--- title: AdBlue in a Diesel Tank Walkers Heath? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/walkers-heath-west-midlands/ location: Walkers Heath county: West Midlands latitude: 52.404480 longitude: -1.920580 service: AdBlue in a Diesel Tank updated: 2026-10-20 --- # Avoiding AdBlue in a Diesel Tank in Walkers Heath: Why It Happens Stop here for a moment if your diesel tank already holds AdBlue in it: ignition off, motor off, then phone 0333 366 0103. Normally, if the engine hasn't run, it's emptied and fully flushed where your vehicle is around Walkers Heath. Nothing happened yet? Below, the rest of the page explains the why it occurs and the ways to avoid it altogether. ## Two fillers, two tanks: AdBlue in a diesel vehicle Diesel feeds your engine — but many newer diesels seen around Walkers Heath and Hawkesley carry a second liquid too. AdBlue goes to your exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own. Separate tanks, separate fillers. Plenty of motors have a single flap for the two, while others move the AdBlue filler to the boot or under the bonnet. The diesel side is fuelled at the petrol pump all the time. Far less often, the AdBlue side is topped up — normally from a bottle, by someone working out where it goes. That gap is where the mistake lives. ## Walkers Heath: how AdBlue in the diesel tank happens It is seldom carelessness. Three things tend to line up. On a drive off Lazy Hill before work, or in the car park at The Navigation Inn heading home: that is where the rushed top-up takes place. What is the reason for the rush? As AdBlue gets low your car warns you, and if it is empty, limp mode kicks in. Then, your hand goes for the cap it knew on the old vehicle — because a rental car, a new vehicle or a company car places the fillers where your last one didn't. 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 tip once it has started. Kings Norton or the middle of Walkers Heath: it is the same few seconds either way. ## The AdBlue filler and the diesel filler: telling them apart A few seconds is all the checks take — so run through them before you tip anything, on a driveway in Headley Heath or a forecourt around Walkers Heath. - Check the cap rather than going by where it sits: AdBlue caps are frequently blue or marked "AdBlue", and diesel caps usually aren't. - Many cars give AdBlue the smaller neck of the two. - Check inside the fuel flap: plenty of motors have a label there showing which fuel goes where. - The handbook shows which it lives if your filler isn't next to your diesel cap: the boot, or under the bonnet. - The person who drove the car last. On a hire or company car picked up from somewhere like the car park at Kings Norton, ask before you leave, not when the light comes on. ## Keeping AdBlue out of your diesel tank when you top up A routine for the day the light comes on, wherever around West Midlands that is. - Not in a rush on the side of Ardath Road, not on a slope, not with the engine running: park and switch off first. - Find the AdBlue filler, check the cap, and speak the name "AdBlue" out loud as unscrewing it. It sounds silly. It does the trick. - Leave the diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle. - Finish when that tank fills or the bottle is empty; before that, pour slowly using its built-in spout. - Only after that, start the car: close the cap, check once more, and make sure the diesel cap was never opened. Find during the second or third stage that AdBlue went in the diesel filler? That is where you stop. Never carry on to step five. ## Walkers Heath: already put AdBlue in the diesel tank? Don't start the motor: that is how the short order of things starts. Leave the ignition off too, since on plenty of diesels it alone starts the fuel pump. Don't top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of that tank, where the fuel is drawn from. On a forecourt — BP, Texaco or another — the staff will usually help push the car clear, when you ask. Your own drive around Walkers Heath is where it should stay. Already run? Pull over when it's safe, then turn off. Walkers Heath lies under 5 miles from the M42; there, use the next junction. A short hop across Walkers Heath is a smaller job than a run towards Birmingham, under 10 miles away, and so tell us about how far it went. ## Walkers Heath: what occurs when our engineers arrive Our van comes to the car anywhere it stopped — your own drive, beside Kings Norton Baptist Church, or by St Paul's Catholic Primary School. Our engineers ask what was put in, roughly how much, and whether it has run, because those replies decide the work and the price. On the call itself, you are told our quote — ahead of anything else. After that: draining, then a thorough flush of the entire system. Much more than with petrol, it counts here: crystals build up, some metals are attacked, and none of that washes out unaided, no matter how long it sits. Once the fuel filter is cleaned — or replaced, if required — clean diesel is added, and then the vehicle is tested. We don't leave until it has been started and is running smoothly. With pumps safe on a working forecourt and quiet enough to use outside a house at night, most jobs in which the engine hasn't run need about half an hour once our engineers are there. Paying happens on the day, not upfront, and you are given the paperwork your insurer wants: an engineer's report and a VAT invoice. Misfuelling cover is included in many insurance policies — so make use of the wait to check yours. ## About Walkers Heath itself Walkers Heath is a locality in the West Midlands, situated near the River Rea and close to the cities of Birmingham and its surrounding suburbs. Walkers Heath sits at an elevation of around 160 metres, with nearby places including Kings Norton, Lifford, and Brandwood End. Walkers Heath has a population of approximately 4179 people, predominantly living in semi-detached housing. Walkers Heath is located about 5.2 miles southwest of Birmingham city centre, and around 98.3 miles northwest of London. ## AdBlue drains about Walkers Heath, and West Midlands beyond Walkers Heath is a small village, and the vans that cover it also work the places around it, Lifford and Brandwood End among them, across the B postcode area. Quickest of all: give a B38 9 postcode to the van. The car does not need to shift. A driveway, a lay-by on the way to The Fields Millenium Green, a side street close to Kings Norton Christadelphian Hall: we drain the vehicle where it is. Assuming doesn't help at the back of Blue Plaque: Thomas Hall BD, on a boundary, or somewhere awkward to describe; ring and ask. ## Walkers Heath motorists: the short version Read the cap before you pour. AdBlue in your diesel tank regardless? Leave the car off then phone 0333 366 0103; Petrol in Diesel drains it where it stands, throughout West Midlands.