--- title: AdBlue in a Diesel Tank Odcombe? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/odcombe-somerset/ location: Odcombe county: Somerset latitude: 50.936960 longitude: -2.703090 service: AdBlue in a Diesel Tank updated: 2026-10-14 --- # How It Happens and How to Prevent It: AdBlue in a Diesel Tank in Odcombe Stop reading for a moment when the diesel tank already has AdBlue in it: ignition off, engine off, then ring 0333 366 0103. A drain and a full flush, done right where your vehicle sits around Odcombe, is normally what it needs when found before the engine runs. If you are reading before it has happened, the remainder of this page is about why it occurs and how to make sure it doesn't. ## AdBlue in a diesel motor, and its separate tank Not one fluid but two: that's what plenty of modern diesels near Odcombe and Alvington carry, with diesel feeding your engine. Stored in a tank of its own, AdBlue is fed into the exhaust stream and cleans it. Each tank has its own filler. Many of vehicles have a single flap for both, while some put the AdBlue filler to the boot or under the bonnet. The diesel side is topped up at the pump all the time. Much less regularly, the AdBlue side is filled — mostly from a bottle, by someone working out where it goes. The slip lives in that gap. ## Odcombe: how AdBlue in your diesel tank happens It is hardly ever carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low your car tells you, and if it runs out altogether, your vehicle goes into limp mode. So the top-up is done in a hurry: on a driveway off Coryate Close before work, or in the car park at The Mason's Arms on the way home. Then, the hand reaches for the cap it knew on the old car — since a hire car, a new motor or a company car places the fillers where your last one did not. A spouted bottle meets no obstacle at a diesel filler any more than at an AdBlue one. So the tip, once begun, keeps on. The same few seconds decide it, in the middle of Odcombe or out in Lower Odcombe. ## Telling the AdBlue filler from the diesel filler Whether a Odcombe forecourt or a driveway out in Lufton, take a couple of seconds on these before any is poured in. - Where it sits can mislead; the cap doesn't. AdBlue caps are often blue or bear the name "AdBlue" — diesel ones usually don't. - Many motors fit AdBlue the smaller neck of the two. - The flap. Look inside your fuel flap for a label. Plenty of motors say there which fuel goes where. - The handbook. If your filler is not by the diesel cap, it's in the boot or under the bonnet, and the handbook says which. - Check with the person who drove it last — before you leave, not when the light comes on — if you pick up a hire or company car from somewhere like the car park outside Yeovil Pen Mill. ## Keeping AdBlue out of your diesel tank when you top up The day the light comes on, anywhere around Somerset, follow this routine. - Park and switch off. Not on a slope, not with your engine running, and not in a rush on the side of Street Lane. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it does the trick. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave the car on. - Using the bottle's own spout, tip slowly — and stop when it is full or the bottle is empty. - Before starting the car, shut the cap and check again that your diesel cap was never came off. If at step two or three you find you have already poured into your diesel side, stop there. Never carry on to step five. ## Already put AdBlue in the diesel tank around Odcombe? Do not start the motor: that's how the short order of things begins. Don't switch your ignition on; on plenty of diesels that alone runs the fuel pump. AdBlue does not mix with diesel — it sinks to the bottom of that tank, where your fuel is sucked from — so don't top up with diesel to dilute it. If you are at a forecourt, whether it's the Murco or the Asda, ask the attendants to help roll the car away from the petrol pump. Leave it where it is if you are on your own drive around Odcombe. If your motor has already run, stop as soon as it is safe then switch off. On the M5, under 25 miles from Odcombe, that means the next exit. Roughly how far did it go? Hopping across Odcombe is smaller a job than a run of under 25 miles towards Wells, so tell us. ## When our engineers turn up in Odcombe, what occurs? Outside All Saints Church School, near St Peter & St Paul or on your own driveway: wherever the car has stopped, we come to it. Those answers settle this work and the price, so our technicians ask what went in, roughly how much, and if it has run. That price comes over the phone, before any van leaves. Draining the tank comes next, followed by a thorough flush of your system. Much more than with petrol, it counts with AdBlue: the crystals build up, some metals are attacked, and nothing washes out unaided, no matter how long it is left. After the filter is cleaned — or replaced, where needed — fresh diesel is added, and then the car gets tested. We don't leave until it has been started and is running properly. Most jobs are done in roughly half an hour once our technicians arrive, as long as your engine has not run — and the pumps we use are safe on a busy forecourt yet quiet after dark outside a house. Nothing upfront; you settle up on the day. At the end, a VAT invoice and a report from the engineer go to you for your insurer. Plenty of insurance policies include misfuelling cover, so it's worth checking yours while we are on the way. ## About Odcombe itself Odcombe is a rural village in Somerset, situated inland at an elevation of 117 metres, with detached housing being the predominant type of accommodation. Odcombe lies near several other small settlements, including Lower Odcombe, Brympton dEvercy, and Montacute, and is approximately 18.9 miles from the city of Wells. Odcombe has a population of around 744 residents and is located about 118.2 miles west of London. Odcombe remains a quiet, residential community with a strong sense of local identity. ## AdBlue drains around Odcombe and across Somerset Being a rural village, Odcombe shares its vans surrounding places — Brympton dEvercy, Montacute — right across BA postcodes and the wider area around them. Give a postcode that starts BA22 8, and our van gets there fastest. There's no need to shift the vehicle. Anywhere it sits — beside Odcombe Village Hall, in a lay-by en route to Doble Farm, on a drive — that is where it is emptied. Awkward to explain, like the back of St Andrew? Close to a border? Checking is better than guessing, so phone. ## In short, for Odcombe people Read the cap before you tip. Petrol in Diesel drains it where it stands, anywhere across Somerset, if AdBlue has gone in the diesel tank regardless — so leave the vehicle off and phone 0333 366 0103.