AdBlue in the Diesel Tank in Roath? Keep It Switched Off
If AdBlue has gone into your diesel tank, keep your engine off then keep your ignition off. AdBlue is urea dissolved in water. Not like fuel, it neither ignites nor mixes, and nothing happens till the engine sucks it through. If your engine hasn't run yet, AdBlue in a diesel tank is usually drained and thoroughly flushed where the vehicle sits around Roath. No step comes before calling 0333 366 0103.
Roath, AdBlue in the diesel tank: what to do right away
To do:
- Pull your keys out, so no one switches your ignition on.
- Near moving traffic? So put the hazard lights on.
- Hold on to the receipt or the empty bottle, so you can tell us what was put in and roughly how much.
- Ring just where you are. Quote a CF23 5 postcode or the nearest street name, and no one has to search for you.
Never do these:
- Not even for a second, and not to shift the car: your motor remains off.
- Turning the key to ignition by itself starts your pump going on many diesels. Skip it.
- AdBlue does not dilute in diesel — it separates out — so adding more diesel won't weaken it.
- Any driving at all is to be avoided, even a short stretch down Waterloo Road.
- No draining it yourself, either, on the roadside.
Moving the car off the pumps is a job for attendants to help with, wherever Roath forecourt you're on, the Sainsbury's or any other. On that drive, the car stays exactly as it is.
What AdBlue does in a diesel tank
Not the engine but the exhaust is where AdBlue belongs. From a dedicated tank it is fed straight to the exhaust, treating what your engine lets out. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is built to handle it.
It does not blend. After it is poured into the tank, AdBlue acts not at all like fuel. Denser than diesel, it sinks and collects below it — the very spot the intake draws from. A motor filled on a driveway in Pengam yesterday evening and left unstarted is the straightforward case. No pump has sucked the AdBlue up yet — but once your motor turns, that is what is pulled first, directly from the bottom of your tank.
After it's drawn in, the damage comes in two forms. It eats at certain metals found in fuel systems, attacking any part it reaches until it is cleared from your system. And once the water evaporates, the urea turns into crystals that clog filters and settle in narrow channels. Pipes carrying AdBlue mean damage overnight for a vehicle sitting in Roath. Just inside that tank, it stays the same. Diesel protects the high-pressure pump and each injector as it passes; water gives none of that, which is a separate kind of harm.
Why is AdBlue in a diesel commonly the bigger problem?
A fault of thin fuel is what you end up with from filling a diesel with petrol at the Texaco. It mixes with the diesel, and whilst it is in the tank it does no harm; the harm comes from running your motor on it.
AdBlue in a diesel is a problem of the wrong substance altogether. Since it does not burn, running it through is not an option. It doesn't stay mixed, so it can't be thinned. And crystals and corrosion don't wash out with the next tank of fuel. That's why the flush counts more with AdBlue than with petrol, and why starting the motor "to see" costs more here than almost anywhere else, whether your car is in Adamsdown or the middle of Roath.
The good news is the same as with petrol. Not run? Then the AdBlue waits only in your tank, the easiest bit of the entire system to clear, anywhere your vehicle has stopped around Cardiff.
Roath: how AdBlue ends up in a diesel tank
Many motors put the AdBlue cap beside the diesel one, now and then under one flap, and after dark the two can look the same. No one means it. Usually it's not the forecourt: someone buys a container driving home and pours it in at home.
A couple of familiar ways cover most cases. Midway through the drop-off, the dashboard flags it up, and outside the local primary school the refill is hurried. Close to Kimberley Road, a driver tips a bottle in on that drive after work. One more version: dim light, the car park outside The Claude, and a driver opening that flap the first time.
It crops up most in a rental, a new car, a company vehicle, or the spare motor in a home with both fuel types — the cars people know least. Keep it off: that's the first response to an identical mistake, anywhere around Roath or the remainder of Cardiff you happen to be.
Started the motor with AdBlue in the diesel tank in Roath?
The AdBlue has left that tank, then. The filter and lines have had it sucked along, and any running takes it on to the injection pump and each injector.
You may see your engine running unevenly, smoking, losing power, showing warning lights or cutting out, perhaps on the way back from Roath Mill Gardens or halfway across Roath. Pull over when safe. Switch off. Keep the vehicle off rather than testing it again. With each start, more of that is pulled through.
On the A48(M), under 5 miles from Roath, the first junction is where to leave, and anywhere safe is where to stop — not carrying on.
Hopping across Roath to the car park by Penylan Bowling Club is one matter; driving for Cardiff, under 3 miles away, is something else, because each mile carries the AdBlue further in. So mileage matters. About how far it had come is worth telling us.
Wherever the vehicle came to a halt is where all of it gets done, even with more to clean out after the motor has been run. Long-term damage is very rare when it's caught soon.
What does an AdBlue drain on a diesel involve around Roath?
Our engineers come to the car, wherever it has stopped in Roath: a side street close to Church of Saint Edward, King and Confessor, a drive, a lay-by or a forecourt. The work rests on three answers, and our technicians ask for first — which fluid got in, the amount, and whether the engine has turned over.
Right there, your tank is then emptied, and both the polluted diesel and the urea leave at once. A careful flush counts far more with AdBlue than after petrol, since residue won't clear away by itself. The filter is cleaned, or replaced where it needs to be; clean diesel goes in; and your car is tested. If the motor has not run, the majority of jobs take about half an hour once our technicians arrive. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house after dark.
Lastly, your system is bled with clean diesel. At that point our engineers fire it up and you drive off, whether from a parking space by Cathays or a drive in Roath. Before we go, our technicians check it's running properly with new diesel in. The entire job is done where the car is, so it never has to be taken to a garage. Your insurer is likely to want an engineer's report and your VAT invoice — each handed over once this job is done.
About Roath itself
Roath is a suburban area in Cardiff, situated near the coast and approximately 1.4 miles from the city centre. Roath has a relatively low elevation of around 13 metres above sea level and is characterised by its predominantly terraced housing. Roath is close to other nearby suburbs such as Pen-y-lan, Splott, and Tremorfa, and is home to a population of around 10,362 people.
AdBlue drains across Cardiff, Roath included
Over the CF postcode area, the vans answering AdBlue jobs around Roath serve most of Cardiff too, Pen-y-lan, Splott and Tremorfa among them. Near a boundary, or somewhere tricky to explain? Checking is better than assuming, and so ring.
Wherever your car sits — a driveway at home, a side street, a car park, a forecourt — we drain it there, and there's no need to take it to us; that suits Roath, a residential suburb, well.
AdBlue in a diesel tank around Roath: the cost of fixing it
Each job is different, so not one single quote is honest. What moves the cost is, first, whether the motor has been running and for how long; then how much AdBlue was put in; and finally where your car is and whether our van can reach it safely, which is simpler on an open drive than in a tight gap behind St Margaret's Church.
That is why each call from Roath starts with the same three questions, asked before giving a figure, not after: what went in, how much, and if it has run. The answers turn a range into a straight price.
Before anyone heads out, you hear our quote on the phone. Then you pay on the day, by card or by phone, with nothing upfront. Plenty of insurance policies include misfuelling cover, so it is worth checking yours while we're on the way.
Roath: still next to the car?
Then, do nothing — that is the most helpful step available. Engine off, keys out, ignition off. Tell us it was AdBlue, about how big an amount, and if it ran, on 0333 366 0103. From there Petrol in Diesel handles it, in Roath or anywhere within Cardiff.