AdBlue costs • UK pricing • Updated for 2025
AdBlue Repair Cost UK 2025: Complete Price Guide
Pump, sensor, tank and heater prices.
Why quotes vary so much.
How to avoid paying twice for the same problem.
Mobile across Leicestershire and nearby counties • Mon–Sun 09:00–20:00
You see an AdBlue warning and you expect a top-up.
Then a quote lands at £600, £900, sometimes more.
It feels out of proportion.
AdBlue repairs vary because the system has multiple failure points.
One fault can trigger three codes.
A rushed diagnosis can turn into a parts-swapping spiral.
If you want the quickest route to the cause, start with AdBlue problem diagnosis. One good diagnostic saves money more often than any discount ever will.
Why AdBlue repair can get expensive
These are the real-world reasons prices jump. They also explain why a dealer quote and a mobile quote can look miles apart.
- Tank and heater faults push cost up fast because access is harder and the job takes longer.
- Dealers often quote full assemblies (tank + pump + sensors) because it reduces comeback risk.
- Repeat failures happen when the symptom part gets replaced but the trigger stays.
- Crystals and contamination can mean a flush and clean, not just a part swap.
- Wrong diagnosis costs twice because labour adds up before the real fix starts.
- Vehicle design matters because some vans need more strip-down time to reach the system.
Dealer vs Mobile AdBlue repair
Same warning light.
Very different outcome depending on the approach.
| What you compare | Dealer approach | Mobile approach |
|---|---|---|
| Parts | Often replaces assemblies to minimise return visits | Targets the failed part after live data checks |
| Time off the road | Bookings and parts can stretch the downtime | Often same-day for common faults on work vans |
| Repeat fault risk | Lower if the whole unit is replaced | Lower when the root cause is confirmed and fixed |
Ask one question before you book.
“Are you replacing parts, or proving the fault first”
AdBlue repair cost at a glance
| AdBlue component | Typical cost | Time required | Long-term fix |
|---|---|---|---|
| AdBlue pump replacement | £400–£800 | 2–3 hours | Yes (often 5–7 years) |
| NOx sensor replacement | £300–£700 | 1–2 hours | Yes (often 5–7 years) |
| AdBlue heater replacement | £200–£400 | 1–2 hours | Yes (often 5–7 years) |
| AdBlue tank replacement | £600–£1,200 | 3–4 hours | Yes (often 5–7 years) |
| AdBlue injector/nozzle | £250–£500 | 1–2 hours | Yes (often 5–7 years) |
| AdBlue sensor | £150–£300 | 30–60 mins | Yes (often 5–7 years) |
| AdBlue delete (alternative) | £150–£250 | 60–90 mins | Permanent |
These are typical UK ranges. Your make, mileage, access to parts, and the real cause will move the price up or down.
AdBlue pump replacement cost: £400–£800
The AdBlue pump is a common failure on work vans.
When it stops delivering pressure, the whole SCR system looks “dead”.
Why pumps fail
- Crystals build up around the injector and lines, then the pump struggles.
- Winter stress pushes weak components over the edge.
- Contamination damages internals and blocks filters.
- Electrical faults stop the pump from priming or building pressure.
Typical pump repair costs by common vans:
- Ford Transit: £400–£600
- Mercedes Sprinter: £500–£800
- Peugeot Boxer / Citroën Relay: £400–£650
- VW Transporter: £450–£700
A good diagnosis confirms pressure and dosing before any part gets ordered.
That single step is how people avoid paying twice.
NOx sensor replacement cost: £300–£700
NOx sensors do two jobs.
They report emissions levels and confirm the SCR system is working.
When they fail, the ECU often assumes the worst. That is why you can see limp mode or countdowns even if the rest of the hardware is fine.
Common signs
- Emissions warning on the dash
- Limp mode or reduced power
- Fault codes that keep returning after clearing
Costs by make often land like this:
- Mercedes: £400–£700
- BMW: £350–£650
- VW/Audi Group: £300–£550
- Ford: £250–£450
Some people replace one sensor and then find the second one is also drifting.
Live data checks stop that surprise.
AdBlue tank replacement cost: £600–£1,200
Tank jobs feel expensive because they are labour-heavy.
Many tanks include heaters, sensors, and fittings as a single unit.
Why tank quotes jump
- Access can require moving undertrays and shields
- Some models need more strip-down time
- Heater or sensor faults inside the tank can force replacement
- Ford Transit: £600–£900
- Mercedes Sprinter: £800–£1,200
- Peugeot Boxer / Citroën Relay: £650–£950
Before a tank gets condemned, make sure the wiring and heater circuits get proved.
That single check can save the big bill.
AdBlue heater replacement cost: £200–£400
Heater faults spike in cold months.
When the heater fails, the system can crystallise and the faults cascade.
Common signs
- Cold weather warning messages
- No-start countdown after a frost
- Repeated faults that clear in warmer weather
If the heater fault is ignored, it can turn into pump and injector problems later.
That is where costs jump.
Repair vs delete: how people decide
People do not choose based on price alone.
They choose based on downtime, repeat faults, and what the van is worth.
Repair often suits you if
- Your van is newer and you want everything kept stock
- This is the first major AdBlue issue you have had
- The fault is clearly proven and contained to one part
People look at alternatives when
- Faults keep returning after parts have been replaced
- You have had multiple countdown events
- Downtime is costing you more than the repair itself
If you are comparing options, read AdBlue delete legal UK before you decide anything.
Want a quote that matches the real fault?
Tell us the warning message and any fault codes.
We will give you a clear route forward and a price range that makes sense.
