--- title: AdBlue in a Diesel Tank Somerdale: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/somerdale-somerset/ location: Somerdale county: Somerset latitude: 51.420490 longitude: -2.498650 service: AdBlue in a Diesel Tank updated: 2026-10-10 --- # Somerdale: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It? AdBlue already in the diesel tank? In that case put this page down a moment, keep your ignition and motor off, and call 0333 366 0103. A drain plus a full flush, carried out right where your vehicle stands around Somerdale, is usually all it needs when caught before the engine runs. Reading in advance? In that case what follows explains how it comes about and how to stop it happening at all. ## AdBlue in a diesel vehicle, and its separate tank Plenty of current diesels on the roads about Somerdale and Willsbridge carry two liquids, not one. Diesel goes to the engine. Its own tank keeps it, and from there it is sent to the exhaust, where a spray cleans the fumes. There is a filler on each tank. Other motors put the AdBlue filler in the boot or under the bonnet; a lot of others place both side by side behind one flap. Filling your diesel side at the petrol pump goes on all the time. Someone who has to stop and work out where it goes normally tops up the AdBlue side, from a bottle, and far less commonly. It is in the gap that the mistake lives. ## How does AdBlue in your diesel tank occur around Somerdale? It is seldom carelessness. Three things tend to line up. First, the warning. Low AdBlue triggers a message from your car, and letting it run dry leads to limp mode — so a rushed top-up, maybe before work off Chandos Road, perhaps outside The Old Bank on the way home that evening. Then, the hand reaches for the cap it would have used on the old vehicle — because a rental car, a new motor or a company car puts 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, so nothing stops the tip after it has started. The same few seconds settle it, in the middle of Somerdale or out in Keynsham. ## Which filler is for AdBlue, and which for diesel? Whether a Somerdale forecourt or a drive over in Hicks Gate, spend a couple of seconds over these before any is poured in. - Read the cap instead of going by position: AdBlue caps are commonly blue or marked "AdBlue", and diesel ones normally are not. - Many cars give AdBlue the smaller neck of the two. - A label inside the fuel flap frequently says which fuel goes where, on plenty of vehicles. Check for it. - The handbook. If your filler isn't by your diesel cap, it's in the boot or under the bonnet, and the handbook says which. - Whoever had it before knows. Check as you pick up a hire car or fleet car — from Keynsham's car park, perhaps — not once the light comes on. ## AdBlue top-ups that never reach your diesel tank A routine for the day the light comes on, wherever in Somerset that is. - Park and switch off. Not on a slope, not with your engine running, and not in a rush on the side of Dryleaze. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it does the trick. - Both under one flap? So make sure the lid on the diesel filler stays closed before raising the bottle. - Gently does it, through the bottle's own spout, until it is full or the bottle runs out. - Close the cap and check a second time. Make sure the diesel cap was never opened. Only then start the car. Stop there if you find, at stage two or three, that you have already poured into the diesel side. Do not go on to stage five. ## Put AdBlue in the diesel tank around Somerdale already? Short order, then. First: your engine stays off. The fuel pump starts on plenty of diesels as soon as your ignition is switched on — and so keep it off. Don't top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of your tank, where your fuel is drawn from. On a forecourt — Esso, BP or any other — the attendants will normally help roll your car clear, if you ask. On your own drive in Somerdale? So the vehicle stays where it is. Stop as soon as it is safe then switch off, if the engine has already run. Somerdale sits under 5 miles from the M32; on it, use the first junction. A short hop across Somerdale is a smaller job than a run towards Bristol, under 10 miles away, so tell us about how far it went. ## Somerdale: what happens when our engineers get there Outside Somerdale Educate Together Primary Academy, near St Dunstan's Catholic Church or on your own drive: wherever the vehicle has stopped, our technicians come to it. We ask what was put in, about how much, and if it has run, since those replies decide this work and our price. That price is given over the phone, before any van leaves. Draining that tank comes next, followed by a thorough flush of your system. Not like petrol, AdBlue leaves crystals and attacks certain fuel-system metals, and neither clears away unaided. That is why it matters more. Once your filter is flushed — or replaced, where needed — fresh diesel is added, and finally the vehicle is tested. Before we go, our technicians start the engine and make sure that it's running correctly. Unrun vehicles mostly mean a half-hour visit from the moment we arrive. The kit is fine on a live filling station, and quiet enough for a driveway late at night. The insurer usually wants an engineer's report and your VAT invoice, and both are yours once the job is done. Payment is on the day, with no deposit. Wrong-fuel cover is part of many insurance policies — and so make use of the wait to look at yours. ## About Somerdale, for a moment Somerdale is a suburban area located on the riverside in Somerset, with a mix of semi-detached housing and a population of around 3130 residents. Somerdale sits near the River Avon, approximately 5 miles from Bristol and 102 miles from London, at an elevation of 18 metres. Somerdale is close to nearby places such as Keynsham, Stockwood Vale, and Hanham Green, and is part of the larger Bristol urban area. Somerdale has a relatively low elevation, typical of the riverside areas in the region. ## AdBlue drains across Somerset, Somerdale included Being a residential suburb, Somerdale shares its vans surrounding areas — Stockwood Vale, Hanham Green — all the way across BS postcodes and the wider area around them. Fastest of all: quote a BS31 2 postcode for the van. Your car does not need to move. Our engineers drain it where it is — a side street near Keynsham Roman Villa, a lay-by on the way to Keynsham RFC, a driveway. Guessing won't help behind Fry's memorial, on a border, or anywhere hard to describe; ring and ask. ## In short, for Somerdale drivers Read the cap before you tip. Even so AdBlue in your diesel tank? Petrol in Diesel will drain it wherever it is, wherever across Somerset: switch the vehicle off and ring 0333 366 0103.