--- title: AdBlue in a Diesel Tank Selly Oak? Leave It Off canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/selly-oak-west-midlands/ location: Selly Oak county: West Midlands latitude: 52.435420 longitude: -1.946150 service: AdBlue in a Diesel Tank updated: 2026-10-02 --- # AdBlue in the Diesel Tank in Selly Oak? Keep It Switched Off If AdBlue has got into your diesel tank, keep your motor off then leave the ignition off. AdBlue is urea mixed in water. It doesn't burn, it does not mix with diesel, and the damage it does begins when the system pulls it in. If the engine has not run yet, AdBlue in a diesel tank is generally emptied and carefully flushed where the car stands in Selly Oak. First, ring us on 0333 366 0103. ## Those opening minutes: AdBlue in your diesel tank around Selly Oak Do: - Take the keys out, and so nobody switches your ignition on. - Close to moving traffic? So put the hazard lights on. - So you can give us which fluid it was and about what quantity, keep the till receipt or the empty bottle. - Call just where you are. Say a B29 6 postcode or the nearest street name, and nobody has to hunt for you. Do not do these: - No starting the motor — not briefly, not to reposition the car. - Do not switch your ignition on. On many diesels that alone runs the fuel pump. - No more fuel on top. The AdBlue will not mix, so it is wasted. - Even a short stretch along Weoley Park Road is too far to drive the car. - Emptying your tank on your own beside the road isn't one to try. Get the people behind the counter to help you roll the vehicle off the pumps if you're on a forecourt around Selly Oak, whether it's the Sainsbury's or somewhere else. At home, your car remains exactly as it was left. ## What AdBlue does in a diesel tank Made for your exhaust, AdBlue has no place in the motor. From a dedicated tank it goes straight to the exhaust, treating what the engine emits. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is built to handle it. Inside a diesel tank it behaves very differently from fuel. It doesn't mix in. It is heavier than diesel, and so it sinks and collects at the bottom of that tank, which is where the pickup sucks fuel from. A car topped up on a drive in Bournbrook yesterday evening and not started since is the simple case. No pump has pulled the AdBlue up yet — though when the motor turns, that is what goes first, straight from the bottom of that tank. Two kinds of damage follow from there. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it's corrosive to some of the metals a fuel system is made from, and so it keeps labouring on the parts it hits for as long as it remains there. Lines holding AdBlue spell damage overnight for a vehicle parked around Selly Oak. Just inside that tank, it stays the same. Water lubricates nothing. The high-pressure pump and every injector depend on diesel flowing past them, so the water content harms them by itself. ## Why is AdBlue in a diesel regularly the bigger problem? A fault of thin fuel is what you get from fuelling a diesel with petrol at the Shell. Harm just comes from driving on it. Mixed into the diesel and left in the tank, it does none. With AdBlue in a diesel, the liquid as such is plainly the wrong one. Because it doesn't burn, running it through isn't an option. Deposits and corrosion remain after the following fill, and AdBlue separates back out of your diesel, so watering it can't help. That is why the flush matters so much, and trying the engine "to see" does more harm with AdBlue than almost any other slip — in Weoley Castle or the heart of Selly Oak equally. With AdBlue, the good news is no distinct from petrol. If the engine hasn't run, the AdBlue is still in the tank, and your tank is the quickest part of a fuel system to clear, wherever across West Midlands the car is sitting. ## How AdBlue ends up in a diesel tank around Selly Oak After dark, two caps side by side — the AdBlue one and the diesel one, occasionally behind one flap — can look the same. Nobody means it; plenty of designs allow it. A bottle bought when heading home and poured in at home, rather than at the forecourt, is the usual story. It tends to happen in a few familiar ways. Hurrying, outside St Mary's Church of England Primary School, after a warning lamp came on during the school run, a parent refills the vehicle. A bottle is poured in at the end of the day on a drive just off College Walk. Otherwise, after dark by The Bear and Staff, the vehicle is refilled by someone using that flap for the first time. Rented cars, new cars, company cars, or the spare vehicle in a home with both fuels: the least known cars get it the most. An identical slip, same first response — keep