--- title: Cannington: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/cannington-somerset/ location: Cannington county: Somerset latitude: 51.151180 longitude: -3.060960 service: AdBlue in a Diesel Tank updated: 2026-10-22 --- # Preventing AdBlue in a Diesel Tank in Cannington: Why It Occurs Stop reading for a moment when the diesel tank already has AdBlue in it: ignition off, motor off, and phone 0333 366 0103. Caught before your engine runs, it is generally a drain and a thorough flush, done where your car is in Cannington. Not happened yet? Further down, the page covers the why it takes place and the ways to prevent it altogether. ## Two fillers, two tanks: AdBlue in a diesel car No single fluid but two: that's what plenty of newer diesels around Cannington and Knoll Green carry, with diesel feeding the engine. Your exhaust, not your motor, is where AdBlue goes: dosed into the fumes to clean them, from its own tank. Every tank comes with a filler of its own. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. Diesel goes in on every filling station call-out, week in, week out. Much less often, the AdBlue side is filled — normally from a bottle, by a person thinking about where it goes. The mistake grows in the gap between the two. ## Cannington: how AdBlue in the diesel tank occurs Carelessness seldom causes it. Instead is three things lining up at once. On a drive off Brook Street before work, or in the car park at The Friendly Spirit on the way home: that is where the rushed top-up happens. Why the rush? As AdBlue runs low the vehicle tells you, and if it's gone, limp mode follows. New-to-you vehicles come next, as well. Rentals, new motors and company motors place their fillers differently, and the hand goes for the cap it used on the old one. Third, the spout fits: diesel filler or AdBlue one, it goes in just as easily, and after the pour begins, no part halts it. The same few seconds settle it, in the middle of Cannington or out in Bradley Green. ## Telling the AdBlue filler from the diesel filler Before you pour anything, whether on a drive in Edbrook or a forecourt in Cannington, check these. They take a few seconds. - Blue and lettering: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap normally does not. Trust the cap, not where it sits. - Many vehicles fit AdBlue the smaller filler of the two. - The flap. Look inside the fuel flap for a label. Plenty of vehicles say there which fuel goes where. - The handbook shows which it lives when your filler isn't next to the diesel cap: the boot, or under the bonnet. - Check with the person who drove it last — before you leave, not when the light comes on — when you collect a hire or company car from somewhere like the car park at Bridgwater. ## Keeping AdBlue out of your diesel tank when you top up The day the light goes on, anywhere in Somerset, use this routine. - Park then switch off. Not on a slope, not with the motor running, and not in a rush on the side of East Street. - Say "AdBlue" out loud as you unscrew the cap, after finding the AdBlue filler and read it. Daft, perhaps, but it works. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave it on. - Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty. - Only then, start the vehicle: close the cap, check once more, and make sure the diesel cap was never opened. Spot at step two or three that it's already gone into your diesel side? Then stop just there. Step five is off limits. ## Already put AdBlue in your diesel tank around Cannington? Don't start the motor: that is where the short order of things starts. Don't switch your ignition on; on many diesels that alone runs the fuel pump. Thinning it with extra diesel fails, since AdBlue sinks to the base instead of blending — and that is where the fuel is drawn from. Ask the staff to help roll the car away from the pump if you're at a forecourt — the Shell, the Pace or somewhere else. On your own drive in Cannington? So the vehicle stays where it is. When the motor has run by now, pull over somewhere safe and turn the vehicle off. Come off the M5 — under 5 miles out of Cannington — at the first exit. Roughly how far did it go? Crossing Cannington is less a job than a run of under 25 miles to Wells, and so say. ## Cannington: what occurs when we arrive The van comes to your car wherever it stopped — your own driveway, beside The Walled Gardens of Cannington, or outside Cannington Church of England Primary School. Both the work and our quote rest on three replies — what liquid, what amount, and if it's run — so our technicians ask. That price is given on the call, before any van leaves. Draining that tank comes next, followed by a full flush of your system. More than with petrol, it counts with AdBlue: the crystals form, certain metals are attacked, and nothing washes out unaided, however long it is left. Once the fuel filter is flushed — or renewed, where required — fresh diesel goes in, and then the vehicle is tested. Then we fire it up and make sure it runs properly before we go. Unrun cars usually mean a half-hour visit from arrival. The kit is safe on a busy forecourt, and quiet enough for a driveway late at night. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Plenty of insurance policies include misfuelling cover, so it is worth checking yours while we are on the way. ## About Cannington itself Cannington is a village in Somerset, situated on the riverside at a low elevation of around 12 metres. Cannington lies near several other small settlements, including Bradley Green, Perry Green, and Gothelney Green, and is approximately 18 miles from the city of Wells. Cannington has a population of around 1753 people, predominantly living in semi-detached housing. Cannington is located in the South West region of England, about 129 miles west of London. ## AdBlue drains across Somerset, Cannington included Throughout TA postcodes, the teams that cover Cannington — a village — work the nearby places too, Gothelney Green and Perry Green included. A postcode starting TA5 2 gets our van to you fastest. Your car stays where it is. The drain happens right there, whether a drive, a road near Cannington Parish Hall, or a layby towards The Walled Gardens of Cannington. Tricky to pin down, like the back of St. Mary's Church? Close to a county line? Checking is better than guessing, so ring. ## Cannington motorists: the short version Before you tip, read the cap. AdBlue in your diesel tank after all? Keep the vehicle switched off then ring 0333 366 0103; Petrol in Diesel empties it on the spot, across Somerset.