AdBlue in a Diesel Tank in Great Chesterford? Don't Start It
Motor off, ignition off: that's where you start if AdBlue has gone into your diesel tank. AdBlue is urea dissolved in water. Unlike fuel, it neither burns nor mixes, and nothing starts until the engine pulls it through. In Great Chesterford, AdBlue in a diesel tank found before your engine runs usually means a drain and a thorough flush, just where the car is. Before you do anything else, phone 0333 366 0103.
Your next steps straight away, Great Chesterford: AdBlue in the diesel tank
Things to do:
- Pocket your keys, and that stops someone switching the electrics on.
- If you are anywhere near moving traffic, put the hazard lights on.
- Which fluid, and about how much amount? Hang on to the bottle or the till receipt, and our technicians will see.
- The van finds you fastest with a postcode starting CB10 1, or simply the name of a street close by, so phone from the car.
Don't:
- No starting your motor — not briefly, not to shift the car.
- The ignition remains off: on lots of diesels, switching it on is enough to start your fuel pump.
- Don't top up with diesel to dilute it. AdBlue does not dilute in diesel; it separates out.
- Do not drive the vehicle anywhere, not even a short distance down Jacksons Lane.
- No draining it yourself, either, on the roadside.
The attendants working at any Great Chesterford forecourt — the BP included — will normally help pushing it clear if you ask. At your own driveway, don't move it at all.
AdBlue in a diesel tank, and what it does there
Not the motor but your exhaust is where AdBlue is meant to go. Its own tank holds it, and from there it's sprayed into your exhaust, and there it treats the fumes. No part inside an injection pump is made for this fluid — and none of it was intended to go that way.
It doesn't blend. Once it's poured into the tank, AdBlue behaves nothing like diesel. Heavier than diesel, it drops and pools below it — the very spot the pickup draws from. The first thing your fuel system pulls through, after it runs, is the AdBlue. So a car that had AdBlue poured in on a drive in Littlebury last night, and has not been started since, is still the straightforward case: the AdBlue is lying at the bottom of the tank, and nothing has sucked it in.
From there it does two kinds of damage. Crystals and corrosion. As the water dries, it strands urea that crystallises in filters and tiny passages; and, because it eats at certain metals, each part it touches suffers for as long as it remains inside. If the AdBlue has reached the lines, waiting overnight around Great Chesterford makes it worse. In that tank only, waiting does nothing. And there's the water: it offers no lubrication to the parts that rely on it the most — the injection pump and each injector.
Why is AdBlue in a diesel commonly the bigger problem?
Petrol pumped into a diesel on Tesco's forecourt makes the fuel thin — that's the whole problem. It mixes with your diesel, and while it's in the tank it causes no harm; the damage comes from running the motor on it.
AdBlue in a diesel is another matter: not thin fuel, yet no fuel at all. It does not burn, so it cannot just be run through. Nor can it be watered down, since it separates again — and the following tankful won't clear away deposits or corrosion. So the flush matters for more here, and turning your key "to see", in the heart of Great Chesterford or out in Northend, does more harm than almost any other error.
The same good news holds as with petrol. Emptying a tank is the simplest part on a fuel system, and without start-up, the AdBlue remains in it — wherever across Essex your car sits.
Great Chesterford: how AdBlue ends up in a diesel tank
Nobody means to do it. The AdBlue filler on many vehicles rests right next to your diesel filler, occasionally under the same flap, and the two caps can look alike in poor light. Most of the time it takes place with a bottle bought on the way home and poured in on the drive, not at the forecourt.
It tends to take place in a couple of familiar ways. The refill gets rushed outside Great Chesterford Church of England Primary Academy, after the dash lit up with a warning while the children were dropped off. Close to Carmel Street, a driver pours a bottle in on that drive in the evening. Another version: dim light, the car park outside Crown & Thistle, and a driver opening that flap the first time.
It crops up most in a hire car, a new car, a company motor, or the spare motor of a family with both fuel types — the vehicles drivers use least. Wherever you're around Great Chesterford or the rest of Essex, it's the same mistake and the same first answer: leave it off.
