--- title: Explained: AdBlue in a Diesel Tank Radford Semele canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/radford-semele-warwickshire/ location: Radford Semele county: Warwickshire latitude: 52.275510 longitude: -1.494880 service: AdBlue in a Diesel Tank updated: 2026-10-04 --- # How It Occurs and How to Avoid It: AdBlue in a Diesel Tank in Radford Semele Keep the engine and ignition off then phone 0333 366 0103 now — reading can wait when AdBlue is already in the diesel tank. Caught before your motor runs, it's usually a drain and a thorough flush, done where the car is around Radford Semele. Reading before the event? In that case what follows covers how it comes about and how to stop it happening at all. ## Why does AdBlue in a diesel car need its own filler? Diesel goes to the motor — but many newer diesels seen round Radford Semele and Campion Hills hold a second fluid too. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. Each tank has its own filler. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. At the petrol pump, the diesel side is topped up constantly. A driver who has to stop and think where it goes usually fills the AdBlue side, from a bottle, and far less frequently. It's in the gap that the mistake happens. ## AdBlue in your diesel tank in Radford Semele: how it happens It is hardly ever carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low your car tells you, and if it runs out altogether, your vehicle goes into limp mode. So the top-up is done in a hurry: on a drive off Lewis Road before work, or in the car park outside White Lion on the way home. Unfamiliar vehicles come second, as well. Rentals, new cars and company vehicles place their fillers differently, and the hand goes for the cap it used on the old one. No part halts the pour after it has started, since a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. It's seconds, whether out in Sydenham or bang in the heart of Radford Semele. ## Telling the AdBlue filler from your diesel filler Before you tip anything, whether on a driveway in Tachbrook Mallory or a forecourt in Radford Semele, check these. They take a couple of seconds. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". The diesel cap usually is not. Read it instead of going by position. - Look at the size: the smaller filler neck is, on plenty of vehicles, the AdBlue one. - A label inside the fuel flap frequently shows which fuel goes where, on many motors. Look for it. - The handbook. If your filler is not by your diesel cap, it is in your boot or under the bonnet, and the handbook says which. - Collecting a hire or company car, say at the car park at Leamington Spa? Check with the person who drove the car last before you set off, not once the light goes on. ## Topping up AdBlue without it reaching your diesel tank When the light comes on, wherever around Warwickshire, follow this routine. - Stop on level, motor off, with time in hand — not rushing on the side of Hatherell Road. - Find the AdBlue filler, check the cap, and say the word "AdBlue" aloud while unscrewing it. It seems daft. It works. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave the car on. - Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Close the cap and check a second time. Make sure the diesel cap was never opened. Only then start the vehicle. Stop there if you find, at stage two or three, that you've already poured into your diesel side. Don't carry on to stage five. ## AdBlue in your diesel tank already, in Radford Semele? The short order of things, beginning with not starting the motor. On plenty of diesels the ignition alone runs the fuel pump, so do not switch it on. Thinning it with more diesel won't work, because AdBlue sinks to the bottom instead of mixing — and that is where your fuel is pulled from. On a forecourt — Asda, Gulf or any other — the attendants will usually help push the vehicle clear, when you ask. Leave it where it is if you're on your own drive around Radford Semele. When the engine has been run by now, pull over somewhere safe then switch the car off. On the M40, under 5 miles from Radford Semele, that means the next junction. Roughly how far did it go? Hopping across Radford Semele is less a job than a run of under 10 miles towards Coventry, so say. ## Radford Semele: what occurs when our engineers get there Our technicians come to the car wherever it has stopped, whether that is outside Radford Semele CofE Primary School, close to Radford Semele Baptist Church or on your own drive. Both the work and our quote depend on three answers — which fluid, which quantity, and whether it's run — so our technicians ask. During the call itself, you are told the price — before dispatch. The fuel system is then cleaned thoroughly, after the tank is drained. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own — which is why that matters more here than with petrol. The filter flushed or, if needed, swapped; clean diesel in; then a check of the vehicle. Before leaving, our technicians start the engine and confirm that it is running properly. If the engine hasn't run, most jobs take about half an hour once we're there, using pumps that are fine on a busy forecourt and quiet enough to use outside a house after dark. Nothing in advance; you settle up on the day. Afterwards, the VAT invoice and the report from the engineer go to you for the insurer. Wrong-fuel cover is included in plenty of insurance policies — so use the wait to look at yours. ## About Radford Semele itself Radford Semele is a village in Warwickshire, situated on the banks of the River Leam at an elevation of 79 metres. Radford Semele lies approximately 9 miles south of Coventry and 79 miles northwest of London, within the West Midlands region. Radford Semele has a mix of housing types, but semi-detached homes are particularly prevalent in the village. Radford Semele is close to nearby places such as Sydenham, Offchurch, and Whitnash. ## AdBlue drains across Warwickshire, Radford Semele included Radford Semele is a village, and our teams that cover it also work the places around it, Offchurch and Whitnash among them, across the CV postcode area. Quote a postcode that starts CV31 1, and our van arrives quickest. No need to shift your car. We drain it where it is — a side street near St Nicholas, a lay-by on the way to Whitnash Brook, a drive. If you're near a boundary, or somewhere hard to explain like the back of Syndenham Community Centre, ring and ask instead of guessing. ## In short, for Radford Semele people Before you tip, read the cap. Petrol in Diesel empties it on the spot, anywhere across Warwickshire, if AdBlue has gone in your diesel tank all the same — so leave it off and ring 0333 366 0103.