--- title: Sellindge: AdBlue in a Diesel Tank? Don't Start canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/sellindge-kent/ location: Sellindge county: Kent latitude: 51.102930 longitude: 1.005470 service: AdBlue in a Diesel Tank updated: 2026-10-14 --- # Sellindge: AdBlue in the Diesel Tank? Leave It Off AdBlue in your diesel tank? Then keep your engine off — and the ignition too. Urea dissolved in water is what AdBlue is. Not like fuel, it neither burns nor mixes, and no harm starts till the engine sucks it round. In Sellindge, AdBlue in a diesel tank found before the motor runs usually means a drain and a thorough flush, right where the vehicle is. Phone 0333 366 0103 before you do anything else. ## Your next steps straight away, Sellindge: AdBlue in the diesel tank To do: - Pull the keys out, so nobody switches your ignition on. - If you are anywhere near moving traffic, put your hazards on. - Which product, and about what volume? Save the bottle or your receipt, and we will see. - Ring us from where you are. A postcode starting TN25 6, or the name of the nearest street, brings the van to you without a search. Never: - Shifting the car just a short way is no reason to fire up your engine. - Don't switch the ignition on. On plenty of diesels that alone runs the fuel pump. - AdBlue doesn't dilute in diesel — it separates out — so adding extra fuel will not weaken it. - Even a short stretch along Swan Lane is too far to drive it. - No draining it yourself, at all, at the verge. Moving your vehicle off the pumps is a job for staff to help with, whichever Sellindge forecourt you're on, the the nearest petrol station or any other. On your own driveway, do not move it at all. ## What AdBlue does in a diesel tank Meant for your exhaust, AdBlue has no business in the motor. Kept in a separate tank, it is squirted into the exhaust to clean the gases. A fuel pump is not made to take it, and AdBlue was never intended to go through one. It doesn't combine. Once it is poured into a tank of diesel, AdBlue behaves nothing like fuel. Heavier than diesel, it drops and collects below it — the same spot the pickup draws from. When your pump runs, the AdBlue is first to go through. Until then it waits underneath your diesel, and that is how a vehicle topped up in Lilyvale last night and never switched on stays the straightforward one, as long as no one touches your key. From there it does two kinds of harm. It attacks some metals used in fuel components, attacking any part it touches till it is removed from the system. And once the water goes, the urea forms crystals that block filters and settle in narrow channels. By daybreak, a vehicle sitting in Sellindge with AdBlue through its pipework gets worse; where it's only in the tank, nothing changes. Water protects nothing. The high-pressure pump and every injector depend on diesel flowing past them, so the water part damages them in its own right. ## Why AdBlue in a diesel is regularly more significant than petrol Fill a diesel with petrol by mistake at the Shell, and the problem is thinned fuel. Blended into your diesel and sitting unused, it is no threat at that stage; running the engine does the harm. The trouble with AdBlue in a diesel is a completely wrong liquid. It can't just be run through, since it does not burn. Deposits and corrosion remain through the following tankful, and AdBlue separates back from your diesel, so thinning it won't help. Hence the flush matters more, and turning the key "to see" costs more with AdBlue than nearly any other mistake — in Broad Street or the centre of Sellindge equally. As with petrol, there's good news. Anywhere around Kent the vehicle has come to rest, an unstarted motor means the AdBlue yet in the reservoir: the easiest part of any fuel system to empty. ## How AdBlue ends up in a diesel tank around Sellindge It's not deliberate. Many vehicles keep the AdBlue cap alongside the diesel inlet, now and then behind one flap, and muddling them up is easy in poor light. A container bought when driving home and poured in outside the house, rather than at the forecourt, is the typical story. A few familiar ways cover most cases. A warning light comes on during the school run, and the top-up occurs in a hurry outside Sellindge Primary School. Someone pours the bottle in at home, right off The Cygnets, as the day ends. One more pattern: darkness, the car park by Dukes Head, and someone using that flap the first time. It takes place most in the cars people know least: a hire car, a new motor, a company car, or the second vehicle of a household with one diesel and one petrol. Anywhere in Kent, Sellindge included, the