--- title: Woking: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/woking-surrey/ location: Woking county: Surrey latitude: 51.318350 longitude: -0.558130 service: AdBlue in a Diesel Tank updated: 2026-10-19 --- # AdBlue in the Diesel Tank in Woking: What Now? What to do about AdBlue in a diesel tank comes down to one thing more than any other: if the engine has run since it was put in. If it has not, keep it that way, whether the car is in Woking itself or out in Kingfield. Leave the motor and your ignition off then phone 0333 366 0103; it's usually a drain and a thorough flush, done where the car is in Woking. Already run? Pull over once safe, then switch everything off. The job is bigger, but the first step is the same. Further down: the cases our technicians meet, anywhere around Surrey. Pick yours. ## At the petrol pump in Woking: AdBlue in a diesel The cap you unscrewed was the wrong one — and you just spot it while you are stood at the petrol pump, bottle or the nozzle in your hand. Anywhere in Woking, then — Morrisons, JET, or anywhere else close by. Meaning? Finding out here is the best it can be. Just your tank holds AdBlue; no part past it has drawn any in. Next: resist the urge to start it only to free up the pump. Ring us from the forecourt once your vehicle is in a bay — the staff will help push it — and keep the bottle. If it can't be moved, it can be emptied at the petrol pump: the equipment is explosion-proof and safe on a busy forecourt. ## AdBlue in your diesel tank at home in Woking The warning light had been on for days. A bottle from the shop, emptied in on the driveway — and it's only by the bin that the cap caught your eye. Houses just off High Street get caught out as often as anywhere else. What it means: if you have not driven since, this is almost as good as the forecourt. Being unable to mix, AdBlue settles to the base in the tank and waits. One night standing changes none of that. What to do: leave the keys inside the house so nobody moves the car in the morning. Then call. Mount Hermon or Woking: wherever your drive is, that is where it is emptied. The pumps are quiet enough to use outside a house after dark. ## AdBlue in a diesel and already driving around Woking? Topped up, drove away, and soon your engine was turning roughly, smoking, down on power, or flashing up the dash. Maybe driving for Westminster, under 25 miles away, or just down Middle Walk. The point: your system has pulled AdBlue in by now. Mileage sets how far it gets: filter and lines to begin with, then the high-pressure pump and every injector. More driving, more restarts: deeper it goes. Next: pick a safe spot, stop, then turn the motor off. Services farther on are too far: on the M25, under 5 miles out of Woking, use the first junction. Starting it again to check gets nothing — AdBlue doesn't clear on its own. About what distance had it go? Say so when you call. ## A hire or company car with AdBlue in the wrong tank? You have just driven this car a week. On your own car, AdBlue is missing or elsewhere. On this one, the cap is right by the diesel cap — news to you. Anyone, anywhere around Surrey, might do it. The point: exactly as above, divided by whether it ran, but with one added step. Any work on the car frequently requires the owner's approval under hire or fleet agreements. What to do: call the hire firm or your fleet manager first, then us. That's faster settled before our engineers get there than after. Keep the car switched off while the reply arrives, whether you are parked at the nearest station or close to Woking mural. ## Not sure it was AdBlue in the diesel tank, Woking? "I think so" is sometimes the most honest as it gets. A faint ammonia-like whiff lingers around your filler, the bottle feels too light, and which cap came off is hard to recall. The gates of Maybury Primary School in a rush, perhaps, or a friend's driveway over in Maybury. The upshot: your engine is not hurt by some AdBlue spilled around the outside. The diesel tank with AdBlue in it is another story. You can't tell which by turning the ignition, and doing so would pull in any AdBlue that is in the tank. Do this: act as if it did, and don't start the engine. Tell us what you saw on the phone. A clean tank looked at counts as a happier outcome than a run one drained. ## What every AdBlue drain around Woking has in common Whichever scenario you are in, the job starts the same way. We come to the car, whether it's on a forecourt, a driveway, the car park at The Junction Tap or a side street near The Hockey Museum, and ask three things: what went in, roughly how much, and whether the engine has been run. Replies set the job; the price comes by phone whilst nobody has set off yet. Emptying the tank comes next, followed by a full flush — more important with urea than with petrol, because crystals and corrosion will not clear by themselves, no matter how long it sits. Then is your filter — flushed, or swapped where needed — followed by clean diesel, and a test of the car. If the motor has not run, most jobs take about half an hour once we're there. Lastly, we start the engine. Before our technicians head off, it is tested to confirm it runs smoothly on clean diesel. The entire job is done where the car is, and if it is caught quickly, long-term damage is very unusual. For your insurer: an engineer's report and the VAT invoice. For you: payment on the day, nothing upfront. Plenty of insurance policies include misfuelling cover, and so it is worth checking yours while we are on the way. ## About Woking and where it is Woking is a town situated on the River Wey in Surrey, with a relatively low elevation of 37 metres above sea level. Woking lies approximately 22.7 miles southwest of central London, near the neighbouring areas of Mount Hermon, Horsell, and the Hockering Estate. Woking has a population of around 29,114 people, predominantly residing in flat-type housing. Woking is connected to the surrounding areas and London by various transport links. ## AdBlue drains round Woking and across Surrey Horsell and Hockering Estate have the same vans as Woking, a riverside town, along with further towns over GU postcodes. A postcode starting GU21 6 is the quickest way to tell us where you are. Whether your car is on a lay-by on the way to Horsell Moor or in a car park in the middle of Woking, it does not need to move. Draining happens on the spot. Awkward to pin down? Close to The Wanderer or a county line? Asking beats assuming, so ring. ## The one-line version Unstarted? Keep the car off and phone. Whichever line fits, Petrol in Diesel handles the rest on 0333 366 0103, across Surrey and within Woking — once you pull over, switch off then ring, if it has run.