AdBlue in the Diesel Tank in Coate? Keep It Switched Off
If AdBlue has got into your diesel tank, keep your engine off and leave the ignition off. AdBlue is urea mixed in water. The harm starts once it is sucked through your pump — it won't burn, and it won't blend with diesel. If the motor hasn't run yet, AdBlue in a diesel tank is usually emptied and thoroughly purged where your car sits around Coate. Before anything, phone us on 0333 366 0103.
AdBlue in your diesel tank in Coate: the first few minutes
Things to do:
- So nobody can turn your ignition on, pull the keys away.
- Put the hazards on if you are anywhere close to moving traffic.
- The empty bottle or the till receipt shows us the fluid and the quantity, so do not throw it away.
- Tell us a postcode starting SN3 2, or whatever street is closest, and our van finds you straight — so ring wherever you stand.
Never:
- Not even briefly, and not to roll your car: your engine stays off.
- Do not switch your ignition on. On plenty of diesels that alone runs the fuel pump.
- AdBlue does not mix in diesel — it separates out — so adding more fuel won't thin it.
- Don't drive it anywhere, not even a short distance along Marlborough Road.
- Beside the road, don't attempt emptying it on your own.
Rolling your car off the pumps is a job for attendants to help with, whichever Coate forecourt you're on, the Shell included. At your own drive, don't touch it at all.
What AdBlue does in a diesel tank
AdBlue is made for the exhaust, not the motor. From a dedicated tank it is fed directly to your exhaust, cleaning what your engine emits. No part inside an injection pump is made for this fluid — and no part of that was intended to go through one.
Fuel blends; AdBlue, after tipped in, will not. The behaviour is not at all like diesel's. It sinks, since it is denser than diesel, and settles low where the pickup draws its supply from. A car filled on a driveway in Badbury Wick yesterday evening and left unstarted counts as the straightforward case. No pump has sucked the AdBlue up so far — but when the engine runs, that is what is pulled first, directly from the bottom of the tank.
It causes two kinds of damage from there. It eats at some metals found in fuel components, working on whatever it touches until it's removed from your system. And when the water evaporates, the urea turns into crystals that block filters and lodge in tiny channels. If the AdBlue is in the lines, waiting overnight in Coate leaves things worse. Inside that tank alone, waiting costs nothing. The water in it does harm of its own: the high-pressure pump and the injectors depend on diesel to lubricate them, and water gives them nothing.
Why AdBlue in a diesel is regularly more serious than petrol
Put petrol in a diesel at the BP and you have a problem of thin fuel. Damage just comes from running on it. Mixed into your diesel and left inside your tank, it does none.
AdBlue in a diesel is another matter: not thin fuel, but no fuel at all. It does not burn, so it cannot just be run through. Deposits and corrosion stay through the next tankful, and AdBlue splits back out of the diesel, so thinning it can't work. Hence the flush matters so much, and trying the engine "to see" costs more with AdBlue than nearly any other slip — in Dorcan or the heart of Coate equally.
The good news is the same as with petrol. Emptying a tank is the simplest job on any fuel system, and with no running, the AdBlue remains in there — wherever in Wiltshire your vehicle sits.
Coate: how AdBlue ends up in a diesel tank
Many motors put the AdBlue filler beside the diesel cap, occasionally under a single flap, and after dark the two can appear the same. Nobody means it. It mostly takes place at home, from a bottle grabbed on the journey home, rather than at the forecourt.
Mostly, it takes place in one of a couple of familiar ways. A warning light comes on during the school run, and the top-up occurs in a hurry outside Oaktree Nursery and Primary School. A bottle is poured in at the end of the day on a drive just off Queens Drive. Another version: dim light, a pub car park outside The Sun Inn, and someone opening that flap the first time.
It happens most in the motors motorists know least: a hire car, a new motor, a company car, or the second car of a household with one diesel and one petrol. Same mistake, same first response — leave it off — wherever you happen to be in Coate or the rest of Wiltshire.
