Most Euro 6 light commercials — Transit Custom EcoBlue, Partner BlueHDi, Transporter SCR and similar — carry an AdBlue tank and selective catalytic reduction (SCR). AdBlue is injected into the exhaust so NOx is converted over the catalyst. The ECU watches tank level, pump pressure, injector duty, heaters and NOx sensors.
Short Bournemouth and Poole rounds, cold starts and low-quality fluid accelerate crystallisation in tanks and lines. A genuine empty tank can clear after a top-up. A dead pump, failed NOx sensor, crystallised dosing injector or heater that never comes on will not — and the van then starts a remaining-starts countdown that ends in a no-start mid-week.
Dealer quotes for pumps and sensors commonly run from several hundred to well over a thousand pounds, with parts waits that leave a trade van parked. That is when fleets search for van AdBlue delete Dorset or Transit Custom AdBlue repair options instead of another overnight off the road.








