--- title: AdBlue in a Diesel Tank Well Head: What Now canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/well-head-wiltshire/ location: Well Head county: Wiltshire latitude: 51.093620 longitude: -2.270380 service: AdBlue in a Diesel Tank updated: 2026-10-26 --- # AdBlue in the Diesel Tank in Well Head: What Now? One thing counts most when AdBlue is in a diesel tank, and that is if your engine has been started since. Wherever your vehicle is — Southbrook, Well Head — don't run an engine that hasn't been started yet. Leave your motor and the ignition off and ring 0333 366 0103; it's normally a drain and a thorough flush, done where the car is around Well Head. If it's run, stop as soon as it is safe and switch off. It is a bigger job, though stage one does not change. Match your case to one of the ones below, wherever around Wiltshire you happen to be. ## At the pump around Well Head: AdBlue in a diesel You are at the pump, the nozzle or the bottle still in your hand, and you have just noticed the cap you opened was the wrong one. It might be the Gulf, or the Esso, or a different forecourt in Well Head. The point: of all places to notice, this is the best. Just your tank holds AdBlue; no part past it has taken any in. Freeing the petrol pump is no excuse to run it — and so do not get back in. Ring us from the forecourt after your car sits in a space — the staff will lend a hand to push it — and keep the receipt. Stuck beside the petrol pump? Explosion-proof kit keeps a busy forecourt sensible, so we can drain it where it is. ## Well Head, at home: AdBlue in your diesel tank Days had gone by with the dash light on. Picked up a bottle, poured it in at home, recycled the empty — and only then checked the cap again, after the fact. Homes just off North Road are caught out as often as anywhere else. What it means: if you have not driven since, this is nearly as good as the forecourt. As it is unable to blend, AdBlue settles to the base in your tank and waits. A night standing alters none of that. Next: prevent an early-morning move by keeping your keys in the house, then ring us. Mere or Well Head: wherever your driveway is, that's where it is cleared. The pumps are quiet enough to use outside a house at night. ## On the road in Well Head with AdBlue in a diesel Topped up, pulled away, and before long your engine was turning roughly, smoking, losing power, or flashing up the dash. Manor Road, say, or the route towards Wells — a run of under 25 miles. The point: the system has pulled AdBlue in already. The injection pump and every injector see it as well on a bigger run, once your filter and pipework have had it. More driving, more restarts: deeper it travels. Next: find a safe spot, stop, and switch the engine off. Exit at the first junction — not the services further along — if you are on the M4, under 50 miles from Well Head. Starting it again to check gets nothing — AdBlue never clears itself. Call, and say how far the vehicle went. ## A hire or company car with AdBlue in the wrong tank? It is a vehicle you have had for a week. On your own car, AdBlue is missing or elsewhere. On this one, its inlet is right next to your diesel cap — a surprise to you. Anywhere you happen to be around Wiltshire, any motorist could be caught. Meaning? Whichever applies above applies too — run or not — plus one extra step. The owner often needs to sign off any work, under many rental and fleet agreements. Next: ring the hire company or the fleet manager first, and then us — settling it before our arrival is quicker. If you're stranded in the car park outside Gillingham (Dorset), or by Mere Castle, while you wait for an answer, leave the vehicle off. ## Well Head: unsure whether it was AdBlue in your diesel tank? "I think so" is often the most honest answer there is. What cap came off, you can't say; meanwhile the bottle weighs less than it ought to, and a whiff of ammonia hangs by your filler. Perhaps it happened in a hurry at the school gates at Mere School, or on a friend's drive in Rook Street. What it means: a little spilled about the filler does no damage to your motor. Inside your diesel tank, however, AdBlue damages it. If there is AdBlue in the tank, firing up your car would suck it in, and it would not tell you which either. What to do: treat it as if it was put in. Don't start the vehicle. Checking a tank that proves free of AdBlue is better than emptying one after it's been run — so ring and describe to us what you saw. ## The common ground in each Well Head AdBlue drain Whichever scenario you are in, this job starts the same way. Forecourt, driveway, Butt of Sherry's car park or a street beside Castle Hill — our van comes to the vehicle, and three answers follow: what fluid, which quantity, and whether it has run. Your price comes on the call, ahead of anyone setting off, and the replies set the work. A thorough flush comes after this drain. With petrol it is routine; with AdBlue it's crucial, because crystals build up and some metals are attacked, and neither rinses out unaided. Clean diesel goes in after your filter is cleaned or replaced, and the car is finally checked. Where the engine hasn't been started, expect roughly half an hour on site, for most jobs. The last step is starting the car. Before we leave, it's checked to be sure it runs smoothly on clean diesel. The whole job is done where your car is, and if it is caught quickly, long-term damage is very unusual. Nothing is paid upfront, payment happens on the day, and you get what your insurer wants: an engineer report plus a VAT invoice. Many insurance policies include misfuelling cover, so it is worth checking yours while we're on the way. ## About Well Head and where it is Well Head is a suburban area situated on the riverside in Wiltshire, with a mix of semi-detached housing and other residential properties. Well Head sits at an elevation of 112 metres, near the towns of Mere and Wells, and is part of the wider South West region of England. Well Head is located approximately 96.9 miles from London, and its riverside setting provides a distinctive character to the area. Well Head has a population of around 2075 residents, living in a variety of semi-detached homes and other dwellings. ## AdBlue drains across Wiltshire, Well Head included Being a residential suburb, Well Head shares its vans with the nearby places — Towns End, Ivy Mead — right through BA postcodes. The whereabouts comes quickest from a postcode beginning BA12 6. Stopped heading to Chaddenwick Wood, or bang in the heart of Well Head, the car remains where it is — there is no need to shift it at all. Wherever it stands, that's where it is emptied. Assuming doesn't help beside Sir Winston Churchill, on a county line or somewhere hard to describe; ring and check. ## In one line: your scenario Unstarted? Leave it off then phone. Run already? Pull over, turn off, ring. Petrol in Diesel takes over the rest whatever case, in Well Head and Wiltshire, on 0333 366 0103.