AdBlue in a Diesel Tank in Chesham? Don't Start It
Motor off, ignition off: that is where you begin if AdBlue has got into the diesel tank. AdBlue is urea mixed in water. Unlike fuel, it neither burns nor blends, and nothing happens until the engine sucks it through. In Chesham, AdBlue in a diesel tank found before the engine runs normally means a drain and a thorough flush, just where your car is. Before you do anything else, call 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Chesham
Things to do:
- Take your keys out, so nobody switches the ignition on.
- Close to moving traffic? Then put the hazards on.
- Hold on to your receipt or the empty bottle, so you can tell us what went in and roughly how much.
- The van locates you quickest with a postcode starting HP5 1, or just the name of a street nearby, so call from the spot.
Don't:
- Not even for a second, and not to roll your vehicle: the motor remains off.
- Switching your key to ignition by itself sets the pump running on plenty of diesels. Avoid it.
- No extra fuel on top. The AdBlue will not blend, and so it is pointless.
- Leave the vehicle where it is instead of driving it anywhere, even a short way up Church Street.
- By the road, don't try emptying it on your own.
At a forecourt around Chesham, whether it's the BP or another one, ask the attendants to help you roll the car away from the petrol pump. At home, the vehicle remains exactly as it is.
What AdBlue does in a diesel tank
Not your motor but your exhaust is where AdBlue belongs. Kept in a dedicated tank, it's squirted into the exhaust stream to treat the fumes. Neither side fits the other: urea does not belong in an injection pump, and a pump cannot deal with urea.
Fuel blends; AdBlue, once tipped in, will not. The behaviour is nothing like fuel's. It is heavier than diesel, so it sinks and gathers at the bottom of your tank, which is where the pickup draws fuel from. A vehicle filled on a driveway in Newtown overnight and not started since counts as the straightforward one. Nothing has sucked the AdBlue up yet — though when the motor runs, that's what is pulled first, directly from the bottom of your tank.
It does two kinds of harm from there. It eats at some metals used in fuel components, working on any part it reaches till it is cleared completely. And once the water evaporates, the urea forms crystals that clog filters and settle in tiny channels. Overnight, a vehicle sitting around Chesham with AdBlue through its pipework gets worse; if it is just inside that tank, nothing changes. 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 often the bigger issue?
A fault of thinned fuel is what you get from fuelling a diesel with petrol at the Esso. Mixed into your diesel and left unused, it's no threat at that stage; running the motor does the damage.
The trouble with AdBlue in a diesel is a completely unsuitable liquid. It cannot just be run through, since it doesn't burn. Crystals and corrosion stay through the following tankful, and AdBlue splits back from the diesel, and so watering it can't help. That is why the flush counts so much, and turning your key "to see" does more harm here than nearly any other slip — in Griffitts Yard or the heart of Chesham alike.
The good news is the same as with petrol. Wherever around Buckinghamshire your car has stopped, an unrun motor means the AdBlue yet in the tank: the easiest part of any fuel system to clear.
How AdBlue ends up in a diesel tank around Chesham
After dark, two caps together — the AdBlue cap and the diesel cap, occasionally under a single flap — may appear the same. No one intends it; many layouts allow it. Mostly it happens with a bottle bought on the way home and poured in on the driveway, not at the forecourt.
A couple of familiar ways cover the majority of them. A warning light comes on during the school run, and the top-up takes place in a hurry outside Thomas Harding Junior School. Near St Marys Way, someone pours a container in on that drive after work. Or the vehicle is topped up in the car park at George and Dragon, in poor light, by somebody who has never opened that flap before.
The least known cars get it the most — hire cars, new cars, fleet cars, and the spare motor in a family with both fuels. Leave it switched off: that is the first step to the same mistake, anywhere in Chesham or the rest of Buckinghamshire you are.
AdBlue in the diesel tank around Chesham, and your engine started?
The AdBlue has left your tank, then. It has been pulled through your filter and the fuel lines, and if the engine ran for any time, it has reached your high-pressure pump and the fuel injectors.
Maybe coming back from Lowndes Park, or part way across Chesham, the motor may go rough, smoke, lose pace, flash the dash or cut out. Stop as soon as it is safe, switch off, and don't restart it to check. Each start pulls more of it through.
Chesham lies under 10 miles from the M25; if you were on it, leave at the first junction and pull up somewhere safe rather than driving on.
Mileage counts: each mile pushes the AdBlue further in, and so driving towards St Albans, under 15 miles away, gives a much larger job than crossing Chesham to the car park by Temperance Hall / The Little Theatre by the Park. Approximately how far had it come? Tell us.
We do all of the rinsing where the car has come to a stop, and once the engine has been run there is more of it. When it is caught soon, long-term damage is very rare.
Chesham: how AdBlue is cleared from a diesel
The car remains where it is, whether that's a street beside Chesham Clock Tower, a drive, a layby or a forecourt in Chesham, and the van comes to it. Three answers decide the job, so before anything else we ask what went in, about what quantity, and if the engine has turned over.
The polluted diesel and the urea come out together when that tank is drained, right there. Residue from AdBlue won't flush away by itself, so the whole system gets a full flush, which counts far more here than with petrol. Your filter is flushed, or replaced where it needs to be; clean diesel goes in; and your car is tested. Roughly half an hour on site is usual for most jobs where the engine hasn't run. The equipment is explosion-proof, so a live filling station is no issue, and it's quiet enough for a residential street after dark.
The final step is to prime your system on clean diesel. Starting the car comes next, and then you set off from where the vehicle is parked, outside Amersham or on a driveway around Chesham. We confirm it runs smoothly on new diesel before we leave. Because the job is done in its entirety where the vehicle is, a workshop never comes into it. You receive a VAT invoice and an engineer report later, which is what insurers want.
About Chesham itself
Chesham is a town situated in the Chiltern Hills in Buckinghamshire, lying on the River Chess at an elevation of around 101 metres. Chesham has a mix of housing types, but is predominantly characterised by terraced homes, and is located near to other local areas such as The Broadway and Pednormead End. Chesham is also close to the nearby Waterside area and is within commuting distance of London, being approximately 24.9 miles from the city. Chesham has a population of around 15588 people and is a significant settlement in the region.
AdBlue drains across Chesham and Buckinghamshire
The vans that answer AdBlue call-outs in Chesham also cover the spots around it, The Broadway, Pednormead End and Waterside among them, and most of Buckinghamshire beyond, across the HP postcode area. Ring and ask rather than guess when you're close to a border, or somewhere awkward to explain.
Chesham is a riverside town, and a mobile drain suits it: whether your car is on a home drive, a residential street, a car park or a forecourt, our engineers drain it where it sits, so it never needs to be moved to us.
What does AdBlue in a diesel tank cost to sort out in Chesham?
Because each jobs vary, a flat figure wouldn't be honest. Three things shift the price: whether your engine has been running and for how long, how much AdBlue was put in, and where your car is. That last one comes down to whether a technician can reach it safely, and an open driveway is easier than a tight gap behind Chesham Town Council.
Which fluid got in, how much, and if it ran: each Chesham enquiry begins with precisely that, ahead of a figure, never after. With them, a range shrinks to one firm number.
You hear that quote by phone, before anybody heads out, and you pay on the day, by card or by phone, with nothing upfront. Many insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way.
In Chesham and still alongside the car?
Leaving your vehicle alone is, then, the best move open to you. Motor off, keys out, ignition off. Call 0333 366 0103: AdBlue, roughly how much, plus whether it ran is everything we ask. Petrol in Diesel takes over the rest across Buckinghamshire, Chesham included.