Don't Start It: AdBlue in a Diesel Tank in Cranfield
If AdBlue has got into your diesel tank, keep the motor off then keep the ignition off. Urea dissolved in water is what AdBlue is. Being water-based, it will not burn and never combines with diesel; trouble just starts once the pump begins drawing it. If your motor hasn't run yet, AdBlue in a diesel tank is generally drained and carefully purged where the car sits around Cranfield. Ring 0333 366 0103 before you do anything else.
Cranfield, AdBlue in your diesel tank: what to do straight away
Do:
- Remove your keys, which stops someone switching the power on.
- Hazards on, if moving traffic is anywhere near.
- Which product, and about how much amount? Hang on to the bottle or the till receipt, and our technicians will see.
- Our van finds you quickest with a postcode starting MK43 0, or just the name of a street close by, and so phone from the car.
Not to do:
- No starting your engine — not for a second, not to reposition the car.
- Don't switch the ignition on. On plenty of diesels that alone runs the fuel pump.
- Pouring in more diesel does not help: AdBlue separates out rather than blending.
- Even a short distance up Orchard Way is too far to drive it.
- No emptying it yourself, either, at the roadside.
On a forecourt around Cranfield, whether it's the Gulf or another one, ask the attendants to help you push the vehicle away from the pump. At your own drive, do not move it at all.
AdBlue in a diesel tank: what it does
The motor is not what AdBlue is made for; the exhaust is. It goes into its own tank and is sprayed into your exhaust gas to clean it. Neither side fits the other: urea doesn't belong in a pump, and a pump can't deal with urea.
Tipped in with the diesel, it stays separate rather than mixing — entirely different from fuel. It sinks, since it's heavier than diesel, and pools low where the pickup draws its fuel from. Once your system runs, the AdBlue is top of the list to be pulled through. Before then it sits beneath the diesel, which is how a vehicle topped up in Broad Green last night and never switched on remains the simple one, provided no one touches your key.
Two kinds of harm follow from there. What remains when the water evaporates is urea, which turns into crystals: they lodge in narrow passages and clog filters. Worse, it eats at some metals in the fuel system, and keeps going till it is flushed out. Pipes holding AdBlue mean damage overnight for a vehicle sitting around Cranfield. Only inside the tank, it stays stable. Water lubricates nothing. The injection pump and each injector need diesel running through them, so the water content damages them by itself.
Why AdBlue in a diesel is commonly more serious than petrol
An issue of thin fuel is what you end up with after fuelling a diesel with petrol from the Essar. It mixes with the diesel, and whilst it's in your tank it does no damage; the damage comes from running your motor on it.
The issue with AdBlue in a diesel is a completely unsuitable substance. Not burning, it can't just be run through. Crystals and corrosion stay through the following fill, and AdBlue separates again from the diesel, so watering it won't work. Hence the flush matters more, and turning the key "to see" does more harm here than nearly any other slip — in Wharley End or the centre of Cranfield equally.
The good news is the same as with petrol. Emptying a tank is the easiest job on any fuel system, and without start-up, the AdBlue stays in it — wherever in Bedfordshire the vehicle has stopped.
Cranfield: how AdBlue ends up in a diesel tank
Plenty of motors place the AdBlue cap alongside the diesel cap, now and then behind one flap, and after dark the two may look identical. Nobody intends it. It usually happens at home, from a bottle grabbed on the journey home, not at the filling station.
The ways it happens are few and familiar. A warning light comes on during the school run, and the top-up happens in a hurry outside Cranfield Church of England Academy. In the evening, a bottle goes in on a driveway near Walk House Close. One more version: darkness, a pub car park outside The Swan, and someone using that flap for the first time.
The least familiar vehicles get it most — hire cars, brand-new cars, company cars, and the spare vehicle in a home with both fuels. Leave it off: that's the first step to an identical mistake, anywhere in Cranfield or the remainder of Bedfordshire you are.
Already started the engine with AdBlue in the diesel tank around Cranfield?
Then that tank is no longer where the AdBlue is. Your filter and lines have had it pulled through, and some running time carries it on to the injection pump and each injector.
Watch for rough running, smoke, falling power, lights on the dash, or a stall — coming back from Tartletts Close, say, or part way across Cranfield. Pull over when it is safe. Switch off. Keep it off rather than testing it again. Every start pulls more of it through.
If you were on the M1, under 3 miles from Cranfield, come off at the next exit and stop somewhere sensible rather than pressing on.
Every mile pushes the AdBlue deeper in. That is why a hop across Cranfield to park near Cranfield Village Hall and a drive of under 10 miles for Milton Keynes are such separate jobs. Let us know about how far it had come.
Once your engine has run, the flush includes more, and all of it is done where the car has stopped. When it is spotted quickly, lasting damage is very uncommon.
Cranfield: how AdBlue is drained from a diesel
We come to the car, wherever it has stopped around Cranfield: a side street close to St Peter and St Paul, a drive, a lay-by or a forecourt. What was put in, roughly how much, plus whether the engine has turned over: our technicians check before all else, because those shape the job.
Then that tank is emptied where your car waits, so the tainted fuel and the AdBlue come out together. The fuel system is purged thoroughly, which matters more with AdBlue than with petrol, because what it leaves behind doesn't rinse out on its own. Next, your filter: cleaned, or changed if it has to be. After that fresh diesel, and then a check of your vehicle. About half an hour on site is usual for most jobs where your engine has not run. Explosion-proof pumps make a live forecourt sensible to work on, and they run quiet enough not to disturb the neighbours at night.
Clean diesel goes in to bleed the fuel system, and that's the last step. Firing it up comes next, and then you set off from where the vehicle is parked, outside Lidlington or on a drive around Cranfield. It's tested on clean diesel to confirm it runs properly before we head off. Our engineers do it all wherever your car has ended up, and it never needs to be taken to a workshop. You get a VAT invoice and an engineer report later, which is what insurers ask for.
About Cranfield
Cranfield is a village in Bedfordshire, situated approximately 43.9 miles north of London and 6.5 miles south of Milton Keynes. Cranfield sits in a rural area at an elevation of around 112 metres, with nearby places including Tartlett End, West End, and East End. Cranfield has a population of around 1801 people, predominantly living in detached houses.
AdBlue drains across Cranfield and Bedfordshire
Tartlett End, West End and East End are among the places around Cranfield that the same teams serve, together with much of Bedfordshire further out, over the MK postcode area. Phone and check instead of guessing when you are close to a county line, or anywhere tricky to explain.
Wherever your car sits — your driveway at home, a side street, a parking area, a forecourt — our technicians drain it there, with no need to bring it to us; that suits Cranfield, a rural village, well.
Cranfield: what AdBlue in a diesel tank costs to fix
There is no fair single quote, since the jobs are not the same. Whether the motor has been running, and for how long, comes first in what shifts the price. How much AdBlue got in comes next, and then the location of the car, because an open driveway is simpler for our van to reach safely than a tight gap behind Cranfield Community Centre.
For that in mind, every call from Cranfield opens with the identical trio — which fluid got in, how much, whether the engine ran — ahead of any quote. The replies turn a range into a straight price.
Before a van sets off, you are told the price by phone. Then you pay on the day, card or over the phone, with nothing in advance. Check your policy while we are on the way: plenty carry misfuelling cover.
In Cranfield and still beside the vehicle?
Not touching your car is, then, the most useful move you can do. Keys out; engine and ignition off. Phone 0333 366 0103: AdBlue, roughly how much, and if the engine ran is everything our technicians ask. Petrol in Diesel takes over the rest throughout Bedfordshire, Cranfield included.