--- title: AdBlue in a Diesel Tank Fernhill Heath: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/fernhill-heath-worcestershire/ location: Fernhill Heath county: Worcestershire latitude: 52.228500 longitude: -2.193420 service: AdBlue in a Diesel Tank updated: 2026-10-21 --- # Preventing AdBlue in a Diesel Tank in Fernhill Heath: Why It Happens Stop reading for a moment when your diesel tank already holds AdBlue in it: ignition off, motor off, then phone 0333 366 0103. Caught before your engine runs, it's normally a drain and a thorough flush, done where the car is around Fernhill Heath. The remainder of this page explains why it occurs and how to make sure it does not — handy if you're reading ahead of time. ## Why does AdBlue in a diesel car need its own filler? Many newer diesels around Blackpole, like those in Fernhill Heath, run on two fluids; the engine gets only your diesel. AdBlue goes to your exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own. Every tank has one filler of its own. Many of cars share a single flap for the two, while some put the AdBlue filler to the boot or under the bonnet. At the petrol pump, your diesel side gets filled all the time. A driver who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and much less regularly. It's in the gap that the mistake lives. ## AdBlue in your diesel tank around Fernhill Heath: how it takes place It's rarely carelessness. Three things tend to line up. First, the warning. Low AdBlue triggers a warning from the car, and letting it run dry leads to limp mode — hence a rushed top-up, maybe before work off Hurst Lane, perhaps at The Bull Inn on the way home that evening. Unfamiliar cars are next, too. Hire cars, new vehicles and company cars place their fillers differently, and the hand goes for the cap it used on the old one. Nothing halts the pour after it has started, since a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. Whether it happens in Hindlip or the middle of Fernhill Heath, it's the same few seconds. ## The AdBlue filler and the diesel filler: telling them apart A few seconds is all these take — so check them before you pour anything, on a driveway in Claines or a forecourt around Fernhill Heath. - The cap. The AdBlue cap is commonly blue, or marked "AdBlue". Your diesel cap normally isn't. Read it instead of going by where it sits. - Plenty of cars give AdBlue the smaller filler of the two. - Open the flap and look for a label — plenty of cars mark what goes in each inlet just there. - In your boot or under the bonnet: that is where your filler sits if it is not by the diesel cap, and the handbook tells you which. - Whoever had it before knows. Check as you collect a hire car or company car — at Worcester Shrub Hill's car park, perhaps — rather than when the light appears. ## Topping up AdBlue without it reaching your diesel tank A routine for the day the light comes on, wherever across Worcestershire that is. - Turn off after you park — level ground, motor stopped, and never in a rush by Droitwich Road on the verge. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it works. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave the car on. - Slowly is best, through the bottle's own spout, until it is full or the bottle is empty. - Close the cap and check again. Make sure the diesel cap was never opened. Only then start the car. If at stage two or three you find you have already poured into the diesel side, stop there. Leave out step five entirely. ## Already put AdBlue in the diesel tank in Fernhill Heath? What follows is a short order of things, starting with not starting the motor. On plenty of diesels your ignition alone runs the fuel pump, and so do not switch it on. Topping up with diesel won't thin it: rather than mixing, AdBlue drops to the bottom of the tank, right where the fuel is drawn from. The attendants at BP, Sainsbury's or another forecourt will normally lend a hand to push your car away if asked. Leave it where it is if you are on your own drive in Fernhill Heath. Where your motor has run by now, stop somewhere safe and switch it off. The next exit is where to leave when you're on the M5, under 3 miles from Fernhill Heath. Distance counts — a short hop across Fernhill Heath makes a smaller job than heading under 3 miles towards Worcester — so say roughly how far it went. ## When our technicians turn up in Fernhill Heath, what happens? Our van comes to the car wherever it stopped — your own driveway, beside Fernhill Heath Baptist Church, or by Hindlip CofE First School. Both the work and our price rest on three answers — which liquid, what amount, and if it has run — so our technicians ask. Nobody sets off before you have heard the price by phone. Emptying that tank comes next, followed by a thorough flush of the system. Unlike petrol, AdBlue leaves crystals and eats at some fuel-system metals, and neither washes away by itself. Hence it matters more. The fuel filter is flushed, or replaced where it needs to be; clean diesel goes in; and the vehicle is tested. After that our technicians fire it up and confirm it runs properly before we go. Most jobs are finished in roughly half an hour after our technicians get there, as long as the motor hasn't run — and the pumps our engineers use are fine on a busy forecourt yet quiet after dark outside a house. No money in advance; you settle up on the day. Afterwards, the VAT invoice and a report from the engineer go to you for your insurer. Many insurance policies include misfuelling cover, so it is worth checking yours whilst we're on the way. ## About Fernhill Heath and where it is Fernhill Heath is a village in Worcestershire, situated on the banks of the River Severn at an elevation of 49 metres. Fernhill Heath lies close to the city of Worcester, with which it has strong commuter links. Fernhill Heath has a mix of old and new housing, but detached homes are the predominant type, reflecting its suburban character. Fernhill Heath is also near several smaller settlements, including Hindlip and Lower Town. ## AdBlue drains about Fernhill Heath, and Worcestershire beyond Being a village, Fernhill Heath has the same vans as surrounding places — Lower Town, Martin Hussingtree — all the way through WR postcodes and the wider area around them. Quickest of all: give a WR3 8 postcode to our van. Your car doesn't need to move. Our engineers drain it where it is — a side street close to St Michael & All Angels, a lay-by on the way to The Brum, a driveway. Ring and ask rather than guessing if you are near a boundary, or somewhere hard to explain, like the back of Church of St James. ## For Fernhill Heath drivers, the short version First, the cap; after that, the tip. If AdBlue has gone in the diesel tank all the same, leave it off and call 0333 366 0103. Petrol in Diesel empties it where it sits, anywhere in Worcestershire.