Water in the AdBlue tank in London, drained on the spot
Leave the engine off. With water in the adblue tank in London, the fix is a local drainer who comes to the vehicle, pumps the tank out, flushes the lines and puts clean fuel in. Call 01295 380724: the call-out starts at £89, the job usually takes 1 to 3 hours, and you hear the full price before anyone sets off.
AdBlue is a precise mix. Extra water takes it out of specification and the exhaust treatment system logs a fault.

Water in the AdBlue tank in London at a glance
| Place | London |
|---|---|
| Area | Greater London |
| Postcodes | E3, E8, E16, EC3B, EC3M |
| Job | Water in the AdBlue tank |
| Price | Call-out from £89, full price quoted first |
| Time on site | 1–3 hours |
| Who attends | A local drainer with a pump and sealed tank |
| Phone | 01295 380724, 24 hours |
What the drainer does when they reach you in London
Most of the time is spent draining. A full tank of the wrong fuel takes longer to pump than a few litres, so the drainer will tell you roughly how long it will be once they see the gauge. After that it is a flush, a refuel and a test run before they leave.
Five things to ask a drainer before they set off
Most bad experiences with a fuel drain come from not asking these up front. Ask them all.
- Is there an extra charge at night or at the weekend?
- Will you check the filter and pump if the engine ran?
- Do you bring clean fuel, and is it included?
- Can you work on the forecourt, or does the car need to be moved?
- How much more if the engine has already been started?
What to do right now
- Stop. Do not start the engine, even for a moment.
- Note the fuel type, the amount you put in and whether the car was already low.
- Ring 01295 380724 and give the location — a postcode or the filling station name is enough.
- Get the full price and an arrival time before you agree.
- A drainer attends, drains and flushes the fuel system where the car is parked.
- Clean fuel goes in, the engine is run, and you drive to the next forecourt to fill up.
Which London postcodes we cover
We cover postcode districts E3, E8, E16, EC3B, EC3M and the surrounding streets in Greater London. Give the operator your postcode and you will get an arrival window.
Where a drain can happen around London
Most drains in London happen on the forecourt where the mistake was made. The rest are at the roadside after the car cut out, or on a drive the next morning. All three work; the vehicle does not need to be towed anywhere.
Nearby, drainers regularly attend Silvertown, Hackney Central, London Gas Museum and Dalston as well.
Fuel drain prices in London
| What happened | What the drainer does | Price | Time on site |
|---|---|---|---|
| Caught at the pump | Pump out, flush, clean fuel in | Call-out from £89 | 45–90 mins |
| Ignition turned on | Pump out and flush the filter | Given on the phone | 1–2 hours |
| Driven away from the forecourt | Pump out, flush, pump and injector checks | Given on the phone | Up to 3 hours |
| Vehicle stopped running | Pump out, flush and fault-finding | Given on the phone | Depends on the fault |
| AdBlue went in the wrong tank | Complete drain and flush | Quoted per vehicle | Up to 3 hours |
| Price ranges | The call-out, then the drain | Call-out £89–£199 · drain £199–£1,999 | — |
Other drains in London
Drainers nearby
More of Greater London
From the drainer's notebook
Fuel Fixer, the company behind Wrong Fuel Drain, holds a rating of 4.8 out of 5 from 2,190 reviews on Trustpilot, on a profile claimed since 2017.
Across recent reviews, the themes customers raise most often are staff who stay polite, professional and reassuring during what is a stressful situation, and how quickly a technician arrives and gets the vehicle back on the road in London.
The most common criticism is price. Some customers have felt the cost of an emergency drain was steep for a job that takes under two hours, and that is fair comment on an emergency call-out. It is why the misfuel call-out fee now starts at just £89 and why the full figure is quoted on the phone before a technician sets off — so nothing about the cost is a surprise at the roadside.
Common questions
What happens to the fuel you take out?
It goes into a sealed tank on the drainer's van and is taken for licensed disposal and recycling. It is never tipped away.
Can you drain a van or a lorry?
Vans, yes, routinely. Vehicles over 3.5 tonnes are quoted separately because of the volume involved.
Do you cover all of London?
Yes — forecourts, roadsides, homes and workplaces across London and the surrounding area.
Do I need to move the car off the forecourt?
Only if it is blocking a pump. Push it into a bay with help and the engine off; the drainer can work there.
Can I pay by card?
Yes. Card payment is taken on site once the job is done.
Does insurance cover water in the adblue tank?
Many policies exclude misfuelling. Some breakdown cover and optional add-ons include it. Check your policy wording before assuming either way.
Who you are dealing with
Wrong Fuel Drain is a brand of Fuel Fixer Ltd (company number 08520551), a company of Fuel Fixer International, the multinational group behind this website. Fuel Fixer International is owned by Stockbridge Capital Holdings, a private equity group. Work is carried out by Fuel Fixer Ltd technicians under ISO 9001 and ISO 14001, with Environment Agency waste-carrier registration.
Once the fuel is drained and you are moving again, Motor Servicing will service the car on your driveway rather than making you find a garage.
Across the network
Fuel Fixer sites: Fuel Fixer · Misfuel Doctor · UK Wrong Fuel Repository · Fuel Fixer Scotland
Forecourt Assist sites: Forecourt Assist · AdBlue in Fuel · Wrong Fuel Cumbria · Wrong Fuel Teesside · Wrong Fuel Carlisle · Wrong Fuel Penrith · Wrong Fuel Keswick · Wrong Fuel Kendal · Wrong Fuel Workington · Wrong Fuel Maryport · Wrong Fuel Whitehaven · Wrong Fuel Newcastle · Wrong Fuel Gateshead · Wrong Fuel Sunderland · Wrong Fuel Durham · Wrong Fuel Darlington · Wrong Fuel Middlesbrough · Wrong Fuel Dumfries
Also in the group: Motor Servicing
Background reading: Environment Agency. Service operated by Fuel Fixer, alongside Wrong Fuel, Fuel Fixer Scotland and Motor Servicing, part of Fuel Fixer International and owned by Stockbridge Capital Holdings.