AdBlue in the Diesel Tank in Adamsdown? Keep It Switched Off
With AdBlue in the diesel tank, your ignition stays off and so does your motor. Water with urea dissolved in it: that's AdBlue. The harm starts once it is pulled through your pump — it will not ignite, and it will not blend with diesel. Caught before your motor has run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where your car is in Adamsdown. Before anything, phone us on 0333 366 0103.
Adamsdown, AdBlue in the diesel tank: what to do right away
Do:
- Keys out — that way no one can power anything on.
- Put the hazard lights on if you are anywhere close to moving traffic.
- Which product, and roughly what volume? Save the bottle or your receipt, and our engineers will know.
- Tell us a postcode starting CF24 0, or whatever street is closest, and our van finds you straight — so ring wherever you are.
Things not to do:
- No starting the motor — not briefly, not to reposition the vehicle.
- Plenty of diesels power their pump the instant the ignition goes on, and so keep the car off.
- Do not top up with diesel to dilute it. AdBlue does not dilute in diesel; it separates out.
- Keep the car where it is rather than driving it anywhere, even a short distance up Moira Terrace.
- Do not try to drain the vehicle yourself by the roadside.
Get the attendants to help you roll your car off the pumps if you're at a forecourt around Adamsdown, whether it is the Esso or elsewhere. Stopped on your own drive? Then it remains exactly as it is.
What AdBlue does in a diesel tank
Meant for your exhaust, AdBlue has no place in your motor. It goes into its own tank and is sprayed into your exhaust gas to clean it. Nothing in it is supposed to pass through a fuel pump, and nothing in a fuel pump is built to handle it.
Inside a diesel tank it acts very differently from fuel. It does not mix in. Denser than diesel, it sinks and collects below it — the same spot the pickup sucks from. A car topped up on a driveway in Central yesterday evening and left unstarted counts as the straightforward one. No pump has pulled the AdBlue up yet — though when your motor runs, that's what goes first, straight from the bottom of that tank.
Two kinds of harm follow from there. It eats at some metals used in fuel components, attacking any part it reaches until it is cleared from the system. And once the water evaporates, the urea forms crystals that block filters and lodge in narrow channels. Pipes carrying AdBlue spell harm overnight for a vehicle sitting in Adamsdown. Only in that tank, it stays the same. Then there's the water: it offers no protection to the parts that rely on it most — the injection pump and each injector.
AdBlue in a diesel: why it is regularly worse than petrol
Top up a diesel with petrol in error at the Texaco, and the issue is diluted fuel. No harm comes as long as it stays put, mixed into the diesel — only once your engine runs on it.
The issue with AdBlue in a diesel is a totally wrong liquid. It doesn't burn, so it cannot simply be run through. Crystals and corrosion remain through the following fill, and AdBlue separates again out of your diesel, so watering it won't help. Hence the flush matters more, and turning your key "to see" does more harm here than nearly any other slip — in Atlantic Wharf or the heart of Adamsdown alike.
The same good news applies as with petrol. Clearing a tank is the simplest part on any fuel system, and without start-up, the AdBlue remains in it — wherever across Cardiff the vehicle sits.
How does AdBlue end up in a diesel tank around Adamsdown?
It is not deliberate. Many vehicles keep the AdBlue cap alongside the diesel inlet, now and then behind a single flap, and muddling them up is simple after dark. A bottle bought when driving home and poured in at home, rather than at the forecourt, is the typical story.
It tends to take place in a couple of familiar ways. Rushing, outside the local primary school, after a warning lamp came on during the school run, a parent tops up the vehicle. After work, a container is tipped in on a drive close to Fitzalan Place. Another version: darkness, the car park outside Cardiff Arms, and someone opening that flap the first time.
The least familiar vehicles get it most — rentals, brand-new cars, fleet ones, and the other motor in a home with one of each fuel types. Anywhere in Cardiff, Adamsdown included, the mistake doesn't change, and nor does the first response: keep it switched off.
