AdBlue in the Diesel Tank in Chiswell Green? Keep It Switched Off
With AdBlue in the diesel tank, your ignition stays off and so does your motor. In plain terms, AdBlue is just urea in water. Being water-based, it will not ignite and won't blend with diesel; trouble only starts once your pump starts pulling it. A drain and a thorough flush, done where your car is around Chiswell Green, is normally all AdBlue in a diesel tank takes — if it is caught before your motor has run. Before you do anything else, phone 0333 366 0103.
AdBlue in your diesel tank in Chiswell Green: the first few minutes
To do:
- Pull the keys out, so nobody switches your ignition on.
- Put the hazard lights on if you are anywhere near moving traffic.
- Which product, and about what quantity? Save the bottle or the till receipt, and our engineers will know.
- Our van finds you quickest with a postcode starting AL2 3, or simply the name of a street nearby, and so phone from the car.
Do not do these:
- Not even briefly, and not to roll the car: your motor remains off.
- Don't switch your ignition on. On many diesels that alone runs the fuel pump.
- Do not top up with diesel to dilute it. AdBlue does not mix in diesel; it separates out.
- Leave the vehicle where it is rather than driving it anywhere, even a short way up Chiswell Green Lane.
- By the road, don't attempt draining it on your own.
Rolling the car off the pumps is a job for staff to help with, wherever Chiswell Green forecourt you're on, the Shell included. Stopped on your own driveway? Then it stays exactly as it is.
AdBlue in a diesel tank, and what it does there
Not the engine but the exhaust is where AdBlue belongs. Its own reservoir holds it, and from there it is sprayed into your exhaust, and there it treats the gas. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is designed to handle it.
Fuel mixes; AdBlue, after tipped in, will not. Its behaviour is not at all like fuel's. Heavier than diesel, it sinks and collects below it — the very spot the pickup draws from. A car topped up on a drive in St Stephens overnight and not started since is the simple one. Nothing has sucked the AdBlue up so far — though once the motor runs, that is what goes first, straight from the bottom of that tank.
From there it causes two kinds of harm. It attacks some metals used in fuel components, attacking any part it reaches till it's cleared from the system. And when the water goes, the urea turns into crystals that clog filters and settle in tiny channels. A car left sitting in Chiswell Green with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. Water lubricates nothing. The high-pressure pump and each injector need diesel running past them, and so the water content harms them in its own right.
AdBlue in a diesel: why it's regularly worse than petrol
Put petrol in a diesel at the BP and you have a fault of thin fuel. It mixes with the diesel, and while it is in your tank it causes no harm; the harm comes from running your engine on it.
The issue with AdBlue in a diesel is a totally unsuitable substance. Because it doesn't burn, running it through isn't an option. Deposits and corrosion remain through the next fill, and AdBlue splits back out of your diesel, and so thinning it won't help. That is why the flush counts more, and trying your engine "to see" costs more with AdBlue than almost any other mistake — in Potters Crouch or the centre of Chiswell Green alike.
As with petrol, there is good news. Not started? Then the AdBlue sits just inside your tank, the simplest bit of the whole system to empty, wherever your car has come to rest around Hertfordshire.
How AdBlue ends up in a diesel tank around Chiswell Green
Many cars put the AdBlue cap alongside the diesel one, now and then behind a single flap, and in dim light the two can look the same. No one intends it. It usually happens outside the house, from a container grabbed en route home, rather than at the forecourt.
A few familiar ways account for the majority of them. Midway through the drop-off, the dashboard warns, and outside Killigrew Primary and Nursery School the top-up is rushed. A driver tips the container in at home, just off Tippendell Lane, as the day ends. One more pattern: darkness, the car park by The Three Hammers, and someone using that flap the first time.
Hired motors, brand-new vehicles, fleet vehicles, or the spare vehicle in a home with one of each: the least known vehicles get it most. An identical slip, same first step — keep it off — anywhere you are around Chiswell Green or the remainder of Hertfordshire.
