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Necton: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It?

Keep the engine and ignition off and call 0333 366 0103 now — reading can wait if AdBlue is already in your diesel tank. Usually, if the motor hasn't turned, it is drained and fully purged where your car sits around Necton. Nothing happened yet? Below, the rest of the page explains the why it takes place and the how to prevent it for good.

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Why does AdBlue in a diesel vehicle need its own filler?

Diesel feeds your motor — but plenty of modern diesels seen round Necton and Sporle carry another fluid too. Kept in a tank of its own, AdBlue is sprayed into your exhaust stream and cleans it.

There is a filler for every tank. Some vehicles keep the AdBlue filler in the boot or under the bonnet; a lot more place both side by side under one flap. At the petrol pump, the diesel side gets filled all the time. The AdBlue side is fuelled far less commonly, usually from a bottle, and usually by someone who has to stop and think where it goes. That gap is where the mistake lives.

How does AdBlue in your diesel tank happen in Necton?

Carelessness seldom causes it. Instead is three things coming up at once.

To start with, the warning. Low AdBlue triggers a message from the car, and letting it run out leads to limp mode — hence a rushed top-up, maybe before work off The Grove, or outside the pub in the village on the way home after work.

Then, your hand reaches for the cap it would have used on the old vehicle — since a rental car, a new car or a company car puts the fillers where your last one did not.

Nothing stops the pour once it has started, because a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. Ivy Todd or the middle of Necton: it takes the same few seconds either way.

Flushing a diesel fuel system after AdBlue, Necton

Telling the AdBlue filler from the diesel filler

Check these before pouring, at a forecourt in Necton or a drive out in Little Dunham. Seconds, that's all.

  • Position can mislead; the cap doesn't. AdBlue ones are often blue or bear the name "AdBlue" — diesel caps usually don't.
  • Check the size: the smaller neck is, on many cars, the AdBlue one.
  • Open the filler flap and check for a label — many motors show what belongs in each filler right there.
  • The handbook says where it lives when your filler isn't next to your diesel cap: your boot, or under the bonnet.
  • The previous driver will know. Ask as you collect a rental or fleet car — from the nearest station's car park, say — rather than when the light appears.

How to top up without AdBlue in your diesel tank

When the light goes on, anywhere in Norfolk, use this routine.

  • Switch off after you park — level ground, motor off, and never rushed by Tuns Road at the roadside.
  • Daft as it sounds, saying "AdBlue" aloud as you unscrew the cap works — after you have located the filler and read it.
  • The diesel cap remains on. When the two share a flap, make sure it's shut before lifting the bottle.
  • Slowly is best, through the bottle's own spout, till it's full or the bottle runs out.
  • Only then, start the vehicle: close the cap, check once more, and make sure the diesel cap was never opened.

Find during the second or third step that AdBlue went in the wrong filler? That is where you stop. Never go on to stage five.

Put AdBlue in your diesel tank in Necton already?

Then the order of things is short. Do not start your motor. Do not switch the ignition on; on many diesels that alone runs the fuel pump. Don't top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of that tank, where the fuel is sucked from.

If you are at a forecourt, whether it is the ASDA or the BP, ask the staff to help push the vehicle away from the pump. Leave it where it is if you're on your own driveway in Necton.

If your motor has already run, stop as soon as it is safe then switch off. Leave the M11 — under 50 miles out of Necton — at the first exit. Mileage matters — a short hop across Necton makes a smaller job than driving under 25 miles towards Norwich — so tell us roughly how far it went.

Necton: what occurs when we turn up

Our van comes to the vehicle wherever it has come to rest — your own driveway, near Necton Village Sign, or outside Necton VA Primary School. Both the work and our price depend on three replies — which fluid, which quantity, and whether it has run — so our technicians ask. No one sets off before you have had the price over the phone.

The system is then cleaned thoroughly, once your tank is drained. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own — which is why that matters more with AdBlue than with petrol. Once the filter has been cleaned — or replaced, where needed — fresh diesel goes in, and finally the car gets tested. The motor is fired up next and tested to confirm it runs properly, all before we leave.

Most jobs are finished in roughly half an hour once our engineers get there, provided the engine hasn't run — and the pumps our technicians use are safe on a live forecourt yet quiet after dark outside a house. No money upfront; you settle up on the day. Afterwards, a VAT invoice and a report from the engineer are handed to you for the insurer. Plenty of insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way.

About Necton, for a moment

Necton is a rural village in the Eastern region of England, situated approximately 54 metres above sea level in inland Norfolk. Necton lies near several smaller settlements, including Ivy Todd, Holme Hale, and West End, and is about 21.8 miles from Norwich. Necton has a population of around 1129 people and is characterised by predominantly detached housing. Necton is also relatively distant from London, at a distance of around 87.9 miles.

AdBlue drains across Norfolk, Necton included

Holme Hale and West End are among the places near Necton, a rural village, that the same vans cover, throughout PE postcodes. The van reaches you fastest with a postcode starting PE37 8.

The vehicle does not need to move. The drain takes place on the spot, be it a drive, a road near All Saints, or a layby towards Scarlett's Plantation. Guessing won't help behind Necton Village Hall, close to a border, or anywhere hard to pin down; phone and ask.

For Necton motorists, the short version

First, the cap; then, the pour. If AdBlue has gone in your diesel tank all the same, leave it off then ring 0333 366 0103. Petrol in Diesel clears it where it sits, anywhere around Norfolk.

Call 0333 366 0103