Adamsdown: started the motor with AdBlue in the diesel tank?
In that case, the AdBlue is no longer inside that tank. Your filter and pipework have had it pulled through, and some running carries it on to the injection pump and every injector.
Expect lumpy running, exhaust smoke, lost power, lights on the dash, or a stall — returning from Cemetery Park, say, or part way across Adamsdown. Stop when it is safe. Turn off. Leave the vehicle off rather than restarting it to check. More of it is pulled through with each start.
Exit the A48(M), under 5 miles from Adamsdown, at the first junction and park safely, not carrying on.
How far it went counts. A few hundred yards across Adamsdown to the car park by “As near as may be to truth and justice" is a very different job from a run towards Cardiff, under a mile away, with the AdBlue reaching further into your system with each mile. Tell us roughly how far it had come.
Wherever the car came to a stop is where all of it gets done, even with more to clean out once the motor has been running. Long-term damage is very unusual if it's caught early.
Emptying AdBlue in a diesel around Adamsdown: what it takes
The car remains put, whether that's a street near Cardiff Magistrates Court, a driveway, a layby or a forecourt around Adamsdown, and our van comes to it. Before anything else our engineers ask what got in, about how much, and if your motor has been run, since those answers decide the work.
Next, emptying that tank right there takes out the polluted diesel and the AdBlue together. A full flush counts far more after AdBlue than with petrol, since what remains will not wash away by itself. Testing your car follows at the end, after clean diesel is added and your filter gets cleaned or, if needed, replaced. Most of these jobs are a half-hour job once our engineers turn up, if your engine has not run. Explosion-proof pumps make a busy forecourt safe to work on, and they're quiet enough not to disturb the neighbours at night.
Priming the fuel system with fresh diesel comes last. Starting the engine comes next, and then you head off from where the car is parked, by Cardiff Queen Street or on a drive in Adamsdown. The test before our technicians leave is that it runs properly on new diesel. No workshop is needed at any point, with the whole job done on the spot. You get a VAT invoice and an engineer report afterwards, which is what insurers ask for.
About Adamsdown itself
Adamsdown is a suburban area in Cardiff, situated near the coast and close to the city centre. Adamsdown has a relatively low elevation of around 12 metres, and its proximity to Cardiff makes it a popular residential location. Adamsdown is characterised by a high proportion of flat dwellings, which reflects its urban setting. Adamsdown is bordered by other nearby places, including Splott and Cathays Park.
AdBlue drains across Cardiff, Adamsdown included
AdBlue jobs in Adamsdown are passed to vans that cover the places around it — Cardiff, Splott plus Cathays Park — and most of Cardiff further out, throughout CF postcodes. Guessing doesn't help by a border or anywhere tricky to describe; ring and check.
Adamsdown is a residential suburb, and a call-out 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 stands, so it never needs to be moved to us.
AdBlue in a diesel tank in Adamsdown: the cost of fixing it
There is no honest single quote, because the jobs are not the same. The price moves first with how long, if at all, your engine has been running, and next with the quantity of AdBlue that went in. After that it turns on where the car is and whether a van can reach it safely, which is simpler on an open driveway than in a tight gap behind Cardiff Magistrates Youth Court.
What was put in, what quantity, plus if it ran: each Adamsdown call begins with precisely that, before a quote, not after. Those answers turn a range into a straight quote.
You hear that price by phone, before anybody sets off, and you pay on the day, by card or by phone, with nothing upfront. Plenty of insurance policies include misfuelling cover, and so it's worth checking yours while we're on the way.
Adamsdown: still beside the car?
Then, do nothing — that's the most helpful step available. Engine off, keys out, ignition off. Say it was AdBlue, about what quantity, and whether it ran, on 0333 366 0103. From there Petrol in Diesel handles it, in Adamsdown or wherever in Cardiff.