slip does not change, and neither does the first response: leave it off. ## AdBlue in the diesel tank around Sellindge, and the motor started? Then that tank is no longer where the AdBlue is. It's been pulled through your filter and the fuel lines, and if the engine ran for any time, it has reached the high-pressure pump and the injectors. You may see your engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Backhouse Wood or halfway across Sellindge. Stop when safe. Turn off. Keep the vehicle off instead of restarting it to check. More of it is pulled through with each start. If you were on the M20, under a mile from Sellindge, come off at the next exit and stop somewhere safe rather than pressing on. Each mile pushes the AdBlue deeper into your system. That's why crossing Sellindge to park beside The Little Lighthouse and a drive of under 15 miles towards Canterbury are such different jobs. Approximately how far had it come? Tell us. Wherever the vehicle came to a halt is where all of it gets done, even with more to rinse out once your engine has been running. If it's noticed soon, lasting damage is very uncommon. ## What does an AdBlue drain on a diesel involve in Sellindge? The car stays where it is, whether that is a road near Sellindge Village Hall, a driveway, a lay-by or a forecourt around Sellindge, and the van comes to it. Three replies decide the work, so before anything else our technicians ask which fluid got in, roughly the amount, and if the motor has turned over. Then that tank is cleared where the car sits, so the tainted fuel and the AdBlue come out together. Your system is cleaned thoroughly, which counts more with AdBlue than with petrol, because what it leaves behind doesn't rinse out on its own. Fresh diesel goes in after your filter is flushed — or swapped, when it needs to be — and then the car is tested. Engine not run? In that case expect about half an hour once we are there for most jobs. Explosion-proof pumps mean a busy forecourt safe to work on, and they're quiet enough to spare the neighbours at night. The last step is to bleed your system on new diesel. Starting the engine comes next, and then you drive off from where your car is parked, by Westenhanger or on a driveway in Sellindge. Before leaving, our engineers make sure it's running properly with fresh diesel in. No garage is required at any stage, with the entire job done on the spot. The insurer will want an engineer's report and the VAT invoice — both yours afterwards. ## About Sellindge and where it is Sellindge is a village in Kent, situated near the River Great Stour and close to the North Downs, with an elevation of around 68 metres. Sellindge has a mix of old and new housing, but predominantly features detached homes, and is located near other small settlements such as Barrowhill and Moorstock. Sellindge is within commuting distance of Canterbury, which is approximately 12.6 miles away, and is also about 56.4 miles from London. Sellindge has a population of around 1001 people, according to recent estimates. ## AdBlue drains across Sellindge and Kent The vans that answer AdBlue calls in Sellindge also cover the places around it, Barrowhill, Moorstock and Stone Hill among them, and most of Kent beyond, across the TN postcode area. Ring and check instead of guessing if you are by a border, or somewhere tricky to explain. Wherever the vehicle stands — a driveway at home, a side street, a parking area, a forecourt — our engineers drain it there, and there's no need to take it to us; which suits Sellindge, a village, well. ## What does AdBlue in a diesel tank cost to sort out around Sellindge? Every job is different, and so not one single price is honest. What shifts the price is, firstly, whether the engine has been running and for how long; then how much AdBlue got in; and finally where the car is and whether a van can reach it safely, which is easier on an open driveway than in a tight space behind St Mary the Virgin. That is why each call from Sellindge starts with the same three queries, asked before giving a figure, not after: what went in, how much, and whether it's run. When they are known, a range becomes one firm figure. Quoted by phone before the van sets out, the job is settled on the day — card or phone, no deposit. As our engineer is on the way, dig out your insurance: plenty include misfuelling. ## Still next to the vehicle around Sellindge? In that case, do nothing — that is the best step available. Keys out; motor and ignition off. Phone 0333 366 0103 then tell us it is AdBlue, about how much, and whether it's run. Petrol in Diesel takes it from there, in Sellindge or anywhere across Kent.