Childerley Gate: AdBlue in the Diesel Tank? Leave It Off
If AdBlue has gone into your diesel tank, keep your motor off and keep the ignition off. Chemically, AdBlue is just urea in water. It doesn't burn, it does not mix with diesel, and the harm it does starts when the system draws it in. A drain and a thorough flush, done where the vehicle is in Childerley Gate, is generally what AdBlue in a diesel tank takes — if it is caught before the motor has run. Before anything, phone us on 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Childerley Gate
Do these:
- Keys out — that way nobody can power anything on.
- Hazards on, if moving traffic is anywhere near.
- The empty bottle or the till receipt tells us the fluid and the amount, and so do not throw it away.
- Ring just where you are. Say a CB23 8 postcode or the nearest street name, and no one has to search for you.
Don't do these:
- No starting your motor — not briefly, not to shift the car.
- The ignition stays off: on many diesels, switching it on is enough to run the fuel pump.
- No extra fuel on top. The AdBlue will not mix, so it's pointless.
- Keep it where it is rather than driving it anywhere, even a short way along St Neots Road.
- Draining the tank yourself beside the road isn't worth trying.
Moving the vehicle off the pumps is a job for staff to help with, wherever Childerley Gate forecourt you are on, the BP included. On the drive, the vehicle stays exactly as it was left.
What AdBlue does in a diesel tank
The engine is not what AdBlue is made for; the exhaust is. Its own reservoir holds it, and from there it is sprayed into your exhaust, where it treats the fumes. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is designed to handle it.
Inside a diesel tank it behaves very differently from fuel. It doesn't mix in. Denser than diesel, it sinks and pools below it — the very place the pickup draws from. The first thing the fuel system pulls through, once it runs, is the AdBlue. So a motor that had AdBlue poured in on a drive in Upper Cambourne last night, and has not been started since, is still the simple case: the AdBlue is lying at the bottom of the tank, and nothing has drawn it in.
From there it causes two kinds of harm. What remains when the water evaporates is urea, which turns into crystals: they settle in tiny channels and clog filters. Worse, it attacks some metals in a fuel system, and keeps going till it's cleared out. A motor left standing in Childerley Gate with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank is not. The water in it does harm of its own: the high-pressure fuel pump and the fuel injectors rely on diesel to lubricate them, and water offers them nothing.
Why is AdBlue in a diesel regularly the bigger fault?
An issue of thin fuel is what you get from filling a diesel with petrol at the Morrisons. Blended into the diesel and sitting unused, it is no threat for now; running the motor is the harm.
AdBlue in a diesel is a problem of the wrong substance altogether. Not burning, it can't just be run through. Whether your car sits in Caldecote or the centre of Childerley Gate, turning it over "to see" does more harm with AdBlue than almost any other error, and the flush counts more. Why: it will not remain mixed, so diluting it fails; and crystals and corrosion outlast the following tankful.
The same good news applies as with petrol. Emptying a tank is the simplest job on any fuel system, and with no start-up, the AdBlue stays in it — anywhere around Cambridgeshire the car sits.
AdBlue in a diesel tank around Childerley Gate: how it ends up there
It's not on purpose. Many vehicles have the AdBlue cap alongside the diesel one, now and then behind one flap, and mixing them up is easy in poor light. A bottle picked up while driving home and tipped in outside the house, rather than at the forecourt, is the usual story.
A couple of familiar ways account for the majority of them. Halfway through the morning drop-off, the dashboard flags it up, and outside Caldecote Primary School the refill is hurried. After work, a container is tipped in on a drive near Highfields Court. One more pattern: darkness, a pub car park outside the pub in the village, and someone using that flap for the first time.
Hired cars, new motors, fleet motors, or the second vehicle in a home with both fuels: the least familiar cars get it most. Wherever you are around Childerley Gate or the remainder of Cambridgeshire, it is the same error and the same first answer: leave it off.
Childerley Gate: started the engine with AdBlue in the diesel tank?
If so, the AdBlue is no longer inside that tank. With any running, it goes on to the injection pump and each injector, having passed through the filter and pipework.
Expect rough running, smoke, falling power, lights on the dash, or a stall — coming back from New Barns Plantation, say, or part way across Childerley Gate. When safe, pull over then switch it off — without turning it on again to see. Each start pulls more of it through.
On the M11, under 5 miles from Childerley Gate, the next junction is where to exit, and anywhere sensible is where to park — not carrying on.
Distance matters: each mile carries the AdBlue further into your system, so heading for Cambridge, under 10 miles away, gives a much larger job than hopping across Childerley Gate to the car park by Caldecote Village Club. Approximately how far had it come? Tell us.
Wherever your car came to a halt is where all of it gets done, even with more to flush after the engine has been run. When it is caught early, lasting damage is very uncommon.
What clearing AdBlue from a diesel involves in Childerley Gate
A street by Caldecote Village Hall, a drive, a lay-by or a filling station: anywhere your vehicle has stopped around Childerley Gate, we come to it. Before anything else we ask what was put in, about how much, and if the motor has been run, since those answers determine the work.
Then that tank is cleared where your car stands, so the polluted fuel and the AdBlue come out together. A full flush matters far more after AdBlue than with petrol, because residue will not wash away on its own. The filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. Roughly half an hour on site is typical for most jobs where the engine hasn't run. Quiet enough for use outside a house at night, and safe on a working forecourt, our pumps are explosion-proof.
Priming the fuel system with new diesel comes at the end. Whether it is a parking bay outside Cambridge or a drive around Childerley Gate, that is where we start the car and you set off. The test before our engineers go is that it runs properly on clean diesel. No garage is required at any stage, with the whole job done then and there. You get a VAT invoice and an engineer report later, which is what insurers ask for.
About Childerley Gate itself
Childerley Gate is a village in Cambridgeshire, situated near the River Cam and close to the city of Cambridge. Childerley Gate sits at an elevation of 73 metres, with its detached houses reflecting the local architectural style. Childerley Gate is located near several other small villages, including Highfields Caldecote and Childerley, and is within commuting distance of London.
AdBlue drains around Childerley Gate and across Cambridgeshire
AdBlue call-outs in Childerley Gate are passed to vans that serve the towns near it — Highfields Caldecote, Childerley plus Hardwick — and much of Cambridgeshire further out, throughout CB postcodes. Assuming won't help close to a county line or somewhere tricky to describe; ring and ask.
A van that comes to you suits Childerley Gate, a village: you have no need to take your vehicle to us, since our engineers drain it on the spot, on a drive, a residential street, a parking area or a filling station.
What does AdBlue in a diesel tank cost to sort out around Childerley Gate?
Since each jobs differ, a single price would not be honest. What shifts the cost is, first, whether your engine has run and for how long; then how much AdBlue got in; and after that where the car is and whether a van can reach it safely, which is simpler on an open driveway than in a tight spot behind The Cabin.
With that in mind, each enquiry from Childerley Gate begins by asking the identical trio — what was put in, what quantity, if the engine ran — ahead of any figure. When they are answered, a range becomes one fixed figure.
Our price is quoted during the call, before anyone sets off; settling up happens on the day, by card or over the phone, and nothing upfront. Misfuelling cover is part of plenty of insurance policies, so it pays to look at yours before the van arrives.
Beside the vehicle in Childerley Gate, right now?
In that case, touch nothing — that's the best move there is. Engine off, keys out, ignition off. Petrol in Diesel handles the remainder, in Childerley Gate or wherever within Cambridgeshire, after you phone 0333 366 0103 to say it was AdBlue, roughly what quantity, and if it ran.