it off — anywhere you happen to be around Selly Oak or the remainder of West Midlands. ## Already started the engine with AdBlue in your diesel tank in Selly Oak? Then the tank is no longer where the AdBlue is. The fuel filter and pipework have had it sucked along, and any running takes it on to the injection pump and every injector. You may notice your engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Stock's Wood or halfway across Selly Oak. No restarting to check: pull over when safe, then switch everything off. Every start pulls more of that through. If you were on the Frankley Services Southbound, under 5 miles from Selly Oak, come off at the next exit and stop somewhere safe instead of pressing on. Every mile pushes the AdBlue further into your system. That's why crossing Selly Oak to park near John Henry Barlow and a drive of under 5 miles towards Birmingham are such separate jobs. About how far it had come is worth telling us. Our technicians do all of the flushing where your car has stopped, and once the engine has been run there is more of it. Long-term damage is very uncommon if it is caught quickly. ## Emptying AdBlue in a diesel in Selly Oak: what it takes A road by Selly Oak Quaker Meeting House, a drive, a layby or a forecourt: wherever the vehicle has come to rest around Selly Oak, our engineers come to it. Which fluid was put in, roughly the quantity, and whether the motor has been run: our engineers check first, because those shape the job. Next, emptying the tank on the spot takes out the contaminated diesel along with the AdBlue in one go. A careful flush counts far more with AdBlue than after petrol, because residue will not clear out on its own. Fresh diesel goes in after the fuel filter is cleaned — or swapped, when it needs to be — and after that the car is tested. If your motor hasn't run, the majority of jobs take about half an hour once our engineers are there. Quiet enough for use outside a house at night, and safe on a working forecourt, the pumps are explosion-proof. Fresh diesel goes in to bleed the fuel system, and that's the last step. Then our technicians start the engine and you head off, whether from a parking space by the nearest station or a driveway around Selly Oak. The test before we go is that it runs correctly on fresh diesel. Because the job is done in its entirety where the vehicle is, a workshop never comes into it. You receive a VAT invoice and an engineer report later on, which is what insurers ask for. ## About Selly Oak, briefly Selly Oak is a suburban area in the West Midlands, situated on the banks of the River Rea, approximately 3.5 miles southwest of Birmingham city centre. Selly Oak sits at an elevation of around 168 metres, with nearby neighbourhoods including Griffins Hill, Bournville, and Lodge Hill. Selly Oak is characterized by its predominantly semi-detached housing stock, reflecting the area's development as a residential suburb of Birmingham. Selly Oak is also relatively close to the Midlands motorway network, with London around 100 miles to the southeast. ## AdBlue drains across Selly Oak and West Midlands Throughout the B postcode area, the vans taking AdBlue jobs in Selly Oak serve much of West Midlands as well, Griffins Hill, Bournville and Lodge Hill included. Close to a boundary, or anywhere awkward to explain? Checking beats assuming, and so ring. Anywhere the car stands — your driveway at home, a side street, a car park, a filling station — our engineers drain it there, and there's no need to bring it to us; which suits Selly Oak, a residential suburb, well. ## What AdBlue in a diesel tank costs to put right in Selly Oak Because the jobs differ, a single figure would not be honest. The cost moves first with how long, if at all, the engine has been running, and next with the amount of AdBlue that went in. After that it depends on where your car is and whether a van can get to it safely, which is simpler on an open driveway than in a tight gap behind St. Mary's Church. Ahead of a figure, never after, each enquiry from Selly Oak opens with the same three questions: the fuel, the amount, plus if it ran. Once they are known, a range turns into a single fixed figure. Our quote is quoted during the call, before a van leaves; payment comes on the day, by card or over the phone, with nothing upfront. Look at your policy while we're on the way: plenty include misfuelling cover. ## Selly Oak: still alongside the car? Then, touch nothing — that is the best step available. Keys out; engine and ignition off. Say it's AdBlue, roughly how big an amount, and if it ran, on 0333 366 0103. After that Petrol in Diesel handles it, across Selly Oak or wherever in West Midlands.