adblue | Ask Honest John

Ask Honest John

Most recently answered adblue questions

How do I know when I need to top up my AdBlue?

Am I able to monitor the ADBlue my car has in reserve within its vehicle tank and if so how do i do this

I have a 2016 VW Touareg Escape with an Ad Blue tank. When I bought the car I had no experience of this AdBlue stuff. There is no way to check the tank other than push a dry stick in. It appeared to...

How do I solve AdBlue problems with my diesel Jaguar?

I own a Jaguar XE 180 2.0 diesel with an Ingenium engine which has done only 53k miles. For the third time in six months a message is displayed "Incorrect diesel Fluid Quality Detected" so I take it to...

Does the AdBlue range change depending on driving style?

I recently bought a used 2017 Mercedes GLC and I noticed that the AdBlue gauge doesn’t seem to change from 3100 miles although I have driven about 500 miles since I last checked. Is this a fault or does...

What is AdBlue and what does it do?

I currently have a 2014 Mercedes-Benz C-Class diesel and I am waiting delivery of a new B-Class 180d. I prefer Mercedes diesels to Renault petrol engines. Because I only do around 8,000 miles per year...

I have an out of warranty fault on a 2015 model. Should the manufacturer help sort them out?

I have a 2015 Peugot 2008 HDI that requires Adblue. It has only done 22,000 miles but it is showing two fault codes relating to the Adblue system which, from what I've seen online, is a common problem...

Will using Adblue that's over 18 months old damage the catalytic converter?

Will using Adblue that's over 18 months old damage the catalytic converter or any other of the car's components?

What type of funnel should I use to refill the Adblue liquid?

Does our petrol van require AdBlue?

I have recently bought a 2018 Volkswagen Caddy Maxi 1.0 TSI and have just noticed a small factory label on the top left windscreen, stating "this vehicle requires AdBlue". Is this correct, as I was led...

How much AdBlue will my car use?

I have recently bought a BMW X2 20d which has an AdBlue system. Can you tell me the average consumption rate I might expect to get for this AdBlue (the main dealer I bought the car from says it depends...