--- title: Don't Start It: AdBlue in a Diesel Tank Broomieknowe canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/broomieknowe-midlothian/ location: Broomieknowe county: Midlothian latitude: 55.879660 longitude: -3.108890 service: AdBlue in a Diesel Tank updated: 2026-10-06 --- # Don't Start It: AdBlue in a Diesel Tank in Broomieknowe If AdBlue has got into the diesel tank, leave the engine off and leave the ignition off. Water with urea mixed in it: that is AdBlue. It doesn't burn, it does not mix with diesel, and the harm it does begins when the system draws it in. In Broomieknowe, AdBlue in a diesel tank found before the motor runs normally means a drain and a thorough flush, just where your car is. First, phone us on 0333 366 0103. ## AdBlue in your diesel tank in Broomieknowe: the first few minutes Do these: - Remove your keys, which prevents someone switching the electrics on. - Close to moving traffic? So put the hazards on. - The empty bottle or the receipt shows us the fluid and the quantity, so don't bin it away. - Call us from where you are. A postcode starting EH19 2, or the name of the nearest street, brings our van to you without a search. Never do these: - Shifting the car just a short way is no reason to fire up the engine. - Don't switch the ignition on. On many diesels that alone runs the fuel pump. - Pouring in more diesel does not work: AdBlue settles out instead of blending. - Leave the vehicle where it is instead of driving it anywhere, even a short distance down Viewpark Gardens. - Beside the road, do not try draining it on your own. The staff working at any Broomieknowe filling station — the Tesco among them — will usually lend a hand rolling it aside if you ask. At your own driveway, don't touch it at all. ## AdBlue in a diesel tank: what it does AdBlue is made for your exhaust, not the motor. It goes into its own tank and is sprayed into the exhaust gas to fresh it. No part inside a fuel pump is designed for this fluid — and no part of that was meant to go that way. Fuel blends; AdBlue, once poured in, will not. The behaviour is not at all like fuel's. Denser than diesel, it sinks and collects underneath it — the very spot the pickup draws from. The first thing the system pulls through, after it runs, is the AdBlue. So a motor that had AdBlue poured in on a drive in Bonnyrigg last night, and has not been started since, is still the straightforward case: the AdBlue is lying at the bottom of that tank, and nothing has drawn it in. Once it is pulled in, the damage comes in two forms. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it is corrosive to some of the metals a fuel system is made from, so it keeps running on the components it hits for as long as it remains there. A motor left standing in Broomieknowe with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank isn't. Diesel lubricates the high-pressure pump and every injector as it passes; water gives no lubrication, which is a separate form of harm. ## AdBlue in a diesel: why it is often worse than petrol A fault of thin fuel is what you get after fuelling a diesel with petrol at the another forecourt nearby. Mixed through your diesel and sitting still, it is harmless at that stage; running your motor does the damage. AdBlue in a diesel is a different problem: not thin fuel, yet no fuel at all. It can't just be run through, because it does not burn. Crystals and corrosion stay after the following fill, and AdBlue separates back from your diesel, so watering it won't work. That is why the flush matters so much, and turning your key "to see" does more harm here than nearly any other mistake — in Waverley or the centre of Broomieknowe equally. The good news is the same as with petrol. Wherever in Midlothian your car has come to rest, an unstarted motor leaves the AdBlue still in the reservoir: the simplest part of a fuel system to clear. ## How AdBlue ends up in a diesel tank in Broomieknowe After dark, two caps together — the AdBlue one and the diesel cap, occasionally under a single flap — may look the same. Nobody means it; many designs invite it. A bottle bought while heading home and poured in outside the house, rather than at the filling station, is the typical story. A few familiar ways account for the majority of them. A warning light comes on during the school run, and the top-up takes place in a hurry outside the local primary school. After work, a bottle is tipped in on a drive near High Street. Or a driver new to that flap refills the vehicle in dim light, parked in the car park by The Anvil Inn. The least familiar cars get it most — rentals, brand-new cars, fleet cars, and the other motor of a family with one of each fuel types. Same mistake, an identical first response — keep