Preventing AdBlue in a Diesel Tank in Mills Hill: Why It Happens
Keep your motor and ignition off then call 0333 366 0103 now — the rest can wait when AdBlue is already in your diesel tank. A drain plus a full flush, carried out just where your car sits in Mills Hill, is usually what it needs when caught before the motor runs. Nothing happened yet? Further down, the rest of the page explains the why it takes place and the ways to avoid it for good.
AdBlue in a diesel car, and its separate tank
Diesel feeds the engine — but many newer diesels driven around Mills Hill and Moorclose carry another liquid too. AdBlue's own tank keeps it, and from there it goes to the exhaust, and there spraying cleans the fumes.
Each tank comes with one filler of its own. Under one flap, next to each other: that is the arrangement on many motors. On others, AdBlue's filler is beneath the bonnet or in the boot instead. Diesel gets filled at every forecourt call-out, week in, week out. Seldom topped up, AdBlue normally goes in from a bottle, tipped by someone who has to stop and think which filler to use. The mistake grows in that gap between them.
AdBlue in the diesel tank in Mills Hill: how it happens
Rarely is it carelessness: normally three things coincide.
To start with, the warning. Low AdBlue brings a warning from the vehicle, and letting it run out means limp mode — hence a hurried top-up, maybe before work off Middleton Road, or outside Rose of Lancaster on the way home that evening.
Then, the hand goes for the cap it knew on the old car — because a hire car, a new vehicle or a company car puts the fillers somewhere your last one didn't.
A spout-topped bottle meets no resistance at a diesel filler any more than at an AdBlue one. And so the tip, after begun, carries on. The same few seconds settle it, in the middle of Mills Hill or out in Chadderton Park.
Telling the AdBlue filler from your diesel filler
Before you tip anything, whether on a drive in Healds Green or a forecourt in Mills Hill, check these. They take a few seconds.
- The cap. The AdBlue cap is commonly blue, or marked "AdBlue". The diesel cap normally is not. Read it rather than going by where it sits.
- Look at the size: the smaller neck is, on many cars, the AdBlue one.
- A label inside your fuel flap often says which fuel goes where, on plenty of cars. Check for it.
- The handbook says where it lives when your filler is not next to your diesel cap: your boot, or under the bonnet.
- Picking up a hire or company car, perhaps at the car park outside the nearest station? Ask whoever drove it last before you set off, not when the light comes on.
Topping up AdBlue without it reaching the diesel tank
Wherever in Greater Manchester the light comes on, this is a routine for the day.
- Turn off after you park — level ground, engine stopped, and not rushed beside Haigh Lane on the verge.
- Say "AdBlue" out loud as you unscrew the cap, once finding the AdBlue filler and reading it. Daft, yes, but it works.
- The diesel cap stays on. When both share a flap, confirm it's shut before lifting the bottle.
- Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty.
- Only then, start your car: close the cap, check a second time, and make sure your diesel cap was never opened.
Spot at step two or three that it's already gone into the diesel side? Then stop just there. Don't go on to step five.
Mills Hill: already put AdBlue in the diesel tank?
Then the order of things is short. Do not start the engine. On many diesels your ignition alone runs the fuel pump, and so do not switch it on. Do not top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of that tank, where the fuel is drawn from.
The staff at Esso, Shell or another forecourt will normally lend a hand to push your car away if asked. If you're on your own drive in Mills Hill, leave the car where it stands.
Stop as soon as it is safe then switch off, if the motor has already run. Mills Hill sits under 3 miles from the A627(M); there, use the next exit. Mileage counts — a short hop across Mills Hill makes a smaller job than driving under 10 miles to Manchester — so say roughly how far it went.
Our arrival around Mills Hill, and what takes place next
We come to the car wherever it has stopped, whether that's outside Mills Hill Primary School, close to Mills Hill Baptist Church or on your own driveway. Which fluid was put in, the quantity, and whether it ran: our technicians ask because the answers decide the work and quote. During the call itself, you are told the quote — ahead of anything else.
Your system is then rinsed thoroughly, once that tank is drained. More than with petrol, it counts with AdBlue: crystals build up, certain metals corrode, and nothing washes away unaided, however long it sits. Your filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and the car is tested. Then our engineers start the engine and check it runs correctly before we go.
Most jobs are done in about half an hour once our engineers arrive, as long as the motor has not run — and the pumps we use are safe on a busy forecourt and quiet after dark beside a house. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Plenty of insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way.
About Mills Hill
Mills Hill is a suburban area in Greater Manchester, situated near the River Irk and close to the city of Manchester. Mills Hill has a mix of housing types, but semi-detached homes are predominant, and the area is home to around 6300 people. Mills Hill sits at an elevation of 109 metres, with nearby green spaces like Chadderton Park and areas such as Acres and Chadderton Fold. Mills Hill is located about 5.9 miles from Manchester city centre, making it a commuter-friendly location.
Mills Hill and Greater Manchester: AdBlue drains across the area
Throughout OL postcodes, our teams covering Mills Hill — a residential suburb — work the surrounding places too, Chadderton Fold and Acres included. A postcode starting OL9 9 gets the van to you fastest.
Moving your car isn't needed. A drive, a lay-by on the way to Chadderton Hall Park, a side street close to Lancaster Park & Animal Farm: our engineers drain the vehicle where it sits. Assuming won't help behind St Gabriel's Parish Church, close to a border, or somewhere awkward to describe; phone and check.
Mills Hill drivers: the short version
Read the cap before you tip. Petrol in Diesel empties it where it stands, anywhere across Greater Manchester, if AdBlue has gone in your diesel tank regardless — so leave the car off and phone 0333 366 0103.