Need expert AdBlue tank repair for your Peugeot or Citroen? You’ve come to the right place!
At CCM, we understand the frustration of AdBlue system faults. Supporting certain models of Peugeot and Citroen vehicles, we offer comprehensive AdBlue tank servicing, repair, and replacement to get you back on the road quickly and efficiently.
Our skilled technicians are equipped to diagnose and resolve complex AdBlue issues, often saving you significant costs compared to main dealer replacements.

When an AdBlue system malfunctions, the vehicle’s onboard diagnostics will detect it. Due to strict emissions laws, if the system isn’t functioning correctly, the car will usually enter a “limp mode” (reduced power) and eventually prevent restarting once the mileage countdown reaches zero, to ensure it doesn’t run without proper emissions control.
Common Reasons for AdBlue System Failures
This is one of the most common problems. If AdBlue is exposed to air, or if the exhaust gas temperatures are not consistently high enough, the urea in the solution can dry out and form solid crystals. These crystals can:
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- Block the AdBlue injector, preventing the fluid from being sprayed correctly.
- Clog pipes and filters within the AdBlue tank unit.
- Foul the level sensor within the tank, leading to inaccurate readings (e.g., showing empty even after refilling).
- Impact the AdBlue pump, causing it to fail.
AdBlue must be kept pure. If other fluids (like diesel fuel, oil, or even tap water) or dirt enter the AdBlue tank, it can contaminate the solution. Contaminated AdBlue can damage various components of the SCR system and render it ineffective.
The pump within the tank is crucial for delivering the fluid to the exhaust system. Some systems have a separate pump that can be replaced.
Incorrect readings can trigger warnings even if the tank is full.
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- AdBlue Level Sensor: If this sensor fails or gets stuck due to crystallisation, the vehicle might think the tank is empty even when it's full, triggering warnings and potentially a countdown to non-start.
- NOx Sensors: These sensors monitor the effectiveness of the SCR system. If a NOx sensor fails, the vehicle's ECU may detect an emissions fault, leading to warning lights.
AdBlue can freeze in cold temperatures, and the heater prevents this; if it fails, the system won't work.
AdBlue is mostly water and freezes at approximately -11°C (12.2°F). While modern vehicles have heating systems within the AdBlue tank and lines to prevent this, a failure in this heating system can lead to frozen AdBlue, preventing the system from functioning.
Incorrect coding after a replacement can prevent the system from operating.
Sometimes, the fault might lie with the vehicle's engine control unit or require specific software resets/coding after a component replacement.
Sometimes, manufacturer software updates can resolve known AdBlue system glitches.
Putting AdBlue into the diesel fuel tank (or vice-versa) is a costly mistake. AdBlue in the fuel system can cause severe corrosion and damage to fuel pumps and injectors.
Citroen Berlingo AdBlue Tank Replacement
For a Citroen Berlingo, particularly the models with the BlueHDi engines (which use AdBlue), the AdBlue tank replacement time generally falls within the common range for PSA (Peugeot-Citroen) group vehicles.
Given that the Berlingo (and its sibling, the Peugeot Partner) commonly integrates the pump, level sensor, and sometimes the heating element into the tank assembly, a failure often necessitates replacing the entire unit.
You should anticipate a labour time of between 2 to 4 hours for a full AdBlue tank replacement on a Citroen Berlingo, but this may differ by age and condition of the vehicle..
This timeframe typically includes:
Initial Diagnostics: Confirming the tank unit is the fault.
Draining: Safely removing any remaining AdBlue fluid.
Removal: Disconnecting and unmounting the old tank (which can sometimes be tricky depending on its location under the vehicle).
Fitting: Installing the new or reconditioned tank.
Refilling: Adding fresh AdBlue.
System Reset & Coding: Crucially, programming the new tank unit to the vehicle’s ECU and clearing fault codes. This step can sometimes be the most time-consuming if there are persistent communication issues or if the system is reluctant to reset.
Which vehicles can we help with?
CCM is your first stop for Peugeot & Citroen AdBlue servicing.
Our technicians have in-depth knowledge and experience with these specific marques. At CCM, we offer a more affordable and environmentally friendly solution: we stock and supply high-quality reconditioned Peugeot and Citroen AdBlue tanks. Our reconditioned tanks are meticulously tested and refurbished to meet stringent quality standards, providing a reliable and cost-effective alternative to a brand-new unit. By choosing a reconditioned tank, you benefit from significant savings without compromising on quality or performance.
Why are refurbished tanks a more efficient option?
The Cost of a New Tank
Main dealers often quote over £2000 for a brand-new AdBlue tank replacement due to the complex nature of the unit and the associated labour.

A new AdBlue tank will also typically require coding to your vehicle’s Engine Control Unit (ECU) to ensure it communicates correctly and functions seamlessly with your car’s sophisticated systems. This coding requires specialist diagnostic tools and expertise.
Why Choose CCM for Your AdBlue Tank Repair or Replacement?
- Cost-Effective Solutions: We prioritise repair and reconditioned parts where possible, saving you money.
- Advanced Diagnostics: We use dealer-level diagnostic equipment for accurate fault finding and coding.
- Quality Parts: Whether new or reconditioned, we ensure all parts meet high standards.
- Fast Turnaround: We work efficiently to get your vehicle back on the road with minimal disruption.
- Free Replacement Vehicle: Subject to availability, we can provide a courtesy car during repairs.
Very good service. The waiting room is comfy with proper tea and coffee making facilities. This has to be the cleanest garage I have ever visited !
The price was competitive and everyone was so friendly and helpful. Highly recommend
I have used CCM Ewhurst for many years and always found them to be very professional, understanding and courteous. Recently, after a challenging repair the situation was resolved in a fair, amicable way. I highly recommend them
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CCM Gatwick continue to go above and beoynd for me and my many rubbish cars. They always give me a fair assessment and help me to find the best solution, often dealing with external partners when they wouldn't normally need to in order to get things fixed to the highest standard. I really can't fault them, wouldn't take my cars anywhere else!
I had gone to them to change the chain, but it was not necessary, my car just had no oil, for which I thank the whole team. I am very happy with the CCM garage. It's 30 miles from us, but it's worth it. Thanks again to the mechanic as well.
I needed help on a warning light and took the car to CCM. They quickly diagnosed the fault ordered the part required and fixed the fault. The service was very good with friendly staff and the repair was arranged quickly at a competitive price. I will certainly use CCM again in the future.
From the point at which it was collected from my home in the morning to its return mid afternoon I cannot fault the service I received. I was informed by phone when my car was ready, the cost and advised about replacement of one of the tyres at a future date. Staff were friendly and polite. I will be using again.
As always, thoroughly professional, great job, friendly with a fair price. Been using them now for a number of years and cannot speak highly enough. Never feel fleeced or had over, keep up the good work.