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Petrol in Diesel

0333 366 0103

AdBlue in the Diesel Tank in Coped Hall? Keep It Switched Off

Engine off, ignition off: that's where you start if AdBlue has gone into the diesel tank. Urea mixed in water is all AdBlue is. As it is water-based, it will not burn and won't blend with diesel; damage just starts once your pump begins drawing it. If the engine hasn't run yet, AdBlue in a diesel tank is normally drained and carefully flushed where the car sits in Coped Hall. First, phone us on 0333 366 0103.

Call 0333 366 0103

What to do right now, Coped Hall: AdBlue in the diesel tank

Things to do:

  • So no one can turn the ignition on, take the keys away.
  • If you're at all near moving traffic, put your hazards on.
  • The empty bottle or the receipt shows us the product and the amount, so do not throw it out.
  • Ring us from where you are. A postcode starting SN4 7, or the name of the nearest street, gets the van to you without a search.

Not to do:

  • Don't start the engine, even for a moment to move your car.
  • Plenty of diesels run their pump the instant your ignition comes on, so keep the vehicle off.
  • No extra fuel added. The AdBlue will not blend, so it's pointless.
  • Even a short stretch along Malmesbury Road is too far to drive the vehicle.
  • Beside the road, do not attempt draining it yourself.

Rolling your vehicle away from the island is a job for staff to help with, whichever Coped Hall forecourt you're on, the Esso included. If you are on your own drive, leave the car exactly where it stands.

AdBlue in a diesel tank, and what it does there

Made for the exhaust, AdBlue has no business in the motor. Kept in a dedicated tank, it is injected into the exhaust stream to clean the fumes. A fuel pump is not made to take it, and AdBlue was never intended to go through one.

Fuel blends; AdBlue, after tipped in, will not. The behaviour is not at all like diesel's. It sinks, since it is heavier than diesel, and pools low where the pickup draws its supply from. Simplest of all: a vehicle that got AdBlue in Hook Street last night and has not turned since. The AdBlue waits at the base of that tank, untouched — though it will be first through once your engine starts, ahead of any diesel at all.

Once it is sucked in, the harm comes in two forms. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it is corrosive to some of the metals a fuel system is made from, and so it keeps labouring on the parts it gets to for as long as it remains there. A vehicle left sitting around Coped Hall with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank is not. Water lubricates nothing. The injection pump and each injector depend on diesel running through them, and so the water part damages them in its own right.

Draining AdBlue from a diesel tank in Coped Hall

Why AdBlue in a diesel is frequently more serious than petrol

Top up a diesel with petrol in error at the BP, and this issue is thinned fuel. Blended into the diesel and left still, it's no threat for now; using the engine does the harm.

AdBlue in a diesel is a different matter: not thin fuel, yet no fuel at all. It doesn't burn, so it can't just be run through. Crystals and corrosion remain after the next tankful, and AdBlue separates back from the diesel, so thinning it can't work. Hence the flush counts so much, and trying the engine "to see" costs more here than almost any other mistake — in Greatfield or the heart of Coped Hall alike.

With AdBlue, the good news is no separate from petrol. If your motor has not run, the AdBlue is still in that tank, and that tank is the simplest part of a fuel system to clear, wherever around Wiltshire the vehicle is standing.

How does AdBlue end up in a diesel tank around Coped Hall?

It's not deliberate. Many vehicles have the AdBlue inlet beside the diesel one, occasionally behind a single flap, and mixing them up is simple in poor light. Mostly it occurs with a bottle bought on the way home and poured in on the driveway, not at the pump.

The ways it occurs are few and familiar. Hurrying, outside Longleaze Primary School, after a warning light came on during the school run, someone tops up the vehicle. After work, a container is tipped in on a driveway close to B4042. Else, after dark by The Royal Wootton Bassett, the car is refilled by someone using that flap the first time.

Hired cars, brand-new motors, fleet cars, or the second car in a home with one of each: the least known vehicles see it most. Keep it switched off: that is the first response to the same mistake, anywhere in Coped Hall or the remainder of Wiltshire you are.

