Don't Start It: AdBlue in a Diesel Tank in Cefn Glas
Engine off, ignition off: that is where you begin if AdBlue has gone into the diesel tank. Chemically, AdBlue is just urea in water. Being water-based, it won't ignite and won't blend with diesel; damage just comes when the pump starts drawing it. In Cefn Glas, AdBlue in a diesel tank found before your motor runs normally means a drain and a thorough flush, right where your car is. No step comes before ringing 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank in Cefn Glas
Do these:
- Pull your keys out, so no one switches your ignition on.
- Close to moving traffic? Then put the hazard lights on.
- Which product, and about how much amount? Hang on to the bottle or your receipt, and our technicians can see.
- Call us from where you are. A postcode starting CF31 4, or the name of the closest street, gets our van to you without a search.
Things not to do:
- Do not start the motor, even for a moment to move the car.
- Your ignition remains off: on lots of diesels, turning it on is enough to start the fuel pump.
- Adding more diesel doesn't work: AdBlue settles out rather than blending.
- Any driving at all is to be avoided, including a short way down Byron Avenue.
- No draining it yourself, either, on the roadside.
The staff on duty at any Cefn Glas filling station — the Murco among them — will usually help pushing it clear if you ask. If you're on your own drive, leave it exactly where it is.
What does AdBlue do in a diesel tank?
Made for the exhaust, AdBlue has no place in your engine. Its own tank keeps it, and from there it is sprayed into the exhaust, and there it treats the gas. Nothing in an injection pump is made for this fluid — and none of that was meant to travel through one.
It doesn't blend. After it is tipped into a tank of diesel, AdBlue acts not at all like diesel. It's heavier than diesel, so it sinks and gathers at the bottom of the tank, which is where the pickup pulls fuel from. The first thing your fuel system pulls through, after it runs, is the AdBlue. So a car that had AdBlue poured in on a drive in Ystrad Fawr last night, and hasn't been started since, is still the easy case: the AdBlue is lying at the bottom of that tank, and nothing has sucked it in.
Two kinds of damage follow from there. Crystals and corrosion. As the water dries, it leaves urea that crystallises in filter elements and tiny passages; and, because it attacks certain metals, each part it touches keeps suffering for as long as it remains in there. Lines carrying AdBlue spell harm by morning for a vehicle sitting around Cefn Glas. Just in the tank, it stays stable. Water protects nothing. The high-pressure pump and each injector need diesel flowing past them, so the water part damages them in its own right.
Why is AdBlue in a diesel often the bigger fault?
Fill a diesel with petrol by mistake over at the Tesco, and this problem is thinned fuel. Mixed through your diesel and sitting still, it is harmless at that stage; using your engine does the damage.
With AdBlue in a diesel, the liquid itself is simply the wrong one. Not burning, it cannot simply be run through. It does not stay mixed, so it cannot be diluted. And crystals and corrosion do not wash out with the next tank of fuel. That's why the flush counts more with AdBlue than with petrol, and why starting the engine "to see" costs more here than nearly anywhere else, whether the car is in Newcastle or the middle of Cefn Glas.
The same good news applies as with petrol. Anywhere in Bridgend your car has stopped, an unstarted engine means the AdBlue yet inside the tank: the easiest part of a fuel system to clear.
Cefn Glas: how AdBlue ends up in a diesel tank
In dim light, two caps together — the AdBlue cap and the diesel cap, occasionally under one flap — can look the same. Nobody means it; plenty of layouts allow it. A container bought while heading home and tipped in outside the house, rather than at the forecourt, is the usual story.
Mostly, it takes place in one of a couple of familiar ways. A warning light comes on during the school run, and the top-up happens in a hurry outside the local primary school. Someone tips the container in outside their house, just off Cricklewood Close, as the day ends. One more version: darkness, a pub car park by The West House, and someone opening that flap for the first time.
It happens most in the cars drivers know least: a hire car, a new motor, a company car, or the second car of a household with one diesel and one petrol. Anywhere around Bridgend, Cefn Glas included, the slip does not change, and nor does the first response: leave it switched off.
