--- title: AdBlue in a Diesel Tank Botley — Don't Start It canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/botley-hampshire/ location: Botley county: Hampshire latitude: 50.914330 longitude: -1.271390 service: AdBlue in a Diesel Tank updated: 2026-10-01 --- # AdBlue in the Diesel Tank in Botley? Keep It Switched Off With AdBlue in the diesel tank, your ignition remains off and so does your motor. Chemically, AdBlue is simply urea in water. Not like fuel, it neither burns nor mixes, and no harm happens until the engine pulls it round. A drain and a thorough flush, done where your car is in Botley, is generally what AdBlue in a diesel tank takes — if it is caught before your motor has run. First, call us on 0333 366 0103. ## Botley, AdBlue in your diesel tank: what to do straight away Do these: - Remove your keys, which stops someone switching the power on. - Near moving traffic? So put your hazards on. - Hold on to the till receipt or the empty bottle, so you can tell us what was put in and about how much. - Ring us from where you are. A postcode starting SO30 2, or the name of the nearest street, brings our van to you without a search. Never do these: - No starting the motor — not briefly, not to shift your vehicle. - Turning the key to ignition alone starts the pump going on many diesels. Avoid it. - Do not top up with diesel to dilute it. AdBlue does not dilute in diesel; it separates out. - Any driving at all is to be avoided, even a short distance along Warner Mews. - Beside the road, do not try draining it on your own. Ask the attendants to help you roll your vehicle off the pumps if you are on a forecourt around Botley, whether it is the BP or elsewhere. Stopped on your own driveway? Then it stays exactly as it is. ## AdBlue in a diesel tank: what it does The motor isn't what AdBlue is made for; your exhaust is. Kept in a separate tank, it is injected into the exhaust to treat the gases. Nothing inside a fuel pump is made for this fluid — and no part of it was intended to travel through one. Inside a diesel tank it behaves very differently from fuel. It doesn't mix in. Denser than diesel, it drops and pools below it — the very place the pickup draws from. Easiest of all: a vehicle that had AdBlue in Hedge End overnight and has not turned since. The AdBlue waits at the foot of your tank, undrawn — though it will be the first thing through once your engine runs, before any diesel at all. It causes two kinds of harm from there. What remains once the water goes is urea, which turns into crystals: they lodge in tiny passages and block filters. On top of that, it eats at some metals in the fuel system, and keeps going till it is cleared out. A car left standing around Botley with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. Diesel lubricates the injection pump and every injector as it passes; water gives no lubrication, which is a second kind of damage. ## AdBlue in a diesel: why it is regularly worse than petrol Petrol pumped into a diesel on Texaco's forecourt makes your fuel watery — that is the main issue. Blended into the diesel and sitting unused, it's no threat at that stage; running the motor is the harm. With AdBlue in a diesel, the liquid itself is plainly the wrong one. Not burning, it cannot simply be run through. Whether your vehicle sits in Wildern or the heart of Botley, firing it up "to see" does more harm with AdBlue than almost any other error, and the flush matters more. Why: it will not stay blended, so watering it down fails; and deposits and corrosion outlast the next tankful. With AdBlue, the good news is no different from petrol. Clearing a tank is the simplest job on a fuel system, and with no start-up, the AdBlue stays in it — anywhere across Hampshire the vehicle has stopped. ## How AdBlue ends up in a diesel tank around Botley Nobody means to do it. The AdBlue filler on plenty of cars rests right next to the diesel filler, occasionally under the same flap, and the two caps can look alike in poor light. A container bought when heading home and poured in at home, instead of at the forecourt, is the usual route. It tends to occur in a few familiar ways. Halfway through the morning drop-off, the dashboard flags it up, and outside Botley Church of England Controlled Primary School the top-up is hurried. After work, a bottle goes in on a driveway close to High Street. Or your car is topped up in the car park outside CrackleRock, in poor light, by someone who has never opened that flap before. The least familiar vehicles see it most — hire cars, brand-new cars, company ones, and the spare car of a home with both fuel types. Leave it switched off: that is the first response to