--- title: What Now? AdBlue in a Diesel Tank Tower Hill canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/tower-hill-greater-london/ location: Tower Hill county: Greater London latitude: 51.508500 longitude: -0.078200 service: AdBlue in a Diesel Tank updated: 2026-10-04 --- # What Now? AdBlue in the Diesel Tank in Tower Hill What to do about AdBlue in a diesel tank comes down to one thing more than any other: whether your motor has run since it was put in. Anywhere your car is — London, Tower Hill — never start a motor that has not run yet. Keep nothing on, phone 0333 366 0103, then count on a proper flush after a drain, done right where the car sits around Tower Hill. If it's run, stop as soon as it is safe then switch off. Stage one remains unchanged, even if the work grows. Find the scenario below that matches yours, wherever in Greater London it happened. ## Tower Hill forecourt: AdBlue in a diesel at the pump The cap you unscrewed was the wrong one — and you only spot it while you're standing at the petrol pump, bottle or the nozzle in your hand. Possibly you are at the Texaco, perhaps at the JET, perhaps somewhere else around Tower Hill. In short: there is no better place to be to spot it. Nothing has drawn it through, so the AdBlue sits only inside that tank. Next: avoid the urge to start it just to move away from the petrol pump. Ring us from the forecourt after the car is in a bay — the staff will help push it — and keep the receipt. Emptying it right at the pump is fine if it can't be shifted, because the equipment is explosion-proof. ## AdBlue in the diesel tank on a Tower Hill drive? On your dash, a reminder had been lit all week. You bought a bottle, poured it in on the driveway, and only when you put the empty bottle in the recycling did you look once more at the cap. It happens on driveways just off Petty Wales as commonly as anywhere. What it means: if you haven't driven since, this is almost as good as the forecourt. Diesel and AdBlue keep separate: the AdBlue settles to the base of the tank and remains there, no matter how long the night. Your move: keys in the house, so nobody drives your car anywhere at breakfast. Then, ring. Our technicians drain it on your drive, whether that is around Tower Hill or out in Aldgate. The pumps are quiet enough to use outside a house after dark. ## On the road in Tower Hill with AdBlue in a diesel A mile or two after filling up, the motor started misbehaving: rough running, smoke, less power, lights on the dash. Maybe it was on Gloucester Court, possibly on the way out towards London, under a mile away. What it means: the fuel system has sucked the AdBlue in. Past the fuel filter, through the lines, and — the further the mileage — on into the high-pressure pump and each injector. Each restart, like each mile, pushes it on. Stop safely — that's the next job — then switch it off. Leave at the first junction — not the services beyond — if you are on the M11, under 10 miles from Tower Hill. It won't have cleared, so there's no point restarting to check. Phone us and say how far you drove. ## AdBlue in the wrong tank of a hire, lease or company car You've had this car hardly a week. Your own vehicle either does without AdBlue or keeps it elsewhere, and so nothing told you the AdBlue cap was right next to your diesel. Wherever you happen to be across Greater London, every driver could be caught. The upshot: exactly as above, split by if it ran, only with an added step. Work on the vehicle frequently requires the owner's approval under rental or fleet agreements. Sorting it before we turn up is faster, so ring the rental company or your fleet manager, and then us. Leave the car off while the answer arrives, whether you are waiting at London Fenchurch Street or near Chapel of Saint Peter ad Vincula. ## Tower Hill: unsure whether it was AdBlue in the diesel tank? At times the honest answer is "I think so". Which cap came off, you can't recall; meanwhile the bottle feels lighter than expected, and a whiff of ammonia hangs by the filler. Perhaps it happened in a hurry at the school gates at The Aldgate School, or on a friend's drive in The Borough. Put simply: spillage round the filler does the motor unharmed. A diesel tank with AdBlue in it is another matter. Any AdBlue in your tank will be pulled in by turning on the vehicle, and the start would not settle which it is in any case. What to do: treat it as if it went in. Don't start it. Describe what you noticed on your phone. A clear tank checked is a happier outcome than an already-run one emptied. ## What every AdBlue drain around Tower Hill has in common Whatever the case, one opening applies. Three questions come once our engineers arrive — on a filling station, a drive, a street by Memorial To The Executed in the Tower or the car park at The Liberty Bounds: the fluid, the quantity, and if it has run. Your price comes over the phone, ahead of anyone setting off, and those replies set the job. A thorough flush comes after the drain. With petrol it's standard; with AdBlue it's crucial, since deposits build up and certain metals corrode, and neither washes away unaided. Next comes your filter — cleaned, or replaced when necessary — then fresh diesel, and a test of the car. If the engine has not run, the majority of jobs take about half an hour once we're there. We fire it up last. Before our technicians head off, it's tested to be sure it runs properly on clean diesel. The entire job is done where your car is, and if it's noticed early, permanent damage is very rare. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Plenty of policies cover misfuelling, and so look at yours while the van travels. ## About Tower Hill itself Tower Hill is a suburban area in the London Borough of Tower Hamlets, situated on the north bank of the River Thames. Tower Hill sits at a low elevation of around 10 metres, close to the city of London and near neighbourhoods such as Aldgate, Wapping, and Whitechapel. Tower Hill is predominantly composed of flat dwellings, housing a population of approximately 5910 residents. Tower Hill is located near the edge of the city, about 0.7 miles from central London. ## Tower Hill and Greater London: AdBlue drains across the area Over EC3N postcodes, the vans covering Tower Hill — a residential suburb — reach nearby places as well, Wapping and Whitechapel included. A postcode starting EC3N 4 is the quickest way to tell us where you are. Whether the vehicle is on a lay-by on the way to Tower of London or in a car park in the middle of Tower Hill, it doesn't need to shift. Draining is done right there. Awkward to explain? Close to Thames River Perch or a border? Checking is better than assuming, so phone. ## The one-line version Still unrun? Keep the vehicle off and ring. Run by now: pull over, power down, ring 0333 366 0103. Petrol in Diesel handles the remainder, in Tower Hill or anywhere across Greater London.