AdBlue in the Diesel Tank in Maerdy? Keep It Switched Off
If AdBlue has gone into the diesel tank, leave the motor off and leave the ignition off. Chemically, AdBlue is just urea in water. The harm starts once it's sucked through your pump — it will not burn, and it will not blend with diesel. A drain and a thorough flush, done where the vehicle is in Maerdy, is usually what AdBlue in a diesel tank needs — if it is caught before the engine has run. Ring 0333 366 0103 before you do anything else.
Those opening minutes: AdBlue in the diesel tank around Maerdy
Do:
- Remove the keys, and that stops someone turning the power on.
- Close to moving traffic? Then put your hazards on.
- Which product, and about what quantity? Save the bottle or your receipt, and we can see.
- The van locates you fastest with a postcode starting CF43 4, or just the name of a street close by, so call from the spot.
Not to do:
- No starting the engine — not briefly, not to reposition the car.
- The ignition remains off: on many diesels, switching it on is enough to run the fuel pump.
- Adding more diesel doesn't help: AdBlue settles out rather than thinning.
- Any driving at all is best avoided, even a short stretch up Ceridwen Street.
- Beside the road, do not attempt emptying it yourself.
Rolling the vehicle off the pumps is a job for attendants to help with, whichever Maerdy forecourt you are on, the Murco included. If you are on your own drive, leave the car just where it stands.
AdBlue in a diesel tank, and what it does there
AdBlue is made for the exhaust, not your engine. Its own reservoir keeps it, and from there it is fed into the exhaust, and there it cleans the gas. Nothing in it is supposed to pass through a fuel pump, and nothing in a fuel pump is built to handle it.
Fuel blends; AdBlue, after tipped in, will not. The behaviour is nothing like fuel's. It is heavier than diesel, so it sinks and collects at the bottom of the tank, which is where the pickup pulls fuel from. Easiest of all: a vehicle that got AdBlue in Blaenllechau last night and hasn't turned since. The AdBlue waits at the base of that tank, untouched — though it will be first through if the motor starts, ahead of any diesel at all.
After it's sucked in, the damage comes in two forms. What remains once the water evaporates is urea, which forms crystals: they settle in tiny channels and clog filters. On top of that, it eats at some metals in a fuel system, and carries on till it is cleared out. Where the AdBlue has reached the lines, waiting till morning around Maerdy makes it worse. In that tank alone, waiting costs nothing. The water in it does damage of its own: the high-pressure fuel pump and the fuel injectors depend on diesel to lubricate them, and water offers them nothing.
Why is AdBlue in a diesel regularly the bigger issue?
An issue of thin fuel is what you get after filling a diesel with petrol from the Texaco. It mixes with the diesel, and while it is in that tank it does no harm; the harm comes from running your engine on it.
AdBlue in a diesel is a different matter: not thin fuel, yet no fuel at all. It doesn't burn, so it cannot just be run through. It does not stay mixed, and 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 your motor "to see" costs more here than nearly anywhere else, whether your car is in Ferndale or the middle of Maerdy.
The good news is the same as with petrol. Not started? Then the AdBlue sits just in your tank, the easiest section of the whole system to empty, wherever your car has come to rest in Rhondda Cynon Taf.
How does AdBlue end up in a diesel tank around Maerdy?
Many cars place the AdBlue filler beside the diesel cap, now and then under a single flap, and after dark the two can appear identical. No one means it. Usually it's never the forecourt: someone buys a container heading home and tips it in outside the house.
A few familiar ways cover the majority of them. The top-up gets rushed outside the local primary school, because your dash flashed with a warning while the children were taken off. A driver tips the container in at home, just off School Street, as the day ends. Or a driver new to that flap tops up your vehicle after dark, parked in the car park by The Hotel.
Rented cars, new cars, company motors, or the second car in a family with both fuels: the least known cars see it the most. Keep it switched off: that is the first step to an identical slip, anywhere around Maerdy or the remainder of Rhondda Cynon Taf you are.
