Preventing AdBlue in a Diesel Tank in Kidwelly: Why It Occurs
Stop reading a minute when your diesel tank already holds AdBlue in it: ignition off, engine off, and phone 0333 366 0103. Caught before the motor runs, it is normally a drain and a thorough flush, done where the car is in Kidwelly. Reading before the event? Then the rest explains why it happens and how to prevent it ever happening.
AdBlue in a diesel vehicle: two tanks, two fillers
Plenty of modern diesels around Llansaint, as well as Kidwelly, run on two liquids; the engine takes just the diesel. AdBlue's own tank holds it, and from there it goes to your exhaust, and there spraying cleans the gas.
Separate tanks, separate fillers. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Diesel goes in on each forecourt visit, again and again. Far less commonly, the AdBlue side gets filled — mostly from a bottle, by someone working out where it goes. Mistakes happen in that gap between the two.
Kidwelly: how AdBlue in your diesel tank takes place
It's seldom carelessness. Three things tend to line up.
Haste follows from the warning. The car warns you as AdBlue runs low, and an empty tank puts it into limp mode — so the top-up gets done quickly, before work on a driveway off Lady Street, or heading home in the car park outside Masons Arms.
The old car's filler is where the hand reaches — yet a hire car, a new motor or a company car puts the fillers elsewhere. That is the second thing: a strange car.
A spout-topped bottle finds no resistance at a diesel filler any more than at an AdBlue one. And so the pour, once started, carries on. Whether it occurs in Llangadog or the middle of Kidwelly, it is the same few seconds.
Telling the AdBlue filler from the diesel filler
A few seconds is all these take — so run through them before you pour anything, on a driveway in Broadway or a forecourt in Kidwelly.
- Read the cap instead of going by position: AdBlue ones are often blue or marked "AdBlue", and diesel caps normally aren't.
- Many motors give AdBlue the smaller neck of the two.
- Lift the flap and look for a label — plenty of cars mark which goes in each inlet right there.
- Cannot find it beside your diesel inlet? Then look beneath the bonnet or in your boot — the owner's manual says which.
- The person who drove the car last. On a hire or company car picked up from somewhere like the car park outside the nearest station, ask before you leave, not when the light comes on.
Topping up AdBlue without it reaching your diesel tank
Anywhere in Carmarthenshire the light comes on, here is a routine for that day.
- Switch off once parked — level ground, motor off, and not in a rush beside Bridge Street on the verge.
- Find the AdBlue filler, read the cap, and say the name "AdBlue" out loud as unscrewing it. It sounds silly. It does the trick.
- Both behind one flap? So confirm the lid on the diesel side is still shut before lifting the bottle.
- Stop when your tank is topped up or the bottle runs dry; before that, pour slowly using its built-in spout.
- Close the cap and check again. Make sure your diesel cap was never opened. Only then start the car.
If at stage two or three you find you have already poured into your diesel side, stop there. Never carry on to stage five.
Already put AdBlue in your diesel tank in Kidwelly?
Brief order, then. Top of it: the motor remains unstarted. Do not switch the ignition on; on plenty of diesels that alone runs the fuel pump. Diluting it with more diesel fails, since AdBlue settles to the bottom rather than blending — and that is where the fuel is sucked from.
Ask the staff to help roll the car clear of the pump if you're on a forecourt — the Murco, the Asda or anywhere else. If you are on your own driveway around Kidwelly, leave the vehicle where it is.
When your engine has been run by now, stop somewhere safe then switch it off. Come off the M4 — under 15 miles out of Kidwelly — at the first junction. Tell us about how far it went: a run towards Swansea, under 25 miles away, is a bigger job than a short hop across Kidwelly.
Our arrival in Kidwelly, and what takes place next
Our engineers come to your car wherever it has stopped, whether that is outside the local primary school, close to St Mary or on your own drive. Our technicians ask what went in, about how much, and if it's run, because the answers decide the work and our price. No one sets off until you have had our quote over the phone.
Then the tank is cleared and the system rinsed thoroughly. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, so it doesn't wash out on its own. A test is at the end: before that, clean diesel goes in, and the fuel filter is flushed or changed as needed. Next we fire it up and confirm it runs smoothly before we go.
Unrun cars mostly mean a half-hour job after arrival. The kit is safe on a busy filling station, and quiet enough for a driveway after dark. No money in advance; you settle up that day. Afterwards, the VAT invoice and a report from the engineer are handed to you for the insurer. It is worth checking your policy while we travel to you: misfuelling cover comes with many policies.
About Kidwelly and where it is
Kidwelly is a small coastal town in Carmarthenshire, situated near the mouth of the Gwendraeth estuary. Kidwelly has a long history of industrial and maritime activity, with its harbour and surrounding landscape shaping the town's development. Kidwelly sits at a low elevation of around 8 metres, close to nearby places like Llangadog and Mynyddygarreg. Kidwelly is predominantly composed of terraced housing, reflecting its historic growth as a residential centre.
AdBlue drains across Carmarthenshire, Kidwelly included
Kidwelly is a coastal town, and our teams that cover it also work the towns near it, Mynyddygarreg and Kings Wood among them, across the SA postcode area. A postcode starting SA17 4 gets the van to you fastest.
The vehicle does not need to shift. We drain it where it is — a side street close to Castell Cydweli, a lay-by on the way to Parc y Bocs, a drive. Ring and ask instead of assuming if you're near a boundary, or somewhere hard to explain, like the back of Church of Our Lady and Saint Cadoc.
In short, for Kidwelly motorists
Before you pour, read the cap. Petrol in Diesel drains it on the spot, anywhere across Carmarthenshire, if AdBlue has gone in the diesel tank regardless — so leave it off then ring 0333 366 0103.