# Diesel in the AdBlue tank Fleet | mobile help > Diesel in the AdBlue tank Fleet: Component risk. Mobile SCR help across Hampshire. Call 01293 248666. - URL: https://adblueinfuel.co.uk/diesel-in-the-adblue-tank/fleet/ - Focus: diesel in the adblue tank fleet - Updated: 2026-11-03 - Phone: 01293 248666 (Call-out from £89) - Publisher: AdBlue in Fuel — a service by Forecourt Assistance — Forecourt Assistance is a trading name of Fuel Fixer Ltd, company no 08520551, registered at Fairway House, Portland Road, East Grinstead, RH19 4ET, a company of Fuel Fixer International. --- ## Diesel in the AdBlue tank in Fleet Short answerDiesel in the AdBlue tank Fleet: diesel in the AdBlue tank is the severe direction of this mistake. Do not start the engine and do not let the dosing system run. Even a small quantity contaminates the whole SCR circuit. Call 01293 248666 for… A mobile technician covers Fleet and the rest of Hampshire. The job is quoted on the phone before anyone travels, and if it is not something that can be finished at the roadside you will be told that on the call rather than after arrival. Call 01293 248666 Call-out from £89 Tap for soundTap to call ## Diesel in the AdBlue tank Fleet — the severity verdict **Key facts** | Severity | Component risk Frequently needs SCR component work rather than a drain. Quoted before a technician travels. | What went where | Diesel in the AdBlue tank | Direction | Into the AdBlue tank | Typical cost | Call-out £89 to £199 · drain £199 to £1,999 | Time on site | About 90 minutes | Call-out | Call-out from £89 | Helpline | 01293 248666, 24 hours The call-out is £89 to £199. An AdBlue tank drain and flush is quoted on the phone before a technician travels. If the SCR system needs component replacement — dosing injector, pump, tank or catalyst — that is separate, and you will be told before any work starts. If this is a job we cannot fix at the roadside, we will tell you that on the phone rather than after we arrive. ## What to do right now in Fleet - Do not start the engine. The dosing pump runs on many vehicles as soon as the system is awake. - If it is already running, switch it off now rather than driving to a garage. - Do not top it up with AdBlue to dilute it. Dilution does not undo hydrocarbon contamination of the pump and lines. - Call 01293 248666 and say how much diesel went in and whether the engine has run since. ## Diesel in the AdBlue tank in Fleet — what is different locally Because the catchment around Fleet is spread out, the technician is routed on the nearest-available basis rather than from a depot, and you are given a realistic arrival window rather than an optimistic one. From Fleet the main-dealer options are limited by marque rather than by distance, so it is worth establishing on the call whether a reset is even needed. A mixed fleet around Fleet means a mixed set of failures: nozzle errors on the commercial side, bottle errors on the domestic side, and quality faults from bulk tanks on both. The honest comparison is the total: call-out, work, any parts, and the time the vehicle is standing. All four are discussed before travel. Because Hampshire sees sustained cold, the first thing to establish on a level warning in January is whether the fluid has simply not thawed yet. The geography affects arrival time and disposal, not the outcome; that is decided by the contamination direction and whether the engine was run. Frequently needs SCR component work rather than a drain. Quoted before a technician travels. Coverage runs across Hampshire on the same basis, with volume and disposal priced in before anyone sets off. **Local detail for Fleet** | Place | Fleet — town | County | Hampshire | Nearest cover | Gosport, Hartley Wintney, Havant | This problem | Diesel in the AdBlue tank — Component risk | Verdict here | Frequently needs SCR component work rather than a drain. Quoted before a technician travels. | Quoted | On the phone, before a technician travels ## Common questions ### What if my vehicle is already at a garage in Fleet? That is fine. The work is mobile, so it happens wherever the vehicle is standing — a forecourt, a yard, a driveway or somebody else's workshop. ### Do you charge extra to come out to Fleet? No. The Call-out from £89 is the same across Hampshire, and the job total is quoted on the phone before a technician travels rather than adjusted on arrival. ### Can I dilute it with more AdBlue? No. Diesel does not dissolve in AdBlue and it does not stop coating the pump internals and the injector because there is more fluid around it. Topping up adds cost to the drain. ## What customers say in Fleet 4.8 out of 5 from 2,190 Trustpilot reviews. The recurring theme in reviews is that nobody was made to feel stupid about it, which for a mistake like this matters more than people expect. The most common criticism is price, and it is published here rather than buried: the answer is the Call-out from £89, a quote before travel, and being told when a job cannot be finished at the roadside. ### Nearby GosportHartley WintneyHavant ### Other AdBlue problems in Fleet AdBlue tank drain in FleetPetrol in the AdBlue tank in FleetAdBlue in diesel in FleetAdBlue in the diesel tank in Fleet ### More about Fleet Fleet coverageHampshireDiesel in the AdBlue tank — the full guide ## Who you are dealing with Work booked through AdBlue in Fuel is carried out by Fuel Fixer Ltd, company no 08520551, registered at Fairway House, Portland Road, East Grinstead, RH19 4ET, trading as Forecourt Assistance and part of Fuel Fixer International, which is owned by Stockbridge Capital Holdings. Reference: DVSA — roadworthiness guidance. ## Across the Fuel Fixer network Forecourt AssistanceFuel FixerFuel Fixer AberdeenFuel Fixer DundeeFuel Fixer EdinburghFuel Fixer GlasgowFuel Fixer InvernessFuel Fixer PerthFuel Fixer ScotlandFuel Fixer StirlingMisfuel DoctorMotor ServicingWrong FuelWrong Fuel CarlisleWrong Fuel CumbriaWrong Fuel DarlingtonWrong Fuel DrainWrong Fuel DumfriesWrong Fuel DurhamWrong Fuel GatesheadWrong Fuel KendalWrong Fuel KeswickWrong Fuel MaryportWrong Fuel MiddlesbroughWrong Fuel NewcastleWrong Fuel PenrithWrong Fuel SunderlandWrong Fuel TeessideWrong Fuel WhitehavenWrong Fuel WorkingtondataStockbridge Capital HoldingsAdBlue in Fuel is a service by Forecourt Assistance, a brand of Fuel Fixer International, owned by Stockbridge Capital Holdings. The full group directory is at forecourtassist.co.uk/network.