it switched off — anywhere you are around Broomieknowe or the rest of Midlothian. ## Broomieknowe: started the motor with AdBlue in the diesel tank? If so, the AdBlue is no longer in the tank. The fuel filter and lines have had it sucked through, and some running time takes it on to the high-pressure pump and every injector. Perhaps returning from King George V Park, or part way across Broomieknowe, your engine may run rough, smoke, lose power, light up your dash or stall. Pull over when it is safe. Turn off. Leave it off rather than testing it again. With each start, more of it is pulled through. Exit the M8, under 10 miles from Broomieknowe, by the next junction and park somewhere safe, not carrying on. A quick hop across Broomieknowe to the car park by Bonnyrigg Parish Church is one matter; driving towards Edinburgh, under 10 miles away, is something else, because every mile pushes the AdBlue further in. So mileage matters. Let us know about how far it had come. Wherever your car came to a halt is where all of it gets done, even with more to clean out after the motor has been run. Noticed quickly, it very seldom leaves permanent damage. ## What does an AdBlue drain on a diesel involve in Broomieknowe? A street by Michael McGahey Memorial, a drive, a layby or a filling station: wherever your car has stopped around Broomieknowe, our technicians come to it. The work depends on three replies, which we get first — which fluid was put in, the quantity, and if your motor has run. Right there, your tank is then drained, and both the polluted diesel and the urea come out as one. The system is flushed thoroughly, which counts more with AdBlue than with petrol, because what it leaves behind does not rinse out on its own. Testing the vehicle follows at the end, after fresh diesel goes in and your filter is cleaned or, if necessary, replaced. Engine not run? In that case count on roughly half an hour once we are there for most jobs. Explosion-proof pumps mean a busy forecourt sensible to work on, and they run quiet enough to spare the street at night. New diesel goes in to prime your system, and that is the final step. You drive off as soon as our technicians have started the engine, and it makes no difference whether the vehicle is on a driveway in Broomieknowe or in a space outside Eskbank. It is checked on fresh diesel to be sure it runs properly before our technicians go. Because the job is done in full where your car is, a garage never comes into it. You get a VAT invoice and an engineer report afterwards, which is what insurers ask for. ## About Broomieknowe and where it is Broomieknowe is a suburban area situated on the riverside in Midlothian, with a mix of semi-detached housing and other residential properties. Broomieknowe sits at an elevation of 108 metres, close to the nearby places of Quarryhead, Eldindean, and Lasswade. Broomieknowe is located approximately 6 miles from Edinburgh, making it a commuter-friendly area. Broomieknowe has a population of around 4096 residents, who enjoy the scenic riverside setting. ## AdBlue drains across Broomieknowe and Midlothian AdBlue call-outs in Broomieknowe go to vans that serve the towns around it — Quarryhead, Eldindean as well as Lasswade — and most of Midlothian further out, across EH postcodes. Assuming won't help close to a border or anywhere tricky to pin down; ring and ask. A van that comes to you suits Broomieknowe, a residential suburb: you have no need to take the vehicle to us, because we empty it on the spot, on a drive, a residential street, a parking area or a filling station. ## What does AdBlue in a diesel tank cost to sort out around Broomieknowe? No single figure would be fair, since each job is different. Three things change the price: whether the motor has been running and for how long, how much AdBlue went in, and where the car is. That last one comes down to whether a van can get to it safely, and an open drive is easier than a tight spot behind Scottish Workers Memorial. Ahead of a figure, never afterwards, every call from Broomieknowe opens with the same three questions: the liquid, the quantity, and whether the engine ran. Once they are answered, a range becomes a single firm number. The price is quoted during the call, before anyone sets off; settling up comes on the day, by card or over the phone, and nothing upfront. While the van is on the way, check your insurance: plenty cover misfuelling. ## In Broomieknowe and still alongside the car? Then, do nothing — that's the best move available. Keys out, engine off, ignition off. Phone 0333 366 0103: AdBlue, roughly how much, plus if the engine ran is everything our technicians ask. Petrol in Diesel takes over the remainder throughout Midlothian, Broomieknowe too.