Don't Start It: AdBlue in a Diesel Tank in Cwm
With AdBlue in the diesel tank, the ignition remains off and so does your engine. Water with urea mixed in it: that's AdBlue. The harm begins once it's pulled through your lines — it won't ignite, and it will not combine with diesel. Caught before your engine has run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where your car is in Cwm. Nothing comes before ringing 0333 366 0103.
Cwm, AdBlue in the diesel tank: what to do straight away
Do:
- Remove the keys, and that stops anyone turning the power on.
- If you are at all near moving traffic, put your hazards on.
- Keep your receipt or the empty bottle, and so you can tell us what was put in and roughly how much.
- Give us a postcode starting SA1 7, or whichever street lies closest, and our van finds you directly — so ring wherever you stand.
Things not to do:
- Don't start your motor, even for a moment to move your car.
- Your ignition stays off: on lots of diesels, turning it on is enough to run your pump.
- Do not top up with diesel to thin it. AdBlue does not mix in diesel; it separates out.
- Do not drive the vehicle anywhere, not even a short distance down Caldicot Road.
- No draining it yourself, either, on the roadside.
On a forecourt around Cwm, whether it's the Tesco or another one, ask the attendants to help you push the car away from the petrol pump. At your own drive, do not move it at all.
AdBlue in a diesel tank, and what it does there
AdBlue is made for the exhaust, not the engine. It goes into its own tank and is sprayed into the exhaust gas to fresh it. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is designed to handle it.
It doesn't blend. After it is tipped into the tank, AdBlue behaves nothing like diesel. The intake sucks fuel from the lowest part of the tank, and that is just where AdBlue ends up: being denser than diesel, it sinks. The first thing the fuel system pulls through, after it runs, is the AdBlue. So a vehicle that had AdBlue poured in on a drive in Winsh-wen last night, and hasn't been started since, is still the straightforward case: the AdBlue is lying at the bottom of your tank, and nothing has sucked it in.
It does two kinds of damage from there. Crystals and corrosion. As the water dries, it leaves urea that hardens in filters and narrow channels; and, since it eats at some metals, each part it touches keeps suffering for as long as it remains inside. Overnight, a car parked around Cwm with AdBlue through its pipework grows worse; if it's only in the tank, nothing changes. Diesel lubricates the high-pressure pump and every injector as it passes; water gives no lubrication, which is a second kind of damage.
AdBlue in a diesel: why it's frequently worse than petrol
Petrol put into a diesel on Morrisons's forecourt makes the fuel thin — that is the main fault. Harm just comes from driving on it. Blended into your diesel and sitting inside that tank, it causes none.
AdBlue in a diesel is another problem: not thin fuel, yet no fuel at all. Not burning, it cannot simply be run through. Whether the vehicle sits in Tir-Nest or the heart of Cwm, turning it over "to see" does more harm in this case than nearly any other error, and the flush matters more. The reasons: it won't stay blended, and so diluting it fails; and deposits and corrosion survive the following tankful.
As with petrol, there is good news. Not run? Then the AdBlue sits just inside the tank, the easiest bit of the whole system to clear, anywhere the car has stopped around Swansea.
How AdBlue ends up in a diesel tank in Cwm
In dim light, two caps side by side — the AdBlue cap and the diesel one, now and then behind a single flap — may look the same. Nobody intends it; plenty of layouts invite it. It usually takes place at home, from a bottle bought on the journey home, not at the forecourt.
A couple of familiar ways cover the majority of them. Hurrying, outside the local primary school, after a warning light came on during the school run, someone tops up your car. A driver tips the bottle in at home, right off Clyro Court, as the day ends. Another version: darkness, the car park by The Bonymaen, and a driver opening that flap the first time.
Hired cars, brand-new vehicles, fleet motors, or the spare vehicle in a home with both fuels: the least known vehicles get it most. Wherever you're in Cwm or the rest of Swansea, it is the same slip and the same first answer: leave the vehicle off.
