--- title: Ardsley: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/ardsley-south-yorkshire/ location: Ardsley county: South Yorkshire latitude: 53.547620 longitude: -1.431820 service: AdBlue in a Diesel Tank updated: 2026-10-10 --- # Preventing AdBlue in a Diesel Tank in Ardsley: Why It Happens AdBlue already in your diesel tank? In that case set this page aside a moment, leave the ignition and motor off, then call 0333 366 0103. Normally, when the motor hasn't turned, it is drained and fully rinsed where your vehicle sits in Ardsley. Here before the event? In that case what follows explains how it happens and how to prevent it ever happening. ## Two fillers, two tanks: AdBlue in a diesel motor No single liquid but two: that's what plenty of modern diesels near Ardsley and Low Laithes carry, with diesel feeding the engine. Stored in a tank of its own, AdBlue is sprayed into the exhaust stream and cleans it. Different tanks, different fillers. Some motors put the AdBlue filler in your boot or under the bonnet; plenty of others place the two together behind one flap. At the petrol pump, your diesel side is topped up all the time. Someone who has to stop and think where it goes usually fills the AdBlue side, from a bottle, and far less commonly. It is in the gap that the error lives. ## How does AdBlue in your diesel tank occur in Ardsley? Three things tend to line up, and carelessness is rarely one of them. Hurry follows from the warning. The car warns you as AdBlue runs low, and a dry tank puts the vehicle into limp mode — so the top-up gets done quickly, before work on a driveway off Mount Street, or heading home in the car park outside Oaks WMC. The old car's filler is where your hand reaches — but a rental car, a new car or a company car keeps the fillers elsewhere. That is a second thing: a strange motor. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the pour once it has started. Stairfoot or the heart of Ardsley: it takes the same few seconds either way. ## Telling the AdBlue filler from the diesel filler Whether a Ardsley forecourt or a drive out in Swaithe, take a few seconds over these before any goes in. - Blue and lettering: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap usually does not. Go by the cap, not its position. - Look at the size: the smaller neck is, on many motors, the AdBlue one. - Lift the filler flap and check for a label — many cars mark which belongs in which filler right there. - Can't find it beside the diesel inlet? In that case check below the bonnet or in the boot — the owner's manual says which. - The previous driver will know. Check when you collect a rental or fleet car — from Barnsley's car park, perhaps — rather than once the warning appears. ## Keeping AdBlue out of your diesel tank when you top up For the day the light appears — anywhere you are across South Yorkshire — a simple routine to follow. - Not in a rush on the side of Chapel Place, not on a slope, not with your engine running: park and switch off first. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it works. - The diesel cap remains on. Where both share a flap, make sure it is shut before the bottle comes up. - Stop when the tank is topped up or the bottle is empty; before that, tip slowly through the built-in spout. - Close the cap, and check again — confirm the diesel filler stayed closed the whole time. After that, start the vehicle. Stop there if you find, at stage two or three, that you've already poured into the diesel side. Stage five is out. ## Ardsley: already put AdBlue in your diesel tank? Brief list, then. First: your motor stays off. On plenty of diesels your ignition alone runs the fuel pump, so do not switch the car on. Thinning it with extra diesel fails, since AdBlue sinks to the base rather than blending — and that is where the fuel is pulled from. If you are at a forecourt, whether it is the Tesco or the BP, ask the staff to help push your car away from the pump. If you are on your own driveway in Ardsley, leave it where it sits. Stop as soon as it is safe and switch off, if the engine has already run. On the M1, under 3 miles from Ardsley, that means the next junction. Mileage counts — a short hop across Ardsley is a smaller job than driving under 10 miles towards Wakefield — so say about how far it went. ## What occurs when our technicians turn up around Ardsley Our engineers come to the car wherever it has stopped, whether that's outside Oakhill Primary Academy, close to Christ Church or on your own driveway. Our engineers ask what got in, roughly how much, and if it's run, since the replies settle the work and our quote. On the phone call itself, you are told our quote — before dispatch. Then the tank is cleared and the fuel system purged thoroughly. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own — which is why that matters more with AdBlue than with petrol. Testing comes at the end: before that, fresh diesel is added, and your filter is flushed or changed as needed. Before we go, our engineers fire it up and confirm that it is running correctly. If your motor has not run, most jobs take about half an hour once we're there, using pumps that are fine on a working forecourt and quiet enough to use outside a house after dark. No money in advance; you settle up on the day. Afterwards, a VAT invoice and a report from the engineer are handed to you for the insurer. It is worth checking your insurance as the van travels to you: misfuelling cover is included with many policies. ## About Ardsley, briefly Ardsley is a suburban area in South Yorkshire, situated near the River Dearne at an elevation of around 75 metres. Ardsley lies approximately 9.8 miles from Wakefield and is close to nearby places such as Stairfoot, Cundy Cross, and Lundwood. Ardsley has a population of around 2515 people and is characterised by predominantly semi-detached housing. Ardsley is located about 151.2 miles north of London. ## Ardsley and South Yorkshire: AdBlue drains across the area As a residential suburb, Ardsley shares its vans nearby places — Cundy Cross, Lundwood — right across S postcodes and the wider area around them. Quickest of all: give a S71 5 postcode for the van. The vehicle does not need to shift. A drive, a lay-by on the way to Pacers Field, a side street near Stairfoot Station: our technicians drain the vehicle where it stands. If you are near a border, or somewhere hard to describe like the back of Ebenezer Wesleyan Reform Church, ring and ask instead of assuming. ## For Ardsley motorists, the short version Pour nothing until you've read the cap. If AdBlue has gone in the diesel tank all the same, leave it off then phone 0333 366 0103. Petrol in Diesel drains it where it waits, anywhere around South Yorkshire.