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Petrol in Diesel

0333 366 0103

Avoiding AdBlue in a Diesel Tank in Brook End: Why It Happens

If AdBlue is already in your diesel tank, stop reading for a moment: leave the motor and the ignition off then call 0333 366 0103. Normally, if your motor hasn't run, it's emptied and thoroughly rinsed where your car sits in Brook End. Reading in advance? Then the rest explains why it comes about and how to prevent it ever happening.

Call 0333 366 0103

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

Diesel feeds the engine — yet plenty of newer diesels seen around Brook End and West End carry another liquid too. Kept in a tank of its own, AdBlue is sprayed into the exhaust stream and cleans it.

Different tanks, separate fillers. Under one flap, next to each other: that's the arrangement on a lot of motors. On others, AdBlue's filler is beneath the bonnet or in your boot instead. At the pump, the diesel side gets filled constantly. The AdBlue side is fuelled far less often, normally from a bottle, and usually by somebody who has to stop and think where it goes. That gap is where the slip lives.

Brook End: how AdBlue in your diesel tank happens

Carelessness rarely causes it. Instead is three things lining up at once.

First, the warning. Low AdBlue triggers a message from the vehicle, and running out means limp mode — hence a hurried top-up, perhaps before work off Brook End, perhaps outside The Chequers Inn on the way home after work.

Unfamiliar motors are second, as well. Rentals, new vehicles and company cars put their fillers differently, and habit reaches for the cap it used on the old one.

No part 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. Whether it happens in Bye Green or the middle of Brook End, it is the same few seconds.

Flushing a diesel fuel system after AdBlue, Brook End

Which filler is for AdBlue, and which for diesel?

A few seconds is all the checks take — so run through them before you pour anything, on a driveway in Aston Clinton or a forecourt around Brook End.

  • Where it sits can mislead; the cap doesn't. AdBlue caps tend to be blue or bear the name "AdBlue" — diesel caps usually do not.
  • Many vehicles fit AdBlue the smaller filler of the two.
  • Check inside the fuel flap: many vehicles carry a label there saying which fuel goes where.
  • Can't see it beside your diesel inlet? In that case check below the bonnet or in the boot — the owner's manual will say which.
  • The previous driver knows. Check as you pick up a rental or fleet car — from Stoke Mandeville's car park, perhaps — not once the light appears.

AdBlue top-ups that never reach your diesel tank

On the day the light comes on — anywhere you are across Buckinghamshire — a routine to follow.

  • Turn off once parked — level ground, engine stopped, and not rushed by Anstey Brook at the roadside.
  • Silly as it sounds, saying "AdBlue" aloud while you unscrew the cap does the trick — once you've located your filler and read it.
  • Leave the diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle.
  • Gently is best, through the bottle's own spout, until it is full or the bottle runs out.
  • Shut the cap, then check again — making sure the diesel cap remained shut the whole time. Only then, start the car.

Discover at the second or third stage that the bottle went into the wrong tank? That's where you stop. Never carry on to step five.

AdBlue in the diesel tank already, in Brook End?

The short order of things, starting with no starting the motor. On plenty of diesels your ignition alone runs the fuel pump, and so do not switch the car on. Thinning it with extra diesel won't work, because AdBlue settles to the bottom instead of mixing — and that is where the fuel is drawn from.

On a forecourt — the nearest petrol station, Shell or any other — the attendants will normally help push the car clear, when you ask. Your own driveway in Brook End is the place it stays.

If the motor has already run, stop as soon as it is safe then switch off. The next junction means the place to come off when you're on the M40, under 15 miles from Brook End. Tell us about how far it went: a run towards Milton Keynes, under 25 miles away, is a bigger job than a short hop across Brook End.

Our arrival in Brook End, and what takes place next

Our technicians come to your car wherever it has stopped, whether that is outside Weston Turville Church of England School, close to Weston Turville Village Hall or on your own drive. What liquid got in, the quantity, and if it ran: our engineers ask since those answers decide both work and price. That quote comes over the phone, ahead of any van leaving.

The system is then flushed thoroughly, after that tank is emptied. Much more than with petrol, it matters with AdBlue: crystals build up, certain metals corrode, and none of it clears out unaided, no matter how long it sits. Once your filter is flushed — or replaced, where required — fresh diesel goes in, and then your car gets tested. We do not leave until it has been fired up and is running properly.

Unstarted vehicles usually need a half-hour job after the moment we arrive. The kit is fine on a busy filling station, and hushed enough for a driveway late at night. Paying happens on the day, not upfront, and you receive the documents your insurer asks for: an engineer's report and a VAT invoice. Misfuelling cover is part of plenty of insurance policies — and so make use of the wait to check yours.

About Brook End

Brook End is a suburban area in Buckinghamshire, situated inland at an elevation of 97 metres, and is located approximately 33 miles from London. Brook End is characterized by its predominantly detached housing stock, reflecting the area's residential development. Brook End sits near other local places, including Bye Green, Church End, and Weston Turville, and is close to the city of Milton Keynes, which is about 17 miles away. Brook End has a population of around 1302 residents.

AdBlue drains across Buckinghamshire, Brook End included

Church End and Weston Turville are among the places around Brook End, a residential suburb, that the same teams cover, throughout HP postcodes. Quickest of all: quote a HP22 5 postcode to our van.

Moving your car isn't necessary. Anywhere it sits — near St Mary the Virgin, in a layby en route to Weston Turville Shop Park, at home — that's where it gets emptied. Assuming doesn't help behind Halton Tennis Club, on a border, or somewhere awkward to describe; phone and ask.

The short version for Brook End drivers

Read the cap before you tip. If AdBlue has gone in your diesel tank all the same, leave the car off and phone 0333 366 0103. Petrol in Diesel drains it where it sits, anywhere across Buckinghamshire.

Call 0333 366 0103