--- title: Swan: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/swan-wiltshire/ location: Swan county: Wiltshire latitude: 51.334020 longitude: -1.766310 service: AdBlue in a Diesel Tank updated: 2026-10-02 --- # AdBlue in the Diesel Tank in Swan, and What to Do Next Has the motor run since the AdBlue got in? That one question settles almost everything about what comes next. Over in Kepnal or here in Swan, an unrun engine should stay unrun. Leave your engine and the ignition off then phone 0333 366 0103; it is generally a drain and a thorough flush, done where your car is around Swan. Pull over the moment it is safe then turn off, if it has been run. Step one stays unchanged, even if the work grows. Find the scenario below that matches yours, wherever in Wiltshire it happened. ## On a Swan forecourt with AdBlue in a diesel Only now, nozzle yet in hand, you realise that the cap you opened was the wrong one, right at the petrol pump. Be it Esso, another forecourt nearby or somewhere else around Swan, the case is identical. The upshot: of all places to find out, this is the best. Still in the tank, with nothing drawn onwards: that's where the AdBlue is. Freeing the pump is no excuse to start it — so don't get back in. Ask the staff to help you roll the car into a parking spot, keep the till receipt or the bottle, and phone us from the forecourt. Draining it right at the pump is possible if it cannot be shifted, since the equipment is explosion-proof. ## At home around Swan with AdBlue in the diesel tank The warning light had been on 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 again at the cap. Homes just off Swan Road are caught out as often as everywhere else. In short: if the car hasn't moved since, it's almost equal to spotting it at the pump. AdBlue does not mix with diesel; it sinks to the bottom of the tank and waits there. Overnight doesn't change that. What to do: leave the keys inside the house so no one moves the vehicle in the morning. Then ring. Out in Kings Corner or right here around Swan, the drain is done on your driveway. Even at night, our pumps are quiet enough for a driveway. ## Swan: drove off with AdBlue in a diesel? You filled up, set off, and a mile or two later the engine began to run unevenly, smoke, lose power or light up the dashboard. Green Drove, perhaps, or the route to Salisbury — a run of under 25 miles. The upshot: the system has drawn AdBlue in already. The injection pump and each injector see it as well on a bigger trip, once the filter and lines have had it. More miles, more starts: further it goes. Next: pick a sensible spot, pull in, and switch your motor off. Leave at the first junction — not the services further along — if you are on the M4, under 15 miles from Swan. Restarting it to check achieves nothing — AdBlue doesn't clear itself. Call us and say how far you drove. ## AdBlue in the wrong tank: hire, lease and company vehicles You've just had the car a week. On your own vehicle, AdBlue is missing or somewhere else. On this one, its inlet is just next to your diesel cap — a surprise to you. Anyone, anywhere around Wiltshire, might do the same. Meaning? Whatever applies above applies too — run or not — plus one extra step. Many hire and company contracts want the owner to approve work on the vehicle. Next: ring the rental company or your fleet manager first, then us — settling it before our arrival is quicker. If you are stranded in the car park at Pewsey, or by St John the Baptist, while you wait for an answer, leave the vehicle off. ## AdBlue in your diesel tank? Not sure, around Swan Truthfully, the best answer may be that you think it did. The bottle is lighter than it should be, there's a faint smell of ammonia about the filler, and you can't remember which cap you took off. Maybe on a friend's driveway in East Sharcott, or in a rush by Pewsey Primary School at the school run. What it means: a little spilled around the filler does no harm to your engine. If it's inside the diesel tank, though, that changes. You can't tell which by turning the ignition, and doing so would pull in any AdBlue that is in your tank. Your move: act as though it did, and don't start the motor. Inspecting a tank that turns out free of AdBlue beats draining one once it has been run — so ring and describe to us what you saw. ## The common ground in each Swan AdBlue drain Every case gets the same opening to the job. Our engineers come to your car, whether it's on a forecourt, a drive, the car park at The Coopers Arms or a side street near King Alfred, and ask three things: what was put in, about how much, and if the engine has been run. Those replies settle the work, and you get our quote by phone, before anyone heads out. Draining your tank comes first, followed by a careful flush — more important with urea than after petrol, because crystals and corrosion will not go on their own, however long you wait. Then comes the fuel filter — cleaned, or replaced where needed — then fresh diesel, and a test of your car. If the engine hasn't run, most jobs take about half an hour once we're there. The final step is firing it up. Our check that it runs smoothly on clean diesel comes before our technicians leave. The whole job is done where the vehicle is, and when it's noticed early, long-term damage is very unusual. Nothing is paid upfront, payment is made on the day, and you receive what your insurer wants: an engineer report plus a VAT invoice. It is worth remembering: many insurers offer misfuelling cover, and so a check of your policy as we travel is worthwhile. ## About Swan, briefly Swan is a suburban area situated on the riverside in Wiltshire, with an elevation of 111 metres. Swan lies near the villages of Kings Corner and Pewsey, and is approximately 18 miles from the city of Salisbury. Swan has a population of around 1689 people, predominantly living in semi-detached housing. Swan is also within commuting distance of London, being around 71 miles to the west of the capital. ## AdBlue drains about Swan and across Wiltshire Swan is a residential suburb, and the same teams that cover it work the towns near it too, Pewsey and Southcott among them, across the SN postcode area. The location comes quickest from a postcode that starts SN9 5. No towing is required, whether stopped in the centre of Swan or on a layby heading to The Schotchel, and so keep it where it is. The drain happens right there. If you are somewhere hard to explain, near Pewsey Scout Hut or close to a border, ring and ask rather than assuming. ## Your situation, in one line Still unrun? Leave the car that way and ring. Whichever line fits, Petrol in Diesel handles from there on 0333 366 0103, across Wiltshire and within Swan — after you stop, switch off then ring, if it's run.