--- title: AdBlue in a Diesel Tank Shoreham Beach? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/shoreham-beach-west-sussex/ location: Shoreham Beach county: West Sussex latitude: 50.829380 longitude: -0.272320 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # How It Happens and How to Prevent It: AdBlue in a Diesel Tank in Shoreham Beach AdBlue already in your diesel tank? In that case put this page down a moment, leave your ignition and motor off, and ring 0333 366 0103. Caught before the engine runs, it's usually a drain and a thorough flush, done where the vehicle is in Shoreham Beach. Not happened yet? Below, the rest of the page covers the why it happens and the ways to avoid it altogether. ## Two fillers, two tanks: AdBlue in a diesel vehicle Diesel feeds the engine — yet plenty of modern diesels seen about Shoreham Beach and Southwick hold a second liquid as well. Its own tank holds it, and from there it goes to the exhaust, where a spray treats the gas. Each tank comes with one filler of its own. Under one flap, next to each other: that's the layout on many vehicles. Elsewhere, AdBlue's filler is beneath the bonnet or in the boot instead. Filling the diesel side at the petrol pump goes on constantly. Far less commonly, the AdBlue side is filled — normally from a bottle, by someone thinking about where it goes. That gap is where the slip lives. ## How AdBlue in the diesel tank happens around Shoreham Beach Carelessness seldom explains it. What does is three things lining up at once. Hurry comes from the warning. The car warns you as AdBlue runs low, and a dry tank sends it into limp mode — so the top-up happens quickly, before work on a drive off Riverside, or heading home in the car park outside The Waterside. Then, the hand goes for the cap it knew on the old motor — since a rental car, a new motor or a company car puts the fillers where your last one didn't. Lastly, the bottle fits: diesel filler or AdBlue filler, it slides in just as readily, and after the tip begins, nothing halts it. Whether it takes place in Shoreham-by-Sea or the middle of Shoreham Beach, it's the same few seconds. ## Which filler is for AdBlue, and which for diesel? Before you tip anything, whether on a driveway in South Lancing or a forecourt around Shoreham Beach, check these. They take a couple of seconds. - Colour and marking: an AdBlue cap is commonly blue, or says "AdBlue", where a diesel cap normally doesn't. Go by the cap, not its position. - Check the size: the smaller filler neck is, on plenty of motors, the AdBlue one. - Lift the flap and check for a label — many motors show what belongs in which filler just there. - In your boot or under the bonnet: that's where the filler sits if it is not by the diesel cap, and the handbook says which. - Picking up a hire or company car, say at the car park outside Shoreham-By-Sea? Ask the person who drove the vehicle last before you set off, 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 in West Sussex that is. - Park and switch off. Not on a slope, not with your motor running, and not in a rush on the side of Riverside Road. - Find the AdBlue filler, check the cap, and speak the word "AdBlue" aloud while you unscrew it. It seems daft. 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. - Slowly is best, through the bottle's own spout, until it's full or the bottle runs out. - Only after that, start the vehicle: close the cap, check a second time, and make sure the diesel cap was never opened. Discover at the second or third stage that AdBlue went into the wrong tank? That is where you stop. Skip stage five altogether. ## AdBlue in the diesel tank already, in Shoreham Beach? Then the order of things is short. Don't start the motor. On plenty of diesels your ignition alone runs the fuel pump, and so do not switch the car on. Diluting it with extra diesel fails, because AdBlue sinks to the bottom instead of blending — and that's where your fuel is sucked from. Ask the staff to help roll the car clear of the petrol pump if you're at a forecourt — the Texaco, the Shell or anywhere else. Leave it where it is if you're on your own drive in Shoreham Beach. Stop as soon as it is safe then switch off, if your engine has already run. Shoreham Beach sits under 25 miles from the M23; on it, use the next junction. Tell us roughly how far it went: a run towards Brighton and Hove, under 10 miles away, is a bigger job than a short hop across Shoreham Beach. ## Shoreham Beach: what occurs when we get there Wherever the vehicle came to rest, whether by Shoreham Beach Primary School, beside Shoreham Parish Centre or on your own drive, our van comes to it. Our technicians ask what went in, roughly how much, and whether it's run, since those replies settle the work and our price. No one heads out before you have heard our quote over the phone. After that: draining, then a full flush of the entire system. More than with petrol, it counts here: the crystals build up, some metals corrode, and nothing clears out unaided, no matter how long it is left. A test comes at the end: before that, fresh diesel goes in, and the fuel filter is flushed or changed as needed. Your engine is fired up next and checked to make sure it runs properly, all before our engineers head off. Most jobs are done in roughly half an hour after our engineers get there, as long as your engine hasn't run — and the pumps we use are fine on a live forecourt and quiet after dark outside a house. No money in advance; you settle up that day. At the end, a VAT invoice and a report from the engineer are handed to you for your insurer. While we travel, have a look at your insurance documents; many carry cover for misfuelling. ## About Shoreham Beach Shoreham Beach is a coastal suburban area in West Sussex, situated near the mouth of the River Adur and adjacent to Shoreham-by-Sea. Shoreham Beach lies at a low elevation of around 2 metres, with the majority of its housing stock comprising flats. Shoreham Beach is close to the city of Brighton and Hove, and is also near the smaller settlements of Kingston by Sea and Old Shoreham. ## AdBlue drains about Shoreham Beach, and West Sussex beyond Shoreham Beach is a residential suburb, and our vans that cover it also work the towns around it, Kingston by Sea and Old Shoreham among them, across the BN postcode area. Quote a postcode that starts BN43 5, and our van gets there quickest. Moving the car isn't needed. A drive, a lay-by on the way to Coronation Green, a side street close to Shoreham War Memorial: we drain the vehicle where it stands. Assuming won't help at the back of Captain Henry Roberts, close to a border, or somewhere awkward to describe; ring and ask. ## For Shoreham Beach people, the short version Tip nothing till you have read the cap. If AdBlue has gone in your diesel tank all the same, leave it off then call 0333 366 0103. Petrol in Diesel empties it where it stands, anywhere across West Sussex.