Already started the engine with AdBlue in the diesel tank in Cwm?
If so, the AdBlue is no longer in the tank. Given any running, it travels to the injection pump and each injector, having passed via the fuel filter and pipework.
Perhaps coming back from Fendrod Lake Park, or midway across Cwm, the engine may go lumpy, smoke, lose power, flash the dash or cut out. Stop as soon as it is safe, switch off, and do not restart the vehicle to check. With each start, more of that is pulled through.
If you were on the M4, under 3 miles from Cwm, come off at the next junction and stop somewhere sensible instead of pressing on.
Every mile carries the AdBlue further in. That's why crossing Cwm to park near TK Maxx and a drive of under 3 miles for Swansea are such separate jobs. Roughly how far had it come? Tell us.
There is more to flush once the engine has run, and our engineers do all of it where the vehicle has come to a stop. Very rarely does it leave lasting damage if it's noticed quickly.
Draining AdBlue in a diesel in Cwm: what it takes
The vehicle remains put, whether that's a road beside Swansea Indoor Bowls Stadium, a driveway, a layby or a filling station in Cwm, and the van travels to it. Before anything else our technicians ask what got in, about how much, and whether the motor has run, since those answers determine this work.
Next, emptying your tank right there removes the polluted diesel and the AdBlue in one go. A full flush counts much more with AdBlue than after petrol, since residue will not clear away by itself. The fuel filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the vehicle is tested. The majority of these jobs are a half-hour visit once we get there, if the engine has not run. Low-noise enough to use outside a house at night, and fine on a busy forecourt, our pumps are explosion-proof.
Priming your system with fresh diesel comes last. Firing it up comes next, and then you drive off from where the car is parked, by Llansamlet or on a drive around Cwm. The test before we go is that it runs properly on clean diesel. The whole job is done where the vehicle is, so it never needs to go to a workshop. You receive a VAT invoice and an engineer report later, which is what insurers want.
About Cwm, for a moment
Cwm is a suburban area located on the coast of Swansea, sitting at an elevation of 68 metres and approximately 2.3 miles from the city centre. Cwm is bordered by nearby places such as Cefn-hengoed and Pentrer-Gaseg, and is characterized by its semi-detached housing. Cwm has a population of around 2715 residents, and is situated near the community of Bon-y-maen. Cwm is part of the wider Swansea urban area, with London being around 162.6 miles away.
AdBlue drains across Swansea, Cwm included
AdBlue jobs in Cwm go to teams that cover the places around it — Cefn-hengoed, Pentrer-Gaseg plus Bon-y-maen — and much of Swansea further out, across SA postcodes. Assuming doesn't help close to a border or anywhere hard to describe; ring and ask.
Cwm is a residential suburb, and a call-out drain suits it: whether the vehicle is on a home drive, a residential street, a car park or a forecourt, our engineers drain it where it sits, so it never needs to be moved to us.
Cwm: what AdBlue in a diesel tank costs to fix
Because each jobs differ, a flat figure would not be honest. Whether the motor has been running, and for how long, comes first in what moves the price. How much AdBlue got in comes next, and then the position of your car, because an open drive is simpler for our van to get to safely than a tight gap behind Morfa Shopping.
That's why each call from Cwm starts with the same three queries, asked before giving a figure, not after: what got in, how much, and whether it has run. With those replies, a range narrows to a single fixed number.
Our quote is quoted on the call, before a van leaves; payment happens on the day, by card or by phone, with nothing upfront. Check your policy while we are on the way: many include misfuelling cover.
Still beside the car around Cwm?
Not touching your car is, then, the best move open to you. Ignition off, motor off, keys out. Call 0333 366 0103: AdBlue, the amount, plus if it ran are all our engineers ask. Petrol in Diesel takes over the remainder throughout Swansea, Cwm too.