Already started the engine with AdBlue in the diesel tank around Maerdy?
The AdBlue has left that tank, then. Through your filter, along the lines, and — with any running time — on to the injection pump and each injector: that is where it has gone.
You may see the motor running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Maerdy Park or halfway across Maerdy. Pull over when it is safe. Switch off. Leave the car off instead of restarting it to check. Each start pulls more of it through.
On the M4, under 15 miles from Maerdy, the next junction is where to exit, and anywhere sensible is where to stop — not carrying on.
Every mile carries the AdBlue further into your system. That's why crossing Maerdy to park near Maerdy Gateway Miners Memorial and a drive of under 25 miles for Cardiff are such separate jobs. Tell us roughly how far it had come.
There's more to rinse out once the motor has run, and our technicians do all of it where the car has come to a stop. When it is noticed soon, long-term damage is very unusual.
What emptying AdBlue from a diesel involves in Maerdy
Our technicians come to the vehicle, wherever it has stopped in Maerdy: a side street close to Maerdy Community Centre, a drive, a lay-by or a forecourt. Three replies shape the job, so before anything else our engineers ask which fluid went in, about the amount, and if your engine has turned over.
On the spot, that tank is then emptied, and all of the contaminated diesel and the urea come out as one. What remains from AdBlue won't wash out by itself, and so the whole system gets a full flush, which matters much more with urea than for petrol. Fresh diesel goes in once your filter is flushed — or replaced, when it needs to be — and after that the vehicle is tested. Roughly half an hour on site is usual for most jobs when the motor has not run. The pumping gear is explosion-proof, and so a busy forecourt is no issue, and it is hushed enough for a residential street late at night.
Bleeding the fuel system with fresh diesel comes at the end. Firing it up comes next, and then you set off from where the car is parked, outside Treorchy or on a driveway around Maerdy. The check before our technicians go is that it runs correctly on clean diesel. Our engineers do it all wherever your car has ended up, and it never has to be taken to a garage. The insurer is likely to want an engineer's report and your VAT invoice — each handed over once the job is done.
About Maerdy
Maerdy is a small village in Rhondda Cynon Taf, situated on the banks of the River Rhondda at an elevation of 297 metres. Maerdy lies near the towns of Treorchy, Pentre, and Ynyswen, and is approximately 18.9 miles north of Cardiff. Maerdy has a population of around 1463 people, predominantly living in terraced housing. Maerdy is located in a scenic area, with the river running through the village.
Maerdy and Rhondda Cynon Taf: AdBlue drains across the area
Over the CF postcode area, the teams answering AdBlue call-outs around Maerdy serve most of Rhondda Cynon Taf too, Treorchy, Pentre and Ynyswen included. Near a boundary, or anywhere tricky to explain? Checking beats assuming, so ring.
Maerdy is a village, and a call-out drain suits it: whether the car is on a home drive, a residential street, a car park or a forecourt, our technicians drain it where it sits, and so it never needs to be shifted to us.
What does AdBlue in a diesel tank cost to sort out in Maerdy?
Every job is different, and so no single price would be honest. The price changes first with how long, if at all, your engine has been running, and next with the amount of AdBlue that was put in. After that it turns on where your car is and whether a van can get to it safely, which is easier on an open driveway than in a tight space behind Seion Chapel.
For that in mind, every enquiry from Maerdy begins by asking the same trio — which fluid went in, what quantity, whether the engine ran — ahead of any quote. Those replies narrow the range down to a single number.
Before a van sets off, you are told the quote by phone. And you pay on the day, by card or over the phone, with nothing upfront. Many insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way.
In Maerdy and still beside the car?
Then the most useful thing you can do is nothing to the vehicle. Ignition off, engine off, keys out. Call 0333 366 0103 and tell us it's AdBlue, roughly how much, and if it has run. Petrol in Diesel takes it from there, around Maerdy or anywhere in Rhondda Cynon Taf.