AdBlue in your diesel tank around Great Chesterford, and your engine started?
The AdBlue has left the tank, then. With any running time, it goes on to the high-pressure pump and every injector, after passing via the fuel filter and lines.
You may notice your motor running unevenly, smoking, losing power, showing warning lights or cutting out, perhaps on the way back from Horse River Green or halfway across Great Chesterford. No starting it again to test: pull over once it is safe, then switch everything off. Every start pulls more of it through.
Great Chesterford sits under a mile from the M11; if you were on it, exit by the next junction and stop somewhere safe rather than carrying on.
How far it went matters. A couple of hundred yards across Great Chesterford to the car park by Congregational Chapel is a very different job from a run towards Cambridge, under 15 miles away, with the AdBlue reaching further into your system with every mile. About how far it had come is worth telling us.
Once the engine has been run, the flush covers more, and all of it is done where the vehicle has stopped. When it's caught early, long-term damage is very uncommon.
What does an AdBlue drain on a diesel involve around Great Chesterford?
Our technicians come to the vehicle, wherever it has stopped in Great Chesterford: a side street near All Saints, Great Chesterford, a drive, a lay-by or a forecourt. The job depends on three answers, and our engineers get before all else — which fluid went in, the amount, and whether the engine has run.
Right there, that tank is then drained, and all of the polluted diesel and the urea leave as one. A careful flush matters far more after AdBlue than after petrol, since what remains won't wash out on its own. Next, the filter: cleaned, or changed when it has to be. Then fresh diesel, and then a test of your car. About half an hour on site is typical for most jobs where your engine hasn't run. The pumps are explosion-proof, safe on a working forecourt and quiet enough to use outside a house after dark.
The last step is to prime the fuel system on new diesel. Whether it is a parking space outside the nearest station or a drive around Great Chesterford, that is where our engineers start it and you drive off. It is tested on clean diesel to confirm it runs properly before our engineers head off. The entire job is done where the vehicle is, so it never has to go to a workshop. Your insurer will want an engineer's report and your VAT invoice — each handed over afterwards.
About Great Chesterford, briefly
Great Chesterford is a village situated on the River Cam in Essex, with a mix of old and new buildings, including many detached houses. Great Chesterford has a population of around 1775 people and is located near the villages of Little Chesterford, Ickleton, and Hinxton. Great Chesterford sits at an elevation of 43 metres, close to the city of Cambridge, which is about 10 miles away. Great Chesterford is also within commuting distance of London, which is approximately 41 miles to the south.
AdBlue drains across Essex, Great Chesterford included
The teams that answer AdBlue jobs around Great Chesterford also cover the spots round it, Little Chesterford, Ickleton and Hinxton among them, and most of Essex beyond, across the CB postcode area. Near a boundary, or somewhere awkward to explain? Checking beats guessing, so phone.
Great Chesterford is a village, and an on-site drain suits it: whether your car is on a home drive, a residential street, a car park or a forecourt, our engineers drain it where it sits, and so it never needs to be shifted to us.
AdBlue in a diesel tank around Great Chesterford: the cost of fixing it
No single price would be fair, because each job is different. The price moves first with how long, if at all, the engine has been running, and next with the amount of AdBlue that got in. After that it turns on where the vehicle is and whether a technician can get to it safely, which is easier on an open drive than in a tight spot behind Chesterfords Community Centre.
That's why every call from Great Chesterford starts with the same three questions, asked before giving a figure, not after: what was put in, how much, and if it has run. When they are known, a range becomes one fixed number.
Quoted by phone before the engineer heads out, it is paid for on the day — card or phone, no deposit. Misfuelling cover is part of many insurance policies, so it pays to look at yours before the van arrives.
In Great Chesterford and still next to the car?
Then, the most helpful thing to do with your vehicle is to not touch it. Ignition off, engine off, keys out. Call 0333 366 0103: AdBlue, roughly how much, plus if the engine ran is everything our engineers need. Petrol in Diesel handles the rest throughout Essex, Great Chesterford included.