AdBlue in a Diesel Tank in Roath Park? Don't Start It
With AdBlue in the diesel tank, the ignition remains off and so does the motor. AdBlue is urea dissolved in water. The trouble begins once it's sucked through the lines — it won't ignite, and it won't combine with diesel. Caught before the engine has been run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where the vehicle is in Roath Park. No step comes before calling 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Roath Park
Do:
- Keys out — then nobody can power anything on.
- Put the hazards on if you're anywhere close to moving traffic.
- Which fluid, and roughly what volume? Save the bottle or the receipt, and our technicians will know.
- Our van locates you fastest with a postcode starting CF23 5, or simply the name of a street nearby, and so call from the spot.
Do not do these:
- Do not start your motor, even for a moment to shift the vehicle.
- Switching the key to ignition alone sets your pump going on plenty of diesels. Avoid it.
- Don't top up with diesel to thin it. AdBlue doesn't dilute in diesel; it separates out.
- Never drive the vehicle anywhere, not even a short distance up Cunningham Close.
- By the road, don't attempt emptying it on your own.
At a forecourt around Roath Park, whether it's the Texaco or another one, ask the attendants to help you push the car clear of the pump. On that drive, the vehicle remains exactly as it was left.
AdBlue in a diesel tank: what it does
AdBlue is made for the exhaust, not the engine. It goes into its own tank and is sprayed into the exhaust gas to clean it. A fuel pump is not made to cope with it, and AdBlue was never supposed to go through one.
It does not blend. Once it's poured into a tank of diesel, AdBlue behaves not at all like fuel. Denser than diesel, it sinks and collects below it — the very place the intake sucks from. The first thing the system pulls through, after it runs, is the AdBlue. So a motor that had AdBlue poured in on a drive in Llanedeyrn last night, and has not been started since, is still the straightforward case: the AdBlue is lying at the bottom of your tank, and nothing has sucked it in.
After it's drawn in, the damage comes in two forms. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it's corrosive to some of the metals a fuel system is made from, so it keeps labouring on the components it reaches for as long as it remains there. A motor left sitting around Roath Park with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank isn't. Water lubricates nothing. The injection pump and every injector depend on diesel running through them, and so the water part harms them by itself.
Why AdBlue in a diesel is regularly more serious than petrol
Put petrol in a diesel at the Morrisons and you have a fault of thin fuel. Harm only comes from driving on it. Blended into the diesel and sitting in the tank, it does none.
AdBlue in a diesel is an issue of the wrong substance altogether. It does not burn, and so it cannot simply be run through. It does not stay mixed, so it can't be diluted. And crystals and corrosion do not wash out with the next tank of fuel. That is 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 the car is in Llanishen or the middle of Roath Park.
The same good news applies as with petrol. Never started? Then the AdBlue sits just inside that tank, the easiest bit of the whole system to empty, anywhere the vehicle has stopped in Cardiff.
How AdBlue ends up in a diesel tank around Roath Park
After dark, two caps together — the AdBlue cap and the diesel one, occasionally behind a single flap — can appear the same. Nobody intends it; many layouts invite it. Usually it's not the forecourt: a driver picks up a container driving home and pours it in at home.
Usually, it happens in one of a few familiar ways. The top-up is hurried outside the local primary school, because the dash flashed with a warning as the children were taken in. A bottle is poured in at the end of the day on a drive just off Highfield Road. Otherwise, in dim light outside The Discovery, the vehicle is refilled by a driver using that flap for the first time.
Rented motors, brand-new motors, company vehicles, or the spare vehicle in a family with one of each: the least known cars see it the most. An identical slip, same first response — keep it off — wherever you are around Roath Park or the remainder of Cardiff.
AdBlue in your diesel tank around Roath Park, and the motor started?
Then the AdBlue has left your tank. It's been drawn through the filter and the fuel lines, and if your motor ran for any time, it has got to the high-pressure pump and the injectors.
Watch for lumpy running, exhaust smoke, lost power, lights on the dash, or a cut-out — coming back from Jellicoe Gardens, say, or part way across Roath Park. Once you safely can, pull over then turn everything off — with no restarting to test. More of that is pulled through with each start.
Roath Park sits under 3 miles from the M4; if you were on it, exit by the first junction and stop safely instead of driving on.
Mileage matters: every mile carries the AdBlue further in, so heading for Cardiff, under 3 miles away, gives a far bigger job than crossing Roath Park to the car park by Cardiff Christ Church. Let us know roughly how far it had come.
Wherever your car came to a stop is where all of it gets done, even with more to flush after the engine has been running. Noticed soon, it very rarely leaves long-term damage.
What draining AdBlue from a diesel involves in Roath Park
A street beside Rotary Club Wishing Well, a driveway, a layby or a filling station: wherever your vehicle has come to rest in Roath Park, we travel to it. Three answers decide the work, and so first our technicians ask what was put in, roughly the amount, and if the engine has run.
Then that tank is cleared where the car sits, and so the contaminated fuel and the AdBlue come out together. Your system is cleaned thoroughly, which counts more with AdBlue than with petrol, because what it leaves behind doesn't rinse out on its own. A test of the car comes at the end, after fresh diesel goes in and the fuel filter gets flushed or, if needed, swapped. Most of these jobs are a half-hour visit once our engineers arrive, provided your motor hasn't run. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night.
New diesel goes in to bleed your system, and that is the last step. After that we start the engine and you set off, whether from a parking bay at Heath Low Level or a drive around Roath Park. 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. Your insurer is likely to want an engineer's report and the VAT invoice — each handed over once this job is done.
About Roath Park and where it is
Roath Park is a suburban area in Cardiff, situated approximately 2.2 miles from the city centre, with Roath Park being a predominantly residential community featuring semi-detached housing. Roath Park sits at an elevation of 24 metres, close to the coast, and is near neighbouring areas such as Cyncoed, Heath, and Pen-y-lan. Roath Park is part of the wider Cardiff urban area, with the city's amenities and services within easy reach.
AdBlue drains across Roath Park and Cardiff
Our vans that answer AdBlue jobs in Roath Park also cover the spots round it, Cyncoed, Heath and Pen-y-lan among them, and most of Cardiff beyond, across the CF postcode area. Assuming doesn't help by a border or anywhere tricky to describe; phone and check.
Wherever your vehicle sits — your drive at home, a side street, a car park, a filling station — our engineers drain it on the spot, and there's no need to take it to us; which suits Roath Park, a residential suburb, well.
Roath Park: what AdBlue in a diesel tank costs to fix
Not one single figure could be honest, because every job differs. The cost shifts first with how long, if at all, the engine has been running, and next with the quantity of AdBlue that went in. After that it depends on where the car is and whether a van can get to it safely, which is simpler on an open driveway than in a tight gap behind Scott Memorial.
Before a quote, not afterwards, every call from Roath Park opens with the same three questions: the fuel, the amount, plus whether it ran. Once those are answered, a range becomes a single firm figure.
The price is given on the call, before anyone sets off; settling up comes on the day, by card or over the phone, and nothing upfront. As our engineer is travelling, dig out your insurance: many cover misfuelling.
In Roath Park and still alongside the vehicle?
Then the most handy thing you can do is nothing to the vehicle. Engine off, keys out, ignition off. Call 0333 366 0103 then tell us it is AdBlue, about how much, and if it has run. Petrol in Diesel takes it from there, around Roath Park or anywhere in Cardiff.