Chorleywood: AdBlue in the Diesel Tank? Leave It Off
If AdBlue has got into the diesel tank, keep your engine off and leave the ignition off. In plain terms, AdBlue is just urea in water. Unlike fuel, it neither burns nor blends, and nothing starts until the engine sucks it through. Caught before the motor has run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where the vehicle is around Chorleywood. Before you do anything else, phone 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Chorleywood
To do:
- Keys out — that way no one can power anything on.
- Hazards on, if moving traffic is anywhere near.
- Hold on to the till receipt or the empty bottle, and so you can tell us what was put in and about how much.
- Ring right where you are. Say a WD3 5 postcode or the nearest street sign, and nobody has to hunt for you.
Never do these:
- Not even briefly, and not to roll the vehicle: the motor stays off.
- Do not switch the ignition on. On many diesels that alone runs the fuel pump.
- Do not top up with diesel to dilute it. AdBlue doesn't dilute in diesel; it separates out.
- Leave the vehicle where it is rather than driving it anywhere, even a short stretch along Lower Road.
- No emptying it yourself, at all, at the roadside.
On a forecourt in Chorleywood, whether it's the Shell or another one, ask the staff to help you roll your car away from the pump. Parked on your own drive? Then it stays exactly where it is.
AdBlue in a diesel tank, and what it does there
AdBlue is made for your exhaust, not your engine. It goes into its own tank and is sprayed into the exhaust gas to clean it. Not one side suits the other: urea doesn't belong in an injection pump, and a pump cannot take urea.
Fuel mixes; AdBlue, once tipped in, will not. The behaviour is nothing like fuel's. The pickup sucks fuel from the deepest part of the tank, and that's precisely where AdBlue ends up: as it is heavier than diesel, it sinks. Simplest of all: one that had AdBlue in Heronsgate overnight and has not been started since. The AdBlue waits at the foot of that tank, undrawn — though it will be first through once your engine runs, before any diesel at all.
Once it is drawn in, the harm comes in two forms. It attacks certain metals used in fuel components, working on any part it touches until it is removed completely. And once the water goes, the urea forms crystals that block filters and settle in tiny passages. A vehicle left sitting around Chorleywood with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. Diesel lubricates the injection pump and every injector as it passes; water offers none of that, and that is a second form of harm.
AdBlue in a diesel: why it is regularly worse than petrol
Top up a diesel with petrol in error at the BP, and the issue is thinned fuel. Harm only comes from running on it. Blended into the diesel and left inside the tank, it causes none.
AdBlue in a diesel is a problem of the wrong substance altogether. Since it doesn't burn, running it through isn't an option. Whether your car sits in Chenies or the heart of Chorleywood, firing it up "to see" costs more in this case than almost any other mistake, and the flush matters for more. The reasons: it won't remain mixed, so watering it down fails; and deposits and corrosion outlast the next tankful.
The same good news applies as with petrol. Clearing a tank is the easiest job on any fuel system, and without start-up, the AdBlue stays in it — anywhere around Hertfordshire your car has stopped.
Chorleywood: how AdBlue ends up in a diesel tank
Many cars put the AdBlue filler alongside the diesel cap, now and then under one flap, and in dim light the two may look the same. Nobody means it. Mostly it happens with a bottle bought on the way home and poured in on the driveway, not at the forecourt.
A couple of familiar ways account for the majority of them. Midway through the drop-off, the dashboard warns, and outside The Russell School the top-up is hurried. A driver pours the container in at home, just off The Parade, as the day ends. Else, in dim light outside Rose and Crown, your vehicle gets topped up by someone using that flap for the first time.
The least familiar cars see it most — hire cars, brand-new ones, fleet cars, and the spare car of a family with one of each fuel types. An identical slip, same first step — keep it off — anywhere you happen to be in Chorleywood or the remainder of Hertfordshire.
Started the motor with AdBlue in the diesel tank around Chorleywood?
Then the AdBlue has left your tank. Via the filter, through the pipework, and — with any running time — on to the high-pressure pump and every injector: that's how far it has gone.
Perhaps coming back from Shire Lane median strip lower, or midway across Chorleywood, the engine may go lumpy, smoke, lose pace, light up the dash or cut out. When safe, pull over then turn everything off — without restarting to test. More of it is pulled through with each start.
Chorleywood sits under 3 miles from the M25; if you were on it, leave by the next junction and stop somewhere safe instead of driving on.
Each mile pushes the AdBlue further in. That is why a hop across Chorleywood to park near Village Art Phone Box and a drive of under 15 miles towards St Albans are such distinct jobs. Approximately how far had it come? Tell us.
There's more to rinse out once the motor has been run, and we do all of it where the vehicle has come to a stop. Very rarely does it leave lasting damage if it is noticed early.
Draining AdBlue in a diesel around Chorleywood: what it takes
We come to the vehicle, wherever it has stopped in Chorleywood: a side street near St John Fisher, a drive, a lay-by or a forecourt. Three replies decide the job, and so first our technicians ask what went in, roughly the amount, and if the motor has turned over.
Next, draining the tank right there removes the contaminated diesel and the AdBlue together. The system is rinsed thoroughly, which matters more with AdBlue than with petrol, since what it leaves behind does not rinse out on its own. Testing the vehicle comes at the end, after fresh diesel goes in and the fuel filter is flushed or, where necessary, replaced. Engine not run? Then expect roughly half an hour on site for most jobs. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night.
Bleeding the fuel system with fresh diesel comes at the end. Starting it comes next, and then you head off from where the car is parked, at the nearest station or on a driveway in Chorleywood. Before we go, our technicians make sure it's running properly with new diesel in. Since the job is done in full where the car is, a garage never comes into it. Insurers want a VAT invoice and an engineer report, and you get both at the end.
About Chorleywood and where it is
Chorleywood is a town in Hertfordshire, situated approximately 19.7 miles northwest of London and 10.3 miles southwest of St Albans. Chorleywood sits in a valley at an elevation of around 83 metres, surrounded by wooded hills and nearby areas such as Chorleywood Bottom and The Swillett. Chorleywood has a population of around 6422 people, predominantly living in detached houses.
AdBlue drains across Hertfordshire, Chorleywood included
Throughout the WD postcode area, the teams taking AdBlue call-outs in Chorleywood serve much of Hertfordshire too, Chorleywood Bottom, Chorleywood West and The Swillett among them. Phone and ask instead of guessing when you are by a border, or anywhere awkward to pin down.
A van that comes to you fits Chorleywood, a town: there's no need to take the car to us, because our engineers drain it there, on a drive, a side street, a parking area or a forecourt.
AdBlue in a diesel tank around Chorleywood: the cost of fixing it
There's no honest single quote, because the jobs aren't the same. What moves the cost is, first, whether the engine has run and for how long; then how much AdBlue got in; and after that where your car is and whether our van can get to it safely, which is simpler on an open drive than in a tight spot behind Chorleywood Art Centre.
For that reason, each enquiry from Chorleywood begins with the same trio — which fluid went in, what quantity, if the engine ran — before a figure. When those are known, a range becomes one firm figure.
You get that quote by phone, before anyone sets off, and you pay on the day, by card or over the phone, with nothing upfront. Misfuelling cover comes with many insurance policies, so it is worth looking at yours before the van gets there.
In Chorleywood and still alongside the car?
Then, the most helpful thing to do with the car is to leave it. Keys out, engine off, ignition off. Petrol in Diesel takes over the remainder, across Chorleywood or wherever in Hertfordshire, after you phone 0333 366 0103 to say it's AdBlue, about how big an amount, and if the engine ran.