What is Diesel Exhaust Fluid/ AdBlue?​

Joe Duffy Land Rover Service Dublin.

Diesel Exhaust Fluid (DEF) also known as AdBlue us a non-toxic, colourless, odourless and non-flammable fluid stored in a dedicated tank in your Land Rover. It is injected into the exhaust system to clean exhaust gases. From 2016 Model Year all Land Rovers of this age and younger have been fitted with Selective Catalytic Reduction (SCR) technology which enables Land Rover to meet EU6 emissions legislation by reducing the levels of Nitrogen Oxide emitted from the exhaust system by up to 90%- this system requires the use of DEF.

How will you know When you DEF/AdBlue® Levels are Low?

Your message centre in your Land Rover will display a series of messages when DEF is running low.

1. The first message states DEF level is at the level where a top up is advised

2. The second message is accompanied with an amber warning icon and states to refill the DEF tank

3. The third a countdown of the distance remaining with DEF tank until empty, after which the vehicle will fail to start.

4. Final message is accompanied with a red icon and is displayed with a distance remaining of zero, at this stage no further restarts will be possible until DEF is added to the tank.


It is important that your Land Rover’ supply of DEF is maintained, as EU legislation means that you cannot start the engine without it. Your car’s message centre will give you advance warning when your DEF level is low and will alert you in plenty of time to book a refill.

At Joe Duffy Land Rover you can call or visit our service team for advise on pricing for an AdBlue/DEF top up. We offer mid-service top-ups at varying prices depending on the model of Land Rover you own or if you have purchased a Land Rover with a service plan you can get a free refill at Joe Duffy Land Rover Service Centre located in Airside Retail Park, Swords.

Frequently Asked Questions:

How Do I check the Level of DEF/AdBlue?

The distance until your next DEF refill can be viewed at any time in the message centre on the dashboard*. Follow these simple steps:

1. Switch on the ignition, but do not start the engine (Check that a valid smart key is inside the vehicle and ensure that the brake pedal is not pressed. Hold down the engine START/STOP button until the instrument panel warning lamps illuminate)

2. Press the OK button on the steering wheel control to access the Main Menu (On some models, repeatedly press the OK button until Driver Assistance is displayed)

3. Using the down arrow button on the steering wheel control, scroll down and highlight Vehicle Info

4. Press the OK button to confirm selection

5. Scroll down to highlight Diesel Exhaust Fluid (On some models this is displayed as Next Service)

6. Press the OK button to confirm selection. The DEF range is then displayed

How Often should I re-fill DEF/AdBlue?

The consumption of DEF can vary greatly. An average consumption rate can be 500 miles (800 km) / 1 Litre, but this consumption rate can be more than doubled, depending on the driving style, road and weather conditions.

What Happens If I Run out?

Should you run out of DEF your Land Rover will not re-start after you switch off the engine - this is a requirement of EU6 emissions legislation. The tank will need to be refilled with a minimum of 3.6 litres of AdBlue® before the vehicle will start.

Can I Re-Fill it myself?

Yes, you can purchase 1.89 litre non-drip bottles of AdBlue® from Joe Duffy Land Rover to refill the tank yourself. These bottles have been specifically designed for ease of use and to prevent any dripping. We do not recommend refilling the tank using any other type of container.

Do not pour any other liquids into the DEF tank or DEF that does not meet the standard ISO22241-1 or DIN 70070 as this will compromise the correct operation of your vehicle.

If you pour DEF into your fuel tank by mistake, DO NOT start the engine, and call your local Land Rover Retailer/Roadside Assistance immediately.

Commercial vehicle AdBlue® pumps at fuel stations must never be used because the flow rate is too high and this will damage the vehicle’s DEF tank.

Refer to your Owner’s Handbook for instructions on how to refill your DEF tank.

Is AdBlue Hazardous?

Although DEF is non-hazardous, should it come in to contact with any part of your body, or it is ingested by accident, please refer to the advice on the packaging and seek medical advice. If DEF comes into contact with your Land Rover’s paintwork, simply wipe it off, and rinse the area with soapy water. However, DEF can stain upholstery and clothing – if spilt, DEF should be removed immediately using cold water and a damp cloth.

For more information on DEF/AdBlue and for pricing on top ups on your Land Rover contact our service team on 01-870-1440 or complete the below form and a member of our team will aim to get back to you within 4 hours of your enquiry within opening hours.

*When the AdBlue® level becomes low, a notification message displays in the message centre. Refill the AdBlue® tank at the earliest opportunity. Joe Duffy Land Rover your Authorised Repairer can be contacted to arrange a full AdBlue® refill. If required, AdBlue® can be topped up using non-drip refill bottles available from a Joe Duffy Land Rover your Authorised Repairer. An average consumption of AdBlue® is 800km (500 miles) /1 litre. However, consumption can vary greatly depending on your driving style, the weather and the condition of the road.