--- title: AdBlue in a Diesel Tank Birches Green: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/birches-green-west-midlands/ location: Birches Green county: West Midlands latitude: 52.517640 longitude: -1.828320 service: AdBlue in a Diesel Tank updated: 2026-10-04 --- # Birches Green: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It? AdBlue already in your diesel tank? Then set this page aside for now, leave the ignition and engine off, then ring 0333 366 0103. In Birches Green, catching it before your motor runs normally leaves a drain and a thorough flush on the spot. The rest of this page explains why it occurs and how to make sure it doesn't — useful if you're reading before it has happened. ## AdBlue in a diesel vehicle: two tanks, two fillers No single fluid but two: that is what many modern diesels near Birches Green and Pype Hayes carry, with diesel feeding your motor. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. There's a filler on every tank. Many of cars share a single flap for the two, while some put the AdBlue filler to the boot or under the bonnet. Diesel goes in on every filling station visit, again and again. Far less regularly, the AdBlue side is topped up — mostly from a bottle, by someone thinking about where it goes. The mistake lives in that gap. ## How AdBlue in your diesel tank takes place in Birches Green It is rarely carelessness. Three things tend to line up. On a driveway off Whitminster Avenue before work, or in the car park outside The Lad in the Lane heading home: that's where the hurried top-up takes place. Why the rush? As AdBlue runs low the vehicle warns you, and if it's gone, limp mode follows. The old car's filler is where your hand reaches — yet a rental car, a new motor or a company car puts the fillers elsewhere. That is a second thing: a strange car. 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 once it has started. Erdington or the heart of Birches Green: it is the same few seconds in both. ## The AdBlue filler and the diesel filler: telling them apart A few seconds is all the checks take — so check them before you pour anything, on a drive in Chester Road or a forecourt in Birches Green. - The cap. The AdBlue cap is commonly blue, or marked "AdBlue". Your diesel cap usually is not. Read it instead of going by where it sits. - Look at the size: the smaller neck is, on plenty of motors, the AdBlue one. - The flap. Look inside the fuel flap for a label. Many vehicles say there which fuel goes where. - The handbook. If your filler is not by your diesel cap, it's in your boot or under the bonnet, and the handbook says which. - The person who drove the car last. On a hire or company car picked up from somewhere like the car park at Erdington, ask before you leave, not when the light comes on. ## AdBlue top-ups that never reach the diesel tank A routine for the day the light comes on, wherever around West Midlands that is. - Stop on level, motor off, with time to spare — never hurried on the side of Kingsbury Road. - Say "AdBlue" out loud as you unscrew the cap, after finding the AdBlue filler and read it. Silly, yes, yet it works. - Both under a single flap? So confirm the cap on the diesel filler is still shut ahead of raising the bottle. - Stop once the tank fills or the bottle is empty; until then, pour slowly using its own spout. - Before starting your car, shut the cap and look a second time that the diesel cap never came off. Find at the second or third stage that the bottle went in the wrong filler? That's where you stop. Don't carry on to step five. ## Birches Green: already put AdBlue in the diesel tank? The short order of things, starting with no starting your engine. Don't switch the ignition on; on many diesels that alone runs the fuel pump. Filling up with diesel will not thin it: rather than mixing, AdBlue sinks to the bottom of the tank, right where the fuel is drawn from. The attendants at Shell, another forecourt nearby or another forecourt will normally help pushing the car clear if you ask. Leave it where it is if you're on your own drive in Birches Green. Stop as soon as it is safe then switch off, if your motor has already run. Birches Green sits under a mile from the M6; there, use the next junction. Mileage counts — a short hop across Birches Green makes a smaller job than heading under 5 miles towards Birmingham — so say about how far it went. ## Our arrival around Birches Green, and what occurs next Wherever the car has stopped, be it by Birches Green Primary School, beside Catholic Church of SS. Peter & Paul or on your own drive, the van comes to it. We ask what got in, roughly how much, and if it has run, because the replies decide the work and our quote. That price is given on the call, ahead of any van leaving. After that: a drain, then a full flush of the entire system. Unlike petrol, AdBlue leaves crystals and attacks certain fuel-system metals, and none of that clears away unaided. Hence it matters more. A test comes last: before that, fresh diesel goes in, and the fuel filter is cleaned or changed as needed. We do not go until it has been fired up and is running smoothly. If the engine has not run, the majority of jobs take about half an hour once we're there, using pumps that are safe on a working forecourt and quiet enough to use outside a house after dark. Your insurer will ask for an engineer's report and your VAT invoice, and you get both at the end. Payment comes on the day, with no money upfront. It is worth checking your policy as the van travels to you: misfuelling cover comes with plenty of policies. ## About Birches Green itself Birches Green is a suburban area in the West Midlands, situated near the River Tame and close to the city of Birmingham. Birches Green has a mix of housing types, but semi-detached homes are the most common, and its elevation is around 107 metres above sea level. Birches Green is located near several other suburban areas, including Erdington, Gravelly Hill, and Bromford, and is about 4 miles from Birmingham city centre. Birches Green is also within commuting distance of London, which is approximately 100 miles to the south-east. ## AdBlue drains across West Midlands, Birches Green included Throughout B postcodes, the teams that cover Birches Green — a residential suburb — work the nearby places too, Bromford and Gravelly Hill among them. Quote a postcode beginning B24 9, and the van gets there quickest. Your car remains put. A driveway, a lay-by on the way to Spring Lane Playing Fields, a side street near Birches Green Evangelical Free Church: our technicians drain the vehicle where it sits. Assuming won't help behind Kingdom Hall of Jehovah's Witnesses, on a boundary, or somewhere hard to describe; phone and check. ## In short, for Birches Green motorists Before you tip, read the cap. Petrol in Diesel empties it where it stands, anywhere across West Midlands, if AdBlue has gone in the diesel tank regardless — and so leave the vehicle off then ring 0333 366 0103.