AdBlue in your diesel tank around Cefn Glas, and your engine started?
Then the AdBlue has left that tank. Given any running time, it goes on to the high-pressure pump and each injector, after passing via the filter and lines.
Watch for lumpy running, smoke, falling power, lights on your dash, or a stall — coming back from Frenhines Forest (area 1), say, or part way across Cefn Glas. Stop when it is safe. Switch off. Leave the car off instead of testing it again. With each start, more of that is pulled through.
On the M4, under 3 miles from Cefn Glas, the next junction is where to exit, and anywhere sensible is where to stop — not driving on.
How far it went matters. A couple of hundred yards across Cefn Glas to the car park by Westways Community Centre is a very different job from a run towards Swansea, under 25 miles away, with the AdBlue reaching further into the system with each mile. Tell us roughly how far it had come.
Once the motor has been started, the flush takes in more, and all of it is done where your car has ended up. Caught quickly, it very rarely leaves permanent damage.
What emptying AdBlue from a diesel involves around Cefn Glas
Our technicians come to the vehicle, wherever it has stopped around Cefn Glas: a side street close to Y Castell Newydd, a drive, a lay-by or a forecourt. The job rests on three answers, which our technicians ask for before all else — what got in, the amount, and whether your motor has run.
Next, emptying the tank right there removes the polluted diesel along with the AdBlue in one go. A careful flush matters much more with AdBlue than after petrol, since residue won't wash away by itself. After that, the filter: cleaned, or replaced if it has to be. After that clean diesel, then a check of the car. About half an hour on site is usual for most jobs when the motor hasn't run. Our equipment is explosion-proof, and so a busy filling station is no problem, and it's hushed enough for a residential street late at night.
Finally, your system is primed with clean diesel. At that point we fire it up and you head off, whether from a parking bay outside Wildmill or a drive in Cefn Glas. Our engineers check it runs smoothly on clean diesel before we go. No workshop is required at any point, with the entire job done then and there. Your insurer will want an engineer's report and your VAT invoice — each handed over afterwards.
About Cefn Glas, briefly
Cefn Glas is a suburban area in Bridgend, situated near the riverside with an elevation of around 50 metres. Cefn Glas is located close to several nearby places, including Llangewydd Court, Brynhyfryd, and Bryntirion. Cefn Glas has a population of approximately 6418 people and is characterised by predominantly semi-detached housing. Cefn Glas is also within commuting distance to Swansea, which is around 16.5 miles away.
AdBlue drains across Cefn Glas and Bridgend
Our teams that answer AdBlue jobs around Cefn Glas also cover the locations about it, Llangewydd Court, Brynhyfryd and Bryntirion among them, and most of Bridgend beyond, across the CF postcode area. Phone and ask rather than guess if you're close to a border, or anywhere awkward to pin down.
Cefn Glas is a residential suburb, 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 stands, so it never needs to be shifted to us.
AdBlue in a diesel tank in Cefn Glas: the cost of fixing it
Not one flat figure could be honest, because each job differs. What moves the cost is, firstly, whether your engine has been running and for how long; then how much AdBlue got in; and finally where the car is and whether a technician can get to it safely, which is simpler on an open driveway than in a tight gap behind Brewery Field.
That's why every call from Cefn Glas starts with the same three questions, asked before giving a figure, not after: what got in, how much, and if it has run. Those answers shrink the range down to one figure.
Our quote is given during the call, before anyone sets off; settling up comes on the day, by card or by phone, and nothing upfront. Look at your policy while we are on the way: many include misfuelling cover.
In Cefn Glas and still alongside the vehicle?
Right now, the most helpful thing to do with your car is to not touch it. Keys out, engine off, ignition off. Call 0333 366 0103: AdBlue, the amount, plus whether the engine ran are everything we ask. Petrol in Diesel handles the remainder throughout Bridgend, Cefn Glas included.