Already started your engine with AdBlue in your diesel tank in Coate?
Then your tank is no longer where the AdBlue is. The fuel filter and pipework have had it pulled along, and some running carries it on to the injection pump and each injector.
Rough running, smoke from the exhaust, dropping power, dashboard lights or stalling: any may appear, perhaps midway across Coate or coming back from Coate Tree Collection. When you safely can, stop then turn it off — without turning it on again to see. Each start pulls more of that through.
If you were on the M4, under 3 miles from Coate, come off at the next exit and stop somewhere safe rather than pressing on.
Every mile carries the AdBlue deeper into the system. That's why crossing Coate to park near Richard Jefferies Museum and a drive of under 50 miles towards Oxford are such separate jobs. Roughly how far had it come? Tell us.
Once the motor has been started, the flush includes more, and all of it is done where your car has come to a stop. If it is caught quickly, lasting damage is very uncommon.
What emptying AdBlue from a diesel involves around Coate
We come to the car, wherever it has stopped in Coate: a side street near Park South Community Centre, a drive, a lay-by or a forecourt. What went in, roughly how much, plus if the motor has turned over: our engineers check before all else, since those shape the job.
Right there, the tank is then drained, and both the polluted diesel and the urea come out as one. A careful flush counts much more with AdBlue than with petrol, because residue will not clear away on its own. Fresh diesel goes in after the fuel filter is flushed — or swapped, if it needs to be — and then your car is tested. Not run? Then count on roughly half an hour on site for most jobs. The pumps are explosion-proof, safe on a working forecourt and quiet enough to use outside a house at night.
Clean diesel goes in to bleed the fuel system, and that is the final step. Whether it is a parking space at Swindon or a driveway in Coate, that is where we start the car and you head off. It's tested on clean diesel to make sure it runs correctly before our engineers head off. As the job is done in full where the car is, a workshop never comes into it. Your insurer will want an engineer's report and the VAT invoice — each handed over afterwards.
About Coate
Coate is a suburban area in Wiltshire, situated lakeside at an elevation of 108 metres, with a mix of terraced housing and local amenities. Coate lies near the outskirts of Swindon, close to nearby places such as Liden, Lawn, and Eldene, and is within commuting distance of Oxford. Coate has a population of around 4020 residents, making it a small but established community. Coate is also relatively close to major cities, with London approximately 69.6 miles away.
AdBlue drains across Wiltshire, Coate included
The teams that answer AdBlue call-outs around Coate also cover the places around it, Liden, Lawn and Eldene among them, and most of Wiltshire beyond, across the SN postcode area. If you're close to a boundary, or somewhere hard to explain, ring and ask rather than guessing.
Coate is a residential suburb, and an on-site drain suits it: whether the car is on a home drive, a residential street, a car park or a forecourt, our technicians drain it where it sits, so it never needs to be shifted to us.
What does AdBlue in a diesel tank cost to sort out in Coate?
Each job differs, and so not one fixed quote would be fair. The price moves first with how long, if at all, the engine has been running, and next with the quantity of AdBlue that was put in. After that it rests on where your car is and whether our van can get to it safely, which is simpler on an open driveway than in a tight gap behind Day House Lane Stone Circle.
For that in mind, every call from Coate begins by asking the same trio — what got in, how much, if it ran — before a quote. Those answers turn a range into a straight price.
Our price is quoted during the call, before anyone leaves; payment happens on the day, by card or by phone, with nothing upfront. Misfuelling cover comes with many insurance policies, so it pays to look at yours before the van gets there.
Coate: still beside the vehicle?
Then the most handy thing you can do is nothing to the car. Keys out, motor off, ignition off. Petrol in Diesel handles the rest, in Coate or wherever in Wiltshire, once you phone 0333 366 0103 to say it was AdBlue, about what quantity, and if it ran.