--- title: Cossington: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/cossington-somerset/ location: Cossington county: Somerset latitude: 51.159340 longitude: -2.917160 service: AdBlue in a Diesel Tank updated: 2026-10-05 --- # Cossington: AdBlue in the Diesel Tank? Find Your Situation What to do about AdBlue in a diesel tank depends on one thing more than any other: if the motor has run since it went in. Not started so far? Then keep the vehicle that way, whether your car is — Cossington or Stawell. Phone 0333 366 0103 with your ignition and engine both off. In Cossington, such a case is typically drained and flushed where it stands. Pull over the minute you safely can then switch off, if it has already run. The job is bigger, but the first step is the same. Match what happened to a situation from the ones below, anywhere in Somerset you are. ## On a Cossington forecourt with AdBlue in a diesel Only at this point, bottle still in your hand, you realise that the cap you opened was the wrong one, there at the pump. Maybe you are at the Murco, perhaps at the Shell, possibly somewhere else around Cossington. The upshot: of all places to find out, this is the best. The AdBlue is inside the tank and nowhere else. Nothing has drawn it in. Next: avoid the urge to fire it up only to move away from the pump. Get the attendants to lend a hand pushing it into a bay, save the receipt, then ring us right there. Draining it right at the pump is possible when it can't be moved, since the equipment is explosion-proof. ## Cossington, at home: AdBlue in your diesel tank On the dash, a warning had shown for days. You bought a bottle, poured it in on the driveway, and only when you put the empty bottle in the recycling did you look a second time at the cap. It happens on driveways just off Walnut Lane as frequently as anywhere. Meaning? Provided your vehicle hasn't moved since, it's close to the pump case. On the floor of your tank sits exactly where AdBlue waits, since it will not mix with diesel — and a night going by makes nothing of the difference. Next: keys indoors, so nobody drives the car off at breakfast. After that, ring. Your driveway is where it is emptied, whether in Cossington or Chilton Polden. The pumps are quiet enough to use outside a house after dark. ## Cossington: drove off with AdBlue in a diesel? Lumpy running, smoke, falling power or a lit dashboard arrived a short way beyond the fill. Somewhere along Millmoot Lane or else on the road towards Wells — under 15 miles away. Put simply: the AdBlue has been sucked through the system. The injection pump and each injector see it as well on a bigger run, after the fuel filter and pipework have it. More driving, more restarts: further it goes. What to do: pull over where it's safe to do so and switch off. Leave by the next junction — not the services further along — if you're on the M5, under 3 miles from Cossington. No test restarts: clearing is not something AdBlue will do. Roughly how far did it go? Say so as you call. ## AdBlue in the wrong tank: hire, lease and company cars You've only had this car a week. The AdBlue filler sits right next to the diesel filler, which you didn't know, since your own car either has no AdBlue or keeps it somewhere else. Anyone, wherever around Somerset, might make it. The upshot: exactly as above, divided by if it ran, only with an added step. Plenty of rental and fleet agreements require the owner's sign-off before work. Next: ring the rental company or your fleet manager first, and then us — sorting it before we arrive is quicker. Hanging on for a reply at the car park at Bridgwater, or near St Mary? Keep the engine off throughout. ## Cossington: unsure whether it was AdBlue in your diesel tank? Honestly, the only answer might be that you think it did. Too light, that bottle; a trace of ammonia round your filler; no clear memory of which cap. Look familiar? A hurried stop by the gates of Woolavington Village Primary School, or a call to a friend in Knowle: both fits. The upshot: your motor is not harmed by some AdBlue spilled around the filler. If it's inside the diesel tank, though, it does. You cannot tell which by turning the key, and doing so would draw in any AdBlue that is in the tank. Next: act as though it got in, and leave the motor off. Tell us what you noticed on the phone. A clear tank checked counts as a better result than an already-run one drained. ## Cossington: what each AdBlue drain has in common Whichever situation you are in, this job starts the same way. Filling station, drive, Red Tile Inn's car park or a road by St Edward — the van comes to the vehicle, and three questions follow: which fluid, which quantity, and whether it ran. Those answers settle this work, and you hear our price on the phone, before anyone sets off. Draining your tank comes first, then a careful flush — more important after urea than after petrol, because crystals and corrosion will not clear on their own, no matter how long you wait. Clean diesel is put in once your filter is flushed or replaced, and your car is finally tested. Most unstarted vehicles are a half-hour job after the moment our engineers turn up. The final step is starting the engine. Before our engineers head off, it's tested to be sure it runs smoothly on fresh diesel. The whole job is done where your car is, and if it is spotted soon, lasting damage is very uncommon. Paying comes that day, never in advance. For the insurer, there is a VAT invoice plus a report from the engineer. Many insurance policies include misfuelling cover, and so it's worth checking yours while we're on the way. ## About Cossington, briefly Cossington is a small village in Somerset, situated inland at an elevation of around 40 metres, with detached housing being the predominant type of accommodation. Cossington lies near the villages of Chilton Polden, Woolavington, and Bawdrip, and is approximately 12 miles from the city of Wells. Cossington has a population of around 641 people and is located about 123 miles west of London. Cossington remains a quiet rural community with a strong sense of local identity. ## Cossington and Somerset: AdBlue drains across the area Throughout TA postcodes, the teams serving Cossington — a rural village — reach surrounding places as well, Woolavington and Bawdrip included. The location is quickest from a postcode that starts TA7 8. Centre of Cossington or a lay-by near Quarry Pits Plantation: wherever it sits, the vehicle never needs to move at all for this drain. Where it stands, that is where it gets cleared. Tricky to explain? By St Mary's Church or a county line? Asking beats guessing, so phone. ## Your scenario, in one line Not run yet: keep it off and call. Whichever line applies, Petrol in Diesel handles the rest on 0333 366 0103, across Somerset and within Cossington — after you stop, switch off and ring, if it's run.