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Petrol in Diesel

0333 366 0103

AdBlue in the Diesel Tank in West Hampstead? Keep It Switched Off

With AdBlue in the diesel tank, the ignition remains off and so does the engine. Urea dissolved in water is all AdBlue is. Unlike fuel, it neither burns nor blends, and no harm happens till your motor pulls it round. Caught before the motor has been run, AdBlue in a diesel tank is generally a drain and a thorough flush, done where the vehicle is in West Hampstead. Nothing comes before calling 0333 366 0103.

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West Hampstead, AdBlue in your diesel tank: what to do straight away

Do these:

  • Pocket the keys, and that stops anyone switching the electrics on.
  • If you're at all close to moving traffic, put your hazards on.
  • Which fluid, and roughly how much volume? Save the bottle or the receipt, and our engineers will know.
  • Tell us a postcode starting NW6 1, or whichever street is closest, and our van finds you straight — so call wherever you stand.

Never:

  • Not even for a second, and not to shift the car: your engine stays off.
  • Turning your key to ignition by itself starts the pump running on many diesels. Avoid it.
  • No more fuel on top. The AdBlue will not mix, and so it is wasted.
  • Keep the vehicle where it is instead of driving it anywhere, even a short stretch up Narcissus Road.
  • By the road, don't try draining it yourself.

The staff on duty at any West Hampstead filling station — the Shell included — will normally help pushing it clear if you ask. If you are on your own drive, leave the vehicle precisely where it sits.

AdBlue in a diesel tank, and what it does there

Not the engine but your exhaust is where AdBlue belongs. Stored in a dedicated tank, it's injected into the exhaust to clean the gases. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is made to handle it.

It does not blend. After it's poured into a tank of diesel, AdBlue acts not at all like diesel. It is heavier than diesel, and so it sinks and gathers at the bottom of the tank, which is where the pickup pulls fuel from. The first thing the system pulls through, once it runs, is the AdBlue. So a vehicle that had AdBlue poured in on a drive in Hampstead last night, and hasn't been started since, is still the easy case: the AdBlue is lying at the bottom of the tank, and nothing has drawn it in.

From there it causes two kinds of damage. Crystals and corrosion. As the water dries, it strands urea that crystallises in filters and narrow channels; and, since it attacks certain metals, every part it reaches keeps suffering for as long as it remains in there. A car left sitting in West Hampstead with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. The water in it causes damage of its own: your high-pressure pump and the fuel injectors rely on diesel to lubricate them, and water gives them nothing.

Draining AdBlue from a diesel tank in West Hampstead

AdBlue in a diesel: why it is frequently worse than petrol

Petrol put into a diesel on Harvest energy's forecourt leaves the fuel watery — that is the whole problem. It mixes with the diesel, and whilst it is inside the tank it does no damage; the damage comes from running the motor on it.

With AdBlue in a diesel, the fluid as such is plainly the wrong one. Not burning, it cannot just be run through. Deposits and corrosion stay after the next fill, and AdBlue splits back out of the diesel, and so thinning it won't work. Hence the flush matters more, and trying the engine "to see" costs more with AdBlue than nearly any other slip — in Cricklewood or the centre of West Hampstead equally.

The good news is the same as with petrol. Wherever around Greater London the car has come to rest, an unstarted motor means the AdBlue yet inside the reservoir: the simplest bit of any fuel system to clear.

AdBlue in a diesel tank around West Hampstead: how it ends up there

Plenty of vehicles put the AdBlue filler alongside the diesel one, occasionally behind one flap, and after dark the two can look identical. No one means it. A bottle picked up when heading home and poured in outside the house, instead of at the forecourt, is the typical story.

It tends to occur in a couple of familiar ways. The top-up is hurried outside Emmanuel Church of England Primary School, because your dash lit up with a warning as the kids were taken off. A bottle is poured in at the end of the day on a drive just off Orestes Mews. Otherwise, in dim light by The Black Lion, the vehicle is refilled by someone using that flap the first time.

It comes up the most in a rental, a new motor, a company vehicle, or the spare vehicle in a home with both fuels — the vehicles drivers use least. Wherever in Greater London, West Hampstead included, the slip doesn't change, and neither does the first step: leave it switched off.

