Before carrying out any software work, we completed a full diagnostic check of the Citroën’s engine-management and AdBlue systems.
This allowed us to:
- Confirm the stored P20EE fault code
- Assess the AdBlue and SCR system status
- Establish why the starting countdown had been activated
- Check for additional related diagnostic trouble codes
- Determine the software solution for the vehicle
Completing a proper diagnosis first is important because AdBlue warning messages can be caused by several different components or system conditions.
Citroën C5 Aircross AdBlue Software Delete
Following the diagnostic assessment, we carried out a full AdBlue software delete on the vehicle’s engine control unit.
The relevant ECU software was professionally modified and the associated AdBlue fault data was addressed. The vehicle was then checked again to confirm that the software procedure had been completed successfully.
The entire job—including diagnostics, software work and final checks—was completed in approximately one hour.
Job Summary
- Vehicle: Citroën C5 Aircross
- Year: 2019
- Engine: 1.5 BlueHDi diesel
- Reported problem: AdBlue countdown had expired and the vehicle would not start
- Diagnostic fault code: P20EE
- Work completed: Full diagnostics and AdBlue software delete
- Job duration: Approximately one hour
- Service type: Mobile AdBlue delete
Mobile Citroën AdBlue Delete Service
AdBlue Team provides a mobile AdBlue delete service for Citroën vehicles and other diesel cars, vans and commercial vehicles throughout the UK.
Our technicians bring the required diagnostic and ECU programming equipment directly to the vehicle. This is particularly useful when an AdBlue countdown has expired and the vehicle cannot be driven normally.
Experiencing a P20EE fault, AdBlue warning or no-start countdown on a Citroën C5 Aircross?