--- title: Heath End: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/heath-end-surrey/ location: Heath End county: Surrey latitude: 51.238000 longitude: -0.787120 service: AdBlue in a Diesel Tank updated: 2026-10-07 --- # Heath End: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It? AdBlue already in the diesel tank? In that case set this page aside a moment, keep the ignition and engine off, then call 0333 366 0103. A drain plus a full flush, carried out just where your vehicle sits around Heath End, is usually all it needs if found before your motor runs. The remainder of this page explains why it happens and how to ensure it doesn't — handy if you are reading before it has happened. ## Why does AdBlue in a diesel vehicle need its own filler? No single liquid but two: that's how plenty of newer diesels around Heath End and Hog Hatch carry, with diesel for the motor. Kept in a tank of its own, AdBlue is sprayed into the exhaust gas and cleans it. Each tank has its own filler. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. At the petrol pump, the diesel side gets filled constantly. Seldom filled, AdBlue normally goes in from a bottle, poured by someone who must stop and think what cap to use. It is in that gap that the slip lives. ## How does AdBlue in your diesel tank occur around Heath End? Rarely is it carelessness: normally three things line up. The warning comes first. As AdBlue runs low the vehicle tells you, and if it runs out altogether, the vehicle drops into limp mode. So the top-up is done in a hurry: on a driveway off Wellington Lane before work, or in the car park outside Royal Arms on the way home. New-to-you motors come next, as well. Rentals, new cars and company vehicles put their fillers differently, and habit goes for the cap it used on the old one. Lastly, the bottle goes in: a diesel filler or AdBlue filler, it goes in just as easily, and once the pour starts, nothing halts it. The same few seconds settle it, in the middle of Heath End or out in Weybourne. ## The AdBlue filler and your diesel filler: telling them apart Before you pour anything, whether on a driveway in Badshot Lea or a forecourt around Heath End, check these. They take a couple of seconds. - Position can mislead; the cap does not. AdBlue ones tend to be blue or bear the name "AdBlue" — diesel caps usually do not. - Many vehicles give AdBlue the smaller filler of the two. - The flap. Look inside the fuel flap for a label. Many vehicles say there which fuel goes where. - In the boot or under the bonnet: that's where the filler is if it is not by the diesel cap, and the handbook tells you which. - Collecting a hire or company car, say at the car park at Aldershot? Check with the person who drove the car last before leaving, not once the light comes on. ## AdBlue top-ups that never reach the diesel tank A routine for the day the light comes on, wherever in Surrey that is. - Not in a rush on the side of Farnborough Road, not on a slope, not with your engine running: park and switch off first. - Find the AdBlue filler, check the cap, and speak the word "AdBlue" aloud while you unscrew it. It seems daft. It does the trick. - The two under a single flap? So confirm the cap on your diesel filler stays shut before raising the bottle. - Using the bottle's own spout, pour slowly — and stop when it's full or the bottle is empty. - Shut the cap, then look again — confirm the diesel filler stayed shut the whole time. Only then, start your car. Stop there if you find, at stage two or three, that you have already poured into the diesel side. Step five is off limits. ## Already put AdBlue in your diesel tank around Heath End? Brief order, then. Top of that: the motor stays off. Don't switch your ignition on; on plenty of diesels that alone runs the fuel pump. Thinning it with more diesel won't work, because AdBlue sinks to the base instead of mixing — and that is where your fuel is pulled from. The staff at Valero, BP or another forecourt will usually help to push the car away when you ask. If you're on your own drive in Heath End, leave the vehicle where it stands. When your motor has been run by now, pull over safely and switch it off. On the M3, under 5 miles from Heath End, that means the next junction. Roughly how far did it go? Hopping across Heath End is smaller a job than a trip of under 50 miles towards Winchester, so say. ## Our arrival around Heath End, and what takes place next Our van comes to the vehicle wherever it has come to rest — your own driveway, near Holy Family, or by William Cobbett Primary School. The replies decide this work and our quote, so our technicians ask what got in, roughly how much, and if it has run. During the call itself, you are told the price — before dispatch. Your system is then cleaned thoroughly, after the tank is cleared. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own — which is why that counts more with AdBlue than with petrol. The filter is flushed, or replaced where it needs to be; fresh diesel goes in; and the vehicle is tested. Next our engineers start the car and check it runs correctly before leaving. Using pumps fine on a busy forecourt and quiet enough to use outside a house at night, most jobs in which your engine has not run take about half an hour once we arrive. Nothing in advance; you settle up on the day. At the end, the VAT invoice and the report from the engineer go to you for the insurer. Many insurance policies include misfuelling cover, and so it's worth checking yours while we are on the way. ## About Heath End itself Heath End is a village in Surrey, situated on the shores of a lake at an elevation of 127 metres. Heath End has a population of around 2297 people and is characterized by predominantly detached housing. Heath End is located near other villages such as Weybourne, Upper Hale, and Hale, and is within commuting distance of London, being approximately 34 miles away. Heath End benefits from its rural setting, with nearby city links to Winchester, about 25.8 miles away. ## AdBlue drains in Heath End and across Surrey As a village, Heath End has the same vans as surrounding places — Upper Hale, Hale — right across GU postcodes and the wider area around them. A postcode starting GU9 9 gets our van to you fastest. There's no need to move the car. A driveway, a lay-by on the way to Heath End Recreation Ground, a side street close to Bethel Baptist Church Main Hall: we drain the vehicle where it stands. If you're close to a boundary, or somewhere hard to explain like the back of Hale Methodist Church, ring and ask rather than assuming. ## In short, for Heath End drivers Tip nothing till you have read the cap. Even so AdBlue in your diesel tank? Petrol in Diesel will empty it wherever it stands, anywhere in Surrey: keep it off then phone 0333 366 0103.