Audi Q7 AdBlue problems and delete

An AdBlue warning on a Q7 points to a fault in the SCR system, and left alone it can lead to a countdown and a car that won't restart. We read the fault at your home or work, and AdBlue can be deleted for £330 + VAT.

AdBlue warning signs on a Q7

  • An AdBlue fault message or warning lamp in the cluster
  • A distance countdown before the engine won't restart
  • The warning returning after the tank has been filled
Dashboard showing an AdBlue fault warning

What causes AdBlue faults on a Q7

On a diesel Q7 with AdBlue, the usual causes are a weak pump, a failed tank heater, a faulty NOx sensor or crystals in the injector. Our AdBlue warning light guide covers each one.

Fault codes you might see on a Q7

CodeWhat it points to
P2200NOx sensor circuit fault
P20EECatalyst NOx reduction below the expected level
P20E8Low pressure in the AdBlue system

What we do about it

Diagnostics are £100 + VAT, done where the Q7 is parked. We don't repair AdBlue systems, so a Q7 that needs a repair goes to a dealer or SCR specialist for the part.

The £330 + VAT delete switches AdBlue off and ends the countdown.

Frequently asked questions

SGR Automotive van parked outside a customer's house
What does the AdBlue warning mean on a Q7?

Either the tank is low or a part has failed. If a top-up doesn't clear it, the Q7 needs a code read.

What happens when the Q7's countdown gets to zero?

Once you switch off, the Q7 won't restart, so stop somewhere safe for us to reach.

Why is the Q7's AdBlue light on after filling?

Filling only fixes a low level. A light that stays on means a stored fault elsewhere.

Is it the pump, heater or a sensor on the Q7?

Only the codes and live data will say, and we read both on site.

Can a Q7 with AdBlue deleted still be driven on UK roads?

No. We only delete AdBlue on Q7s kept off-road or going for export, and our guide to whether an AdBlue delete is legal explains why.

Sort the AdBlue problem on your Q7

Send the registration and the warning, and we'll book a visit. More Audi models are listed on the Audi AdBlue page.

Address
HNA Facilities, Plot Zero, James Nasmyth Way
Eccles, Manchester M30 0SF
0161 694 7331Book a job