Don't Start It: AdBlue in a Diesel Tank in South Heath
AdBlue in the diesel tank? Then leave your motor off — and the ignition too. In plain terms, AdBlue is just urea in water. It does not burn, it does not mix with diesel, and the damage it does starts when the system draws it in. In South Heath, AdBlue in a diesel tank found before the motor runs usually means a drain and a thorough flush, right where your car is. First, call us on 0333 366 0103.
South Heath, AdBlue in your diesel tank: what to do at once
Things to do:
- Pocket the keys, and that prevents anyone turning the electrics on.
- Put the hazards on if you're at all close to moving traffic.
- Which fluid, and about how much volume? Hang on to the bottle or your receipt, and our engineers will see.
- The van locates you fastest with a postcode starting HP16 0, or just the name of a street close by, so call from the car.
Things not to do:
- Not even for a second, and not to roll your vehicle: the engine stays off.
- Your ignition remains off: on lots of diesels, switching it on is enough to start your pump.
- AdBlue does not mix in diesel — it separates out — so adding more diesel won't thin it.
- Even a short way up Sibleys Rise is too far to drive the vehicle.
- No emptying it yourself, at all, at the roadside.
On a forecourt around South Heath, whether it is the the nearest petrol station or another one, ask the staff to help you roll your car clear of the petrol pump. Stopped on your own drive? Then it stays just as it is.
AdBlue in a diesel tank: what it does
Meant for your exhaust, AdBlue has no place in your engine. Stored in a dedicated tank, it is squirted into the exhaust to treat the fumes. Nothing in a fuel pump is made for this liquid — and none of it was meant to go through one.
Inside a diesel tank it behaves very differently from fuel. It does not mix in. It sinks, since it is heavier than diesel, and settles low where the pickup takes its fuel from. A vehicle filled on a driveway in Ballinger Common yesterday evening and not started since counts as the simple case. No pump has pulled the AdBlue up yet — though once the engine runs, that is what is pulled first, straight from the bottom of the tank.
From there it does two kinds of harm. What remains when the water goes is urea, which forms crystals: they lodge in narrow passages and block filters. Worse, it attacks certain metals in a fuel system, and carries on until it is cleared out. A motor left sitting in South Heath with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank is not. Diesel lubricates the injection pump and each injector as it flows; water gives none of that, which is a separate form of damage.
Why AdBlue in a diesel is regularly more serious than petrol
Fill a diesel with petrol by mistake over at the Harvest Energy, and the problem is diluted fuel. No harm comes as long as it stays unused, blended into the diesel — only once the engine runs on it.
The issue with AdBlue in a diesel is a completely wrong substance. It can't simply be run through, since it does not burn. Nor can it be thinned, since it splits back out — and the following tankful will not rinse away crystals or corrosion. So the flush matters more with AdBlue, and trying the engine "to see", in the centre of South Heath or out in Great Missenden, costs more than nearly any other slip.
The same good news holds as with petrol. Clearing a tank is the simplest job on any fuel system, and without start-up, the AdBlue stays in it — wherever across Buckinghamshire the vehicle sits.
South Heath: how AdBlue ends up in a diesel tank
In dim light, two caps together — the AdBlue cap and the diesel cap, occasionally behind one flap — may appear the same. No one intends it; plenty of designs invite it. Mostly it occurs with a bottle bought on the way home and poured in on the drive, not at the pump.
It tends to take place in a few familiar ways. The top-up gets hurried outside Great Missenden CofE Combined School, because your dash flashed with a warning as the children were taken off. After work, a container goes in on a drive close to Ballinger Road. Another version: dim light, the car park by The George Inn, and a driver using that flap the first time.
Hired vehicles, brand-new vehicles, fleet cars, or the second vehicle in a home with both fuels: the least known cars get it most. Same mistake, an identical first response — keep it off — wherever you happen to be in South Heath or the rest of Buckinghamshire.
South Heath: started your engine with AdBlue in your diesel tank?
Then the AdBlue has left the tank. It's been sucked through the filter and the fuel lines, and if your engine ran for any time, it has reached the high-pressure fuel pump and your injectors.
Maybe returning from Sibley's Coppice, or midway across South Heath, your motor may run rough, smoke, drop pace, flash your dash or cut out. Stop as soon as it is safe, switch off, and do not restart the vehicle to check. Each start pulls more of it through.
South Heath sits under 10 miles from the M40; if you were on it, leave at the first junction and pull up somewhere safe rather than driving on.
How far it went counts. A few hundred yards across South Heath to the car park by Saint Peter and Saint Paul is a very different job from a run towards St Albans, under 25 miles away, with the AdBlue reaching further into the system with each mile. Tell us roughly how far it had come.
Wherever the car came to a halt is where all of it gets done, even with more to flush once the motor has been started. Lasting damage is very uncommon if it's spotted quickly.
What does an AdBlue drain on a diesel involve around South Heath?
The vehicle stays where it is, whether that is a street beside Oldham Hall, a drive, a lay-by or a forecourt in South Heath, and the van travels to it. Which fluid went in, about how much, plus whether your motor has been run: our technicians ask before all else, since those shape the job.
Then the tank is drained where the car waits, so the polluted fuel and the AdBlue come out together. With AdBlue, far more than with petrol, the flush matters: the whole system is flushed right through because residue won't flush out unaided. The filter is cleaned, or replaced where it needs to be; clean diesel goes in; and your car is tested. Most of these jobs are a half-hour visit once we turn up, if your engine has not run. Explosion-proof pumps mean a busy forecourt sensible to work on, and they're quiet enough to spare the neighbours at night.
Finally, the system is bled with new diesel. Firing it up comes next, and then you set off from where the car is parked, outside Great Missenden or on a driveway in South Heath. Before we go, our technicians confirm it is running smoothly with new diesel in. The whole job is done where the car is, so it never needs to be taken to a workshop. Your insurer will want an engineer's report and the VAT invoice — both yours afterwards.
About South Heath and where it is
South Heath is a small village in Buckinghamshire, situated in the inland countryside of the South East region. South Heath sits at an elevation of 191 metres, approximately 27.6 miles from London and 15.1 miles from the nearest city, St Albans. South Heath is characterised by its predominantly detached housing and quiet rural surroundings, with nearby places including Little Wood Corner, Hyde End, and Mobwell.
AdBlue drains across Buckinghamshire, South Heath included
Little Wood Corner, Hyde End and Mobwell are among the towns near South Heath that the same teams reach, along with much of Buckinghamshire further out, over the HP postcode area. Close to a border, or anywhere awkward to pin down? Asking beats assuming, and so phone.
South Heath is a rural 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, we drain it where it sits, and so it never needs to be shifted to us.
South Heath: what AdBlue in a diesel tank costs to fix
Since each callouts differ, a flat figure wouldn't be honest. Whether the engine has run, and for how long, comes first in what changes the price. How much AdBlue got in comes next, and then the location of your car, because an open driveway is simpler for a technician to get to safely than a tight space behind St Mary's.
For that in mind, every call from South Heath opens by asking the same trio — what was put in, what quantity, if the engine ran — ahead of any quote. Their replies shrink the range down to a single figure.
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. Misfuelling cover comes with plenty of insurance policies, so it pays to look at yours before the van arrives.
Alongside your car around South Heath, still?
Not touching the car is, right now, the best move open to you. Ignition off, engine off, keys out. Tell us it was AdBlue, roughly how big an amount, and whether it ran, on 0333 366 0103. From there Petrol in Diesel takes over, in South Heath or wherever within Buckinghamshire.