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DEF/ADBLUE

WHAT IS DIESEL EXHAUST FLUID (DEF)?

DEF, also known as AdBlue®, AUS 32 and ARLA 32, is a non-toxic, colourless, odourless and non-flammable fluid. Stored in a dedicated tank in your car, DEF is injected into the exhaust system to clean exhaust gases. It breaks down nitrogen oxide (NOx) emissions into harmless water vapour and nitrogen gas.

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DEF Levels Low

HOW WILL I KNOW IF MY DEF LEVELS ARE LOW?

The message centre displays a series of messages when the DEF level becomes low. 

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

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

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

4. The final message is accompanied by a RED warning icon and is displayed when the distance remaining is zero and states that no further restarts will be possible until DEF is added to the tank

MAINTAINING DEF

It is important that your Jaguar’s 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. For mid-service Top-Ups, we are now offering an AdBlue™ refill for £29.99 RRP to manufacturers recommended fill-level, regardless of the amount required*. If you have purchased a Jaguar Service Plan you can get a free refill from Heritage Jaguar.

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HOW TO REFILL YOUR AdBlue™ TANK

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

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