an identical mistake, wherever around Botley or the remainder of Hampshire you happen to be. ## Botley: started the engine with AdBlue in your diesel tank? In that case, the AdBlue is no longer in that tank. Through the filter, along the lines, and — given any running time — on to the injection pump and each injector: that's how far it has gone. Expect rough running, exhaust smoke, falling power, warnings on your dash, or a cut-out — coming back from Wangfield Copse, perhaps, or midway across Botley. Stop when safe. Switch off. Keep it off instead of restarting it to check. More of it is pulled through with each start. Botley sits under 3 miles from the M27; if you were on it, exit at the first junction and stop somewhere safe instead of driving on. How far it went counts. A couple of hundred yards across Botley to the car park by Botley Market Hall is a very different job from a run towards Southampton, under 10 miles away, with the AdBlue reaching further into the fuel system with each mile. Tell us about how far it had come. There's more to clean out once your engine has been run, and our technicians do all of it where your car has ended up. When it's spotted early, lasting damage is very uncommon. ## What does an AdBlue drain on a diesel involve around Botley? A street beside William Cobbett, a driveway, a layby or a filling station: anywhere the car has come to rest around Botley, our technicians travel to it. Three answers decide the work, so before anything else our technicians ask what was put in, roughly the amount, plus whether the engine has run. Then your tank is emptied where the vehicle waits, and so the contaminated fuel and the AdBlue come out together. Residue from AdBlue won't flush out by itself, so the whole system gets a careful flush, which counts much more here than for petrol. Testing your vehicle comes last, after fresh diesel is added and your filter is flushed or, if necessary, swapped. About half an hour once we arrive is usual for most jobs where the engine hasn't run. The pumps are explosion-proof, fine on a working forecourt and quiet enough to use outside a house after dark. The last step is to bleed the system on fresh diesel. Whether it is a parking space outside the nearest station or a drive around Botley, that is where we start the engine and you set off. Our engineers make sure it runs properly on fresh diesel before we go. We do it all wherever the car has ended up, and it never needs to be taken to a workshop. Insurers ask for a VAT invoice and an engineer report, and both come at the end. ## About Botley itself Botley is a village situated on the banks of the River Hamble in Hampshire, with a low elevation of around 9 metres above sea level. Botley lies near the city of Southampton, approximately 5.8 miles away, and is surrounded by nearby places such as Boorley Green, Curdridge, and Curbridge. Botley has a population of around 1348 people and is characterised by predominantly detached housing. Botley is located in the South East region of England, about 64.3 miles from London. ## AdBlue drains in Botley and across Hampshire Boorley Green, Curdridge and Curbridge are among the towns around Botley that the same teams serve, together with most of Hampshire beyond, over the SO postcode area. Close to a boundary, or anywhere awkward to pin down? Checking beats guessing, and so phone. No moving is needed. In Botley, a village, a mobile service works: the vehicle is emptied where it stands, whether in a driveway, a residential street, a car park or a filling station. ## What does AdBlue in a diesel tank cost to sort out around Botley? There is no fair single quote, since the jobs are not the same. What moves the price is, first, whether the engine has run and for how long; then how much AdBlue went in; and then where the vehicle is and whether a van can get to it safely, which is easier on an open driveway than in a tight gap behind All Saints. That is why every call from Botley starts with the same three queries, asked before giving a figure, not after: what went in, how much, and if it's run. Given those replies, a range narrows to a single firm number. You get that price by phone, before anybody heads out, and you pay on the day, by card or over the phone, with nothing upfront. Misfuelling cover comes with many insurance policies, so it pays to look at yours before the van arrives. ## Next to the vehicle around Botley, still? Then, the most helpful thing to do with your car is to leave it. Motor off, keys out, ignition off. Call 0333 366 0103: AdBlue, roughly how much, plus if it ran are all our technicians need. Petrol in Diesel handles the rest across Hampshire, Botley included.