--- title: Explained: AdBlue in a Diesel Tank Sutton Coldfield canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/sutton-coldfield-west-midlands/ location: Sutton Coldfield county: West Midlands latitude: 52.557170 longitude: -1.802310 service: AdBlue in a Diesel Tank updated: 2026-10-14 --- # Sutton Coldfield: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It? Keep the motor and ignition off then phone 0333 366 0103 first — reading can wait when AdBlue is already in your diesel tank. A drain plus a thorough flush, done just where your vehicle sits around Sutton Coldfield, is usually what it needs if caught before your motor runs. If you're reading before it has happened, the rest of this page is about why it happens and how to make sure it doesn't. ## AdBlue in a diesel motor: two tanks, two fillers Many modern diesels around Falcon Lodge, like those in Sutton Coldfield, run on two liquids; your motor gets only your diesel. AdBlue's own tank keeps it, and from there it goes to your exhaust, and there spraying cleans the fumes. Each tank has its own filler. Many of cars have a single flap for the two, while some 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 regularly, the AdBlue side is filled — mostly from a bottle, by a person working out where it goes. The slip lives in that gap. ## AdBlue in your diesel tank around Sutton Coldfield: how it happens Carelessness rarely explains it. Instead is three things coming up together. Haste follows from the warning. The vehicle tells you as AdBlue runs low, and an empty tank puts the vehicle into limp mode — so the top-up gets done quickly, before work on a drive off Smallwood Close, or on the way home in the car park at Boot Inn. The old car's cap is where your hand reaches — yet a hire car, a new vehicle or a company car puts the fillers elsewhere. That's a second thing: an unfamiliar motor. Third, the spout goes in: diesel filler or AdBlue one, it slides in as readily, and once the tip starts, no part halts it. Whether it takes place in Reddicap Heath or the middle of Sutton Coldfield, it's the same few seconds. ## Telling the AdBlue filler from the diesel filler Check these first, on a forecourt in Sutton Coldfield or a drive out in Royal Sutton Coldfield. Seconds, no more. - Blue and lettering: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap normally doesn't. Trust the cap, not where it sits. - The size. On many cars the AdBlue filler neck is the smaller of the two. - The flap. Look inside the fuel flap for a label. Many cars say there which fuel goes where. - Can't see it beside the diesel inlet? Then check below the bonnet or in your boot — the owner's manual will say which. - The person who drove the car last. On a hire or company car picked up from somewhere like the car park at the nearest station, ask before you leave, not when the light comes on. ## Keeping AdBlue out of the diesel tank when you top up On the day the warning comes on — wherever it is across West Midlands — a routine to use. - Not in a rush on the side of Walmley Road, not on a slope, not with the motor running: park then switch off properly. - Say "AdBlue" out loud as you unscrew the cap, once you find the AdBlue filler and reading it. Silly, yes, but it works. - Both behind a single flap? Then confirm the lid on your diesel side is still closed before raising the bottle. - Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty. - Close the cap and check once more. Make sure your diesel cap was never opened. Only then start the vehicle. Find at step two or three that it has already gone into your diesel side? So stop right there. Skip stage five entirely. ## AdBlue in your diesel tank already, around Sutton Coldfield? Then the order of things is short. Do not start the motor. The fuel pump starts on many diesels as soon as your ignition is switched on — and so leave it off. Diluting it with more diesel won't work, since AdBlue settles to the bottom rather than mixing — and that's where the fuel is sucked from. If you're on a forecourt, whether it's the JET or the Texaco, ask the attendants to help push the car clear of the petrol pump. If you're on your own driveway in Sutton Coldfield, leave the car where it sits. When the engine has been run by now, pull over safely and turn the vehicle off. The next junction is where to leave if you are on the M6 Toll, under 3 miles from Sutton Coldfield. Mileage matters — a quick hop across Sutton Coldfield makes a smaller job than heading under 10 miles towards Birmingham — so tell us about how far it went. ## Our arrival in Sutton Coldfield, and what happens next We come to the car wherever it has stopped, whether that's outside Hollyfield Primary School, close to New Hall Hotel or on your own driveway. Our technicians ask what was put in, about how much, and if it has run, since those replies decide the work and the quote. Nobody heads out before you've had our price over the phone. Draining your tank comes next, followed by a full flush of the system. Not like petrol, AdBlue leaves crystals and eats at certain fuel-system metals, and none of that washes out unaided. That is why it counts more. The fuel filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. Then our technicians fire it up and make sure it runs smoothly before we go. With pumps fine on a working forecourt and quiet enough for use outside a house at night, most jobs where the motor has not run take about half an hour after we are there. Payment is on the day, not upfront, and you are given the paperwork an insurer wants: an engineer's report and a VAT invoice. Wrong-fuel cover is part of many insurance policies — and so make use of the wait to look at yours. ## About Sutton Coldfield and where it is Sutton Coldfield is a town situated on the northeastern edge of Birmingham, beside the River Tame in the West Midlands. Sutton Coldfield sits at an elevation of around 137 metres, with a mix of semi-detached housing and other residential types. Sutton Coldfield is close to nearby places such as Reddicap Heath, Thimble End, and Maney, and is located about 6.8 miles from Birmingham city centre. Sutton Coldfield has a population of approximately 21,212 people. ## AdBlue drains in Sutton Coldfield and across West Midlands Over B postcodes, our teams covering Sutton Coldfield — a riverside town — work the nearby spots too, Maney and Thimble End among them. Give a postcode beginning B76 1, and our van arrives quickest. The car stays where it is. The drain happens on the spot, be it a drive, a road by Alfred Owen Blue Plaque, or a lay-by on the way to New Hall Hotel & Spa Pitch & Putt. Assuming doesn't help behind St Chads Church, close to a boundary, or anywhere hard to pin down; phone and check. ## The short version for Sutton Coldfield drivers Before you tip, read the cap. If AdBlue has gone in your diesel tank regardless, leave it off and phone 0333 366 0103. Petrol in Diesel empties it where it waits, anywhere in West Midlands.