Started your engine with AdBlue in your diesel tank in Coped Hall?

Then that tank is no longer where the AdBlue is. Through the filter, through the pipework, and — with any running — on to the high-pressure pump and each injector: that's where it travels.

You may see your engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Fairfield Park or halfway across Coped Hall. No starting it again to test: stop when safe, then turn everything off. With each start, more of it is pulled through.

On the M4, under a mile from Coped Hall, the next junction is where to leave, and somewhere safe is where to stop — not driving on.

Mileage counts: every mile carries the AdBlue deeper into your system, and so driving for Bath, under 25 miles away, gives a much larger job than hopping across Coped Hall to the car park by Gerard Buxton Sports Ground. Tell us about how far it had come.

Wherever the vehicle came to a stop is where all of it gets done, even with more to rinse out after your engine has been running. Lasting damage is very uncommon if it is noticed soon.

What does an AdBlue drain on a diesel involve around Coped Hall?

Our technicians come to the car, wherever it has stopped in Coped Hall: a side street near Lime Kiln Leisure Centre, a drive, a lay-by or a forecourt. Which fluid went in, roughly the quantity, plus whether the motor has been run: our engineers ask before all else, since those shape the work.

Next, emptying that tank right there removes the contaminated diesel and the AdBlue together. The system is purged thoroughly, which matters more with AdBlue than with petrol, because what it leaves behind does not rinse out on its own. Fresh diesel goes in once the fuel filter is cleaned — or swapped, when it needs to be — and after that the car is tested. Most of these jobs are a half-hour visit once our technicians turn up, provided the engine hasn't run. The pumps are explosion-proof, fine on a working forecourt and quiet enough to use outside a house at night.

Priming the fuel system with new diesel comes last. At that point our engineers start it and you set off, whether from a parking bay at Swindon or a drive around Coped Hall. It is tested on clean diesel to be sure it runs smoothly before our technicians go. Because the job is done in its entirety where your car is, a garage never comes into it. Afterwards, you are given the paperwork for your insurer: a VAT invoice and a written report from the engineer.

About Coped Hall, for a moment

Coped Hall is a suburban area situated on the riverside in Wiltshire, with an elevation of 131 metres. Coped Hall lies near several nearby places, including Hook, Ballards Ash, and Royal Wootton Bassett, and is approximately 23 miles from the city of Bath. Coped Hall is characterized by its predominant semi-detached housing stock, reflecting the typical residential development of the region. Coped Hall is also within commuting distance to London, being around 76 miles away.

AdBlue drains in Coped Hall and across Wiltshire

Over the SN postcode area, the teams answering AdBlue jobs around Coped Hall serve much of Wiltshire as well, Hook, Ballards Ash and Royal Wootton Bassett included. If you're near a border, or somewhere hard to describe, ring and ask rather than guessing.

A mobile service suits Coped Hall, a residential suburb: there's no need to take the car to us, since our engineers empty it there, on a drive, a side street, a parking area or a forecourt.

Coped Hall: what AdBlue in a diesel tank costs to fix

There is no honest single quote, since the jobs aren't the same. What shifts the cost is, first of all, whether your engine has been running and for how long; then how much AdBlue went in; and after that where the vehicle is and whether our van can reach it safely, which is easier on an open drive than in a tight gap behind Royal Wootton Bassett Town Council.

Before any quote, never after, each enquiry from Coped Hall begins with three checks: the liquid, the amount, and whether it ran. With them, a range shrinks to a single firm number.

Quoted on the call before the engineer heads out, it is paid for on the day — card or phone, no deposit. As the van is on the way, dig out your insurance: many include misfuelling.

Coped Hall: still next to the vehicle?

Then the most handy thing you can do is nothing to the car. Ignition off, motor off, keys out. Petrol in Diesel handles the remainder, across Coped Hall or wherever in Wiltshire, once you call 0333 366 0103 saying it's AdBlue, about how big an amount, and whether it ran.

Call 0333 366 0103