--- title: What Now? AdBlue in a Diesel Tank Mengham canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/mengham-hampshire/ location: Mengham county: Hampshire latitude: 50.786600 longitude: -0.971590 service: AdBlue in a Diesel Tank updated: 2026-10-23 --- # AdBlue in the Diesel Tank in Mengham, and What to Do Next Has your engine turned over since the AdBlue got in? That one question decides nearly everything else from here. Out in Gable Head or right around Mengham, an unrun engine must remain that way. Call 0333 366 0103 with your key and motor still off. Across Mengham, that is typically emptied and cleaned where it stands. Already run? Pull over when safe, then switch everything off. The job is bigger, but the first stage is the same. Wherever in Hampshire it happened, one of the cases below matches yours. ## AdBlue in a diesel on a Mengham forecourt Only now, bottle yet in hand, it dawns on you that the cap you opened was the wrong one, right at the pump. It could be the JET, or perhaps the Esso, or a different forecourt in Mengham. Put simply: there is no better place exists to spot it. Just that tank holds AdBlue; not one part beyond it has drawn it in. Next: resist the temptation to fire it up just to free up the petrol pump. Ring us from the forecourt once the car sits in a bay — the staff will help roll it — and keep the bottle. Emptying it right at the petrol pump is possible if it can't be moved, since the equipment is explosion-proof. ## At home around Mengham with AdBlue in the diesel tank On the dash, a reminder had been lit all week. Bought a bottle, poured it in at home, binned the empty — and at that point looked at the cap a second time, after the fact. Driveways near Selsmore Road see it as much as anywhere. Put simply: if your car has not moved since, it is almost as good as finding out at the forecourt. Diesel and AdBlue stay separate: the AdBlue drops to the base of that tank and remains there, however long it waits. Next: prevent any early-morning move by putting the keys indoors, then ring us. We drain the vehicle on your driveway, whether that is around Mengham or out in South Hayling. Even at night, the pumps stay quiet enough for a residential street. ## AdBlue in a diesel and already driving around Mengham? A mile or two beyond filling up, the motor started playing up: rough running, smoke, lost power, lights on your dash. Possibly it was on Mengham Lane, possibly on the way out towards Portsmouth, under 10 miles away. In short: the AdBlue has been pulled through the system. Distance decides how deep it goes: filter and pipework to begin with, then the injection pump and every injector. More driving, more starts: further it travels. Next: pick a sensible spot, pull in, and turn the motor off. On the Waterlooville Bypass, under 5 miles from Mengham, that means the next junction, not the services further on. No test starts: clearing itself is not something AdBlue will do. Phone us and say how far you drove. ## Hire, lease or company car with AdBlue in the wrong tank Seven days back, the car was new to you. The AdBlue filler is right beside the diesel one, which you didn't know, since your own car either has no AdBlue or keeps it somewhere else. Any driver, anywhere around Hampshire, might make the same. Meaning? Whichever case above applies too — run or not — and one extra step. Many hire and company agreements want the owner to approve work on your car. What to do: call the hire firm or your fleet manager first, then us. That is faster settled before we turn up than after. Stuck by South Hayling United Reformed Church or at Fratton until the firm replies, the car stays turned off throughout. ## Not sure it was AdBlue in the diesel tank, Mengham? Occasionally the fair answer is "I think so". What cap was taken off, you cannot say; but the bottle weighs less than it ought to, and a whiff of ammonia hangs by your filler. Maybe on a friend's drive in Selsmore, or in a rush by Mengham Junior School on the school run. What it means: a little spilled round the filler does no harm to the motor. AdBlue inside your diesel tank does. If there is AdBlue in your tank, turning on the car would suck it in, and it would not tell you which either. Assume it was put in, and don't start your key. Call us and explain what you saw; we would rather check a tank that turns out free of AdBlue than drain one that has already been run. ## Mengham: what every AdBlue drain has in common The job begins identically, whatever your case. We come to your car, whether it's at a forecourt, a driveway, the car park at The Olive Leaf or a side street near COPP Memorial, and ask three things: what was put in, about how much, and if your motor has been run. The price comes over the phone, ahead of anyone setting off, and those answers shape the work. A thorough flush comes after the drain. With petrol it's routine; with AdBlue it is essential, because deposits build up and certain metals are attacked, and neither washes away unaided. Then comes the filter — cleaned, or swapped where needed — followed by clean diesel, and a test of the vehicle. Most unrun vehicles are a half-hour job after the moment our engineers turn up. Our technicians start it last. With clean diesel in, it runs while our technicians confirm it's running correctly, and then we head off. The whole job is done where your car is, and if it's noticed quickly, permanent damage is very uncommon. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Dig out your insurance before we're en route: cover for misfuelling comes built into plenty of policies. ## About Mengham itself Mengham is a coastal suburban area in Hampshire, situated near the city of Portsmouth and close to the neighbouring communities of South Hayling, Sea View, and Eastoke. Mengham lies at a low elevation of around 5 metres, reflecting its seaside location. Mengham has a population of approximately 4412 people, living in predominantly detached housing. Mengham is also within commuting distance of London, being around 61.8 miles away. ## AdBlue drains round Mengham and across Hampshire Sea View and Eastoke have the identical vans as Mengham, a residential suburb, along with further towns throughout PO postcodes. Fastest of all: a PO11 9 postcode to show where you stand. Whether the car is on a lay-by on the way to Legion Field or in a car park in the middle of Mengham, it does not need to move. Where it stands, that is where it gets drained. If you are somewhere hard to explain, near Hayling Christian Centre or close to a border, ring and ask instead of guessing. ## Your situation, in one line Engine never started: ring, leaving it alone. Run already? Stop, turn off, phone. Petrol in Diesel handles the rest whatever it is, across Mengham and Hampshire, on 0333 366 0103.