AdBlue in your diesel tank around Chiswell Green, and your engine started?
Then the AdBlue has left your tank. With any running, it goes on to the injection pump and each injector, having passed via the filter and lines.
Perhaps coming back from Greenwood Park, or midway across Chiswell Green, the motor may run rough, smoke, lose pace, light up the dash or stall. Pull over when it is safe. Turn off. Leave the car off instead of testing it again. With each start, more of it is pulled through.
If you were on the M25, under 3 miles from Chiswell Green, come off at the next exit and stop somewhere safe instead of pressing on.
Distance matters: every mile carries the AdBlue deeper into the system, so driving for St Albans, under 3 miles away, makes a far larger job than crossing Chiswell Green to the car park by Chiswell Green United Reformed Church. Let us know about how far it had come.
Wherever the vehicle came to a stop is where all of it gets done, even with more to clean out once the motor has been running. Very rarely does it leave long-term damage when it's noticed early.
What does an AdBlue drain on a diesel involve in Chiswell Green?
A street by Park Street Baptist Church, a drive, a lay-by or a filling station: anywhere the vehicle has come to rest in Chiswell Green, our technicians travel to it. The work depends on three answers, which we get first — what got in, the quantity, and if your motor has turned over.
Then that tank is cleared where the vehicle stands, and so the polluted fuel and the AdBlue come out together. The system is purged thoroughly, which matters more with AdBlue than with petrol, since what it leaves behind does not rinse out on its own. Testing your car comes at the end, once clean diesel goes in and the filter gets flushed or, where needed, replaced. If the motor hasn't run, most jobs take about half an hour once we are there. Quiet enough to use outside a house at night, and fine on a busy forecourt, our pumps are explosion-proof.
New diesel goes in to prime the system, and that is the final step. After that our technicians start the car and you drive off, whether from a parking bay at Park Street or a drive in Chiswell Green. The check before we go is that it runs smoothly on fresh diesel. Our technicians do it all wherever the car has ended up, and it never needs to be taken to a workshop. Insurers want a VAT invoice and an engineer report, and both come afterwards.
About Chiswell Green itself
Chiswell Green is a village in Hertfordshire, situated near the city of St Albans and approximately 18 miles from London. Chiswell Green sits in a relatively low-lying area at an elevation of around 99 metres, surrounded by other local communities such as How Wood and Park Street. Chiswell Green has a population of around 2766 people, predominantly living in semi-detached housing.
AdBlue drains in Chiswell Green and across Hertfordshire
AdBlue jobs in Chiswell Green are passed to teams that cover the towns near it — How Wood, St Julians as well as Park Street — and much of Hertfordshire beyond, across AL postcodes. If you're close to a boundary, or somewhere hard to explain, ring and ask instead of guessing.
Chiswell Green is a rural village, and an on-site drain suits it: whether the vehicle is on a home drive, a residential street, a car park or a forecourt, we drain it where it sits, so it never needs to be moved to us.
AdBlue in a diesel tank around Chiswell Green: the cost of fixing it
Not one flat price could be fair, because every job is different. The price changes first with how long, if at all, the engine has been running, and next with the quantity of AdBlue that got in. After that it turns on where your car is and whether a technician can reach it safely, which is easier on an open driveway than in a tight space behind St Bartholomew's.
With that reason, each call from Chiswell Green begins with the identical trio — what was put in, what quantity, whether the engine ran — before a figure. Those replies turn a range into a straight quote.
You get that quote by phone, before anybody sets off, and you pay on the day, by card or over the phone, with nothing upfront. Plenty of insurance policies include misfuelling cover, so it is worth checking yours whilst we are on the way.
Chiswell Green: still beside the car?
Then the most helpful thing you can do is nothing to the car. Keys out; motor and ignition off. Ring 0333 366 0103 and tell us it is AdBlue, roughly how much, and if it has run. Petrol in Diesel takes it from there, in Chiswell Green or anywhere in Hertfordshire.