--- title: Explained: AdBlue in a Diesel Tank Browns Green canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/browns-green-west-midlands/ location: Browns Green county: West Midlands latitude: 52.521360 longitude: -1.935110 service: AdBlue in a Diesel Tank updated: 2026-10-23 --- # How It Occurs and How to Avoid It: AdBlue in a Diesel Tank in Browns Green If AdBlue is already in your diesel tank, stop reading for a moment: leave your engine and the ignition off then phone 0333 366 0103. In Browns Green, finding it before the engine turns normally means draining and a thorough flush on the spot. The rest of this page explains why it takes place and how to make sure it doesn't — useful if you are reading before it has happened. ## Two fillers, two tanks: AdBlue in a diesel vehicle Plenty of newer diesels on the roads around Browns Green and Hamstead carry two liquids, not one. Diesel goes to the engine. Your exhaust, not your engine, is where AdBlue goes: dosed into the gas to fresh them, from its own tank. Each tank comes with a filler of its own. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Topping up your diesel side at the petrol pump happens all the time. Seldom filled, AdBlue normally comes out of a bottle, tipped by someone who has to stop and think what filler it needs. Mistakes happen in the gap between them. ## How does AdBlue in the diesel tank take place around Browns Green? Seldom is it carelessness: normally three things coincide. On a driveway off Beechglade before work, or in the car park outside The Garden Gate heading home: that's where the rushed top-up happens. What is the reason for the rush? As AdBlue gets low your car warns you, and if it is empty, limp mode kicks in. Unfamiliar cars come next, as well. Hire cars, new motors and company vehicles put their fillers differently, and the hand reaches for the cap used on the old one. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, and so nothing stops the pour after it has started. The same few seconds decide it, in the middle of Browns Green or out in Handsworth Wood. ## Telling the AdBlue filler from the diesel filler A few seconds is all these take — so check them before you tip anything, on a driveway in Tower Hill or a forecourt in Browns Green. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". The diesel cap normally is not. Read it instead of going by where it sits. - On plenty of cars, the size tells: AdBlue gets the smaller filler neck. - Open the filler flap and look for a label — many cars show which belongs in each inlet right there. - The handbook. If the filler isn't by the diesel cap, it is in your boot or under the bonnet, and the handbook says which. - Picking up a hire or company car, say at the car park at Hamstead? Check with whoever drove it last before leaving, not once the light goes on. ## AdBlue top-ups that never reach the diesel tank Wherever around West Midlands the light comes on, here is a routine for the day. - Switch off after you park — flat ground, motor off, and never rushed beside Hamstead Hall Road on the verge. - Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and reading it. Daft, yes, but it works. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave it on. - Gently does it, through the bottle's own spout, until it's full or the bottle runs out. - Before you start your car, close the cap and look a second time that your diesel cap never opened off. If at step two or three you find you have already poured into the diesel side, stop there. Don't go on to stage five. ## Browns Green: already put AdBlue in the diesel tank? Brief list, then. First: your engine remains off. Keep your ignition off as well, since on plenty of diesels switching it on alone runs your pump. Do not top up with diesel to dilute it: AdBlue does not mix with diesel, it sinks to the bottom of that tank, where your fuel is sucked from. If you're at a forecourt, whether it's the Esso or the Shell, ask the attendants to help push the vehicle clear of the petrol pump. On your own drive around Browns Green? So the car stays where it is. Where your engine has been run by now, pull over somewhere safe and switch the car off. The next junction is the place to come off when you're on the M5, under 3 miles from Browns Green. About how far did it go? Crossing Browns Green is smaller work than a trip of under 5 miles towards Birmingham, and so tell us. ## When our technicians get there in Browns Green, what happens? Outside Grestone Academy, near Elmwood United Reformed Church or on your own drive: wherever your car has stopped, we come to it. We ask what got in, roughly how much, and if it's run, since those answers determine this work and our quote. That price comes over the phone, before any van leaves. The system is then rinsed thoroughly, after the tank is cleared. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own — which is why the flush matters more with AdBlue than with petrol. Filter flushed or, where needed, replaced; clean diesel in; then a test of the car. The motor is fired up next and checked to be sure it runs smoothly, all before we go. Unrun cars mostly mean a half-hour job after arrival. The kit is fine on a busy forecourt, and hushed enough for a driveway late at night. No money in advance; you settle up that day. Afterwards, the VAT invoice and the report from the engineer are handed to you for the insurer. Misfuelling cover is included in plenty of insurance policies — so use the wait to look at yours. ## About Browns Green and where it is Browns Green is a locality in the West Midlands, situated approximately 3 miles north of Birmingham city centre. Browns Green sits at an elevation of around 136 metres, in a predominantly residential area with a mix of housing types, although semi-detached homes are most common. Browns Green is close to nearby places such as Handsworth Wood, Perry Barr, and Handsworth, and is home to around 5176 residents. Browns Green forms part of the larger Birmingham urban area, with the city's amenities and services within easy reach. ## AdBlue drains in Browns Green and across West Midlands Browns Green is a small village, and the vans that cover it also work the towns near it, Perry Barr and Handsworth among them, across the B postcode area. Quote a postcode beginning B20 1, and the van arrives quickest. Shifting the vehicle is not needed. We drain it where it is — a side street close to Singh Sabha Gurdwara, a lay-by on the way to Cherry Orchard Recreation Ground, a drive. Ring and ask instead of guessing if you are near a border, or somewhere hard to explain, like the back of Oaklands New Church Centre. ## In short, for Browns Green people First, the cap; then, the pour. Petrol in Diesel drains it where it stands, anywhere across West Midlands, if AdBlue has gone in your diesel tank anyway — so leave it off and call 0333 366 0103.