Started the engine with AdBlue in your diesel tank around West Hampstead?

The AdBlue has left that tank, then. Your filter and pipework have had it pulled through, and some running time takes it on to the high-pressure pump and every injector.

Lumpy running, smoke, lost power, dashboard lights or stalling: any may show up, perhaps part way across West Hampstead or returning from Mill Lane Open Space. No restarting to test: stop once it is safe, then turn everything off. Each start pulls more of it through.

On the M1, under 3 miles from West Hampstead, the next junction is where to leave, and somewhere safe is where to stop — not carrying on.

How far it went matters. A few hundred yards across West Hampstead to the car park by Walter Northcott is a very different job from a run towards Westminster, under 5 miles away, with the AdBlue reaching further into the fuel system with every mile. About how far it had come is worth telling us.

Once the motor has been run, the flush covers more, and all of it is done where the car has stopped. If it is caught quickly, long-term damage is very rare.

Emptying AdBlue in a diesel around West Hampstead: what it takes

Wherever it has stopped in West Hampstead — a filling station, a layby, a drive, a street beside West Hampstead Community Centre — the van comes to your car. Three replies decide the work, so before anything else our technicians ask which fluid went in, roughly the amount, plus whether the motor has run.

On the spot, that tank is then emptied, and both the contaminated diesel and the urea come out as one. A careful flush matters much more after AdBlue than with petrol, because what remains won't wash away on its own. Testing your vehicle comes last, once fresh diesel is added and the filter gets cleaned or, if necessary, swapped. Engine not run? In that case count on roughly half an hour once we are there for most jobs. Explosion-proof pumps mean a busy forecourt safe to work on, and they run quiet enough not to disturb the neighbours at night.

The final step is to bleed the fuel system on new diesel. After that our technicians start the car and you head off, whether from a parking space at West Hampstead Thameslink or a drive around West Hampstead. It's tested on fresh diesel to make sure it runs smoothly before we head off. No garage is needed at any point, with the entire job done then and there. Afterwards, you are given the paperwork for your insurer: a VAT invoice plus a written report from the engineer.

About West Hampstead itself

West Hampstead is a suburban area in northwest London, situated approximately 4.3 miles from the city centre. West Hampstead sits at an elevation of around 63 metres, with its predominant housing stock consisting of flats. West Hampstead is bordered by nearby places such as Frognal, Brondesbury, and Childs Hill, and is located close to Westminster, which is about 4.6 miles away. West Hampstead has a population of around 17,995 people.

AdBlue drains across West Hampstead and Greater London

AdBlue jobs around West Hampstead are passed to teams that cover the places around it — Frognal, Brondesbury as well as Childs Hill — and much of Greater London beyond, across NW postcodes. Assuming won't help by a border or somewhere tricky to describe; ring and check.

Wherever your car sits — your drive at home, a side street, a parking area, a forecourt — our technicians empty it on the spot, with no need to take it to us; that suits West Hampstead, a residential suburb, well.

What AdBlue in a diesel tank costs to put right in West Hampstead

There's no fair single price, because the jobs aren't the same. Whether the motor has been running, and for how long, comes first in what changes the price. How much AdBlue got in comes next, and then the position of the car, because an open driveway is easier for our van to reach safely than a tight space behind Emmanuel Church, West Hampstead.

That is why each call from West Hampstead starts with the same three questions, asked before giving a figure, not after: what was put in, how much, and if it has run. Once they are answered, a range becomes one fixed figure.

Before anyone sets off, you hear our price on the phone. And you pay on the day, by card or by phone, with nothing upfront. Misfuelling cover is part of plenty of insurance policies, so it is worth looking at yours before the van arrives.

West Hampstead: still next to the vehicle?

Then the most helpful thing you can do is nothing to the vehicle. Keys out; engine and ignition off. Ring 0333 366 0103 and tell us it's AdBlue, roughly how much, and whether it has run. Petrol in Diesel takes it from there, around West Hampstead or anywhere in Greater London.

Call 0333 366 0103