Audi A5 B9 AdBlue Usage Log

[jdragon]

Audi A5 B9 2.0 190

In the interest of sharing info (and to mitigate an AdBlue system related issue) I have been logging what VCDS tells me on some parameters.

My driving pattern is a 70 miles round trip for work (3 days/week) of A roads, and several 15-20 minute trips of again mostly A roads. We typically use my wife's car at weekend, otherwise I'll do another 60 miles round trip (minimum) drive on A roads.

My driving style to work is either conservative (avg. 57mph to get 76mpg+) or less patient where the economy drops to 64mpg. The shorter runs are less consistent 😃

I only use Esso or Shell fuel with a dose of either Archoil.

The data can be found in VCDS under: 01-Engine > Advanced Measuring Blocks > Look for 'red' values in the pop up menu

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Thursday,04,August,2022,07:44:46:03341
Mileage: 121393km-75430miiles (approx)

  IDE03142   Remaining vehicle distance until reducing agent deficiency 17701.75 km
  IDE03143-ENG57549   Remaining engine starts until reducing agent deficiency-Bits 0-7 25 
  IDE03144   Used reducing agent since last service 161924.092 g
  IDE06254-ENG57549   Status of a reducing agent warning-Bits 0-7 0 
  IDE10031   Sensor for reducing agent fill level: fill level height 163 mm
  IDE10032   Reducing agent quality sensor: urea concentration 399.99 %
  IDE10039   Reducing agent quality sensor: validity 1 
  IDE10246   Reducing agent tank volume: act. value filtered 19858 ml
  IDE10247   Reducing agent tank volume: act. value calculated 20.17 l
  IDE10879   Sensor for reducing agent fill level: calibrated 82.17 %

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Sunday,14,August,2022,20:32:21:03341
Mileage: 121992km-75802mi

  IDE03142   Remaining vehicle distance until reducing agent deficiency 17417.25 km
  IDE03143-ENG57549   Remaining engine starts until reducing agent deficiency-Bits 0-7 25 
  IDE03144   Used reducing agent since last service 162524.613 g

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Tuesday,13,September,2022,18:43:22
Mileage: 123287km-76606mi   Repair Order: 

  IDE03142   Remaining vehicle distance until reducing agent deficiency 16664.00 km
  IDE03143-ENG57549   Remaining engine starts until reducing agent deficiency-Bits 0-7 25 
  IDE03144   Used reducing agent since last service 163692.646 g

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Saturday,08,October,2022,19:41:27
Mileage: 125263km-77835mi

  IDE03142   Remaining vehicle distance until reducing agent deficiency 15622.00 km
  IDE03143-ENG57549   Remaining engine starts until reducing agent deficiency-Bits 0-7 25 
  IDE03144   Used reducing agent since last service 165575.847 g

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Monday,17,October,2022,19:02:53
Mileage: 125481km-77970mi

  IDE03142   Remaining vehicle distance until reducing agent deficiency 15335.75 km
  IDE03143-ENG57549   Remaining engine starts until reducing agent deficiency-Bits 0-7 25 
  IDE03144   Used reducing agent since last service 165753.154 g
  IDE06254-ENG57549   Status of a reducing agent warning-Bits 0-7 0 
  IDE10031   Sensor for reducing agent fill level: fill level height 137 mm
  IDE10032   Reducing agent quality sensor: urea concentration 399.99 %
  IDE10039   Reducing agent quality sensor: validity 1 
  IDE10246   Reducing agent tank volume: act. value filtered 17858 ml
  IDE10247   Reducing agent tank volume: act. value calculated 17.80 l
  IDE10879   Sensor for reducing agent fill level: calibrated 71.18 %

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So for my vehicle, the AdBlue distance until deficiency drops at half the rate of actual mileage covered

I think I might do as others have suggested and ask the VAG specialist I go to for the next top up in approx. 14000k miles which will mean I shouldn't run it down the low low warning.

[jdragon]

Open question:

How many miles/litre of AdBlue is everyone getting, and driving pattern?

[Stevey Y]

5 hours ago, jdragon said:

Open question:

How many miles/litre of AdBlue is everyone getting, and driving pattern?

Hi I can't give any precise figures but I have to refill about every three months which equates to about 6000 miles, bearing in mind you use a lot more doing town work, its like the EGR valve which is open more when doing town work but hardly ever when out on a motorway.

Steve.

[jdragon]

Thanks for the info.

How many litres does your tank hold?

[Stevey Y]

On 10/20/2022 at 9:59 PM, jdragon said:

Thanks for the info.

How many litres does your tank hold?

Hi at a rough guess about eleven litres goes down to 1500 miles when light comes on and takes at least seven or eight litres to fill back up.

Steve.

[jdragon]

By my estimation I'm a couple of K miles away from needing to fill up the AdBlue tank.

I'm almost certain it has the 24 litre tank.

Where do you guys buy your AdBlue from? These seem like fairly common:

Carlube AdBlue 10L with spout : Amazon.co.uk: Automotive

Redex Adblue with Easy Pour Spout, Suitable for All Makes and Models, ISO22241 Compliant, 10 Litre : Amazon.co.uk: Automotive

Has anyone used a pump instead of the containers?

[Stevey Y]

7 hours ago, jdragon said:

By my estimation I'm a couple of K miles away from needing to fill up the AdBlue tank.

I'm almost certain it has the 24 litre tank.

Where do you guys buy your AdBlue from? These seem like fairly common:

Carlube AdBlue 10L with spout : Amazon.co.uk: Automotive

Redex Adblue with Easy Pour Spout, Suitable for All Makes and Models, ISO22241 Compliant, 10 Litre : Amazon.co.uk: Automotive

Has anyone used a pump instead of the containers?

Hi about the best two are YARA from Halfords or Redex, cheaper at Tool station, the Yara is the best and Halfords are doing a deal at the moment three 3.5 litre pouches for £18.99.

Steve.

[jdragon]

45 minutes ago, Stevey Y said:

Hi about the best two are YARA from Halfords or Redex, cheaper at Tool station, the Yara is the best and Halfords are doing a deal at the moment three 3.5 litre pouches for £18.99.

Steve.

Nice one, thank you 

[jdragon]

It looks like the YARA is discontinued at Halfords now. I used Redex this time. It's almost double the price of other brands like Greenchem and MANNOL 

[Steve Q]

14 hours ago, jdragon said:

It looks like the YARA is discontinued at Halfords now. I used Redex this time. It's almost double the price of other brands like Greenchem and MANNOL 

We use the one from Screwfix in the works minibus with no faults so far. 

[Stevey Y]

On 12/22/2023 at 7:24 AM, jdragon said:

It looks like the YARA is discontinued at Halfords now. I used Redex this time. It's almost double the price of other brands like Greenchem and MANNOL 

Hi Yara is not discontinued it just morphed into Halfords own brand, two 5ltr pouches for £20 the clue is on the packaging where it says made by YARA in small letters at the back of it with their viking logo.

[jdragon]

On 12/24/2023 at 7:33 PM, Stevey Y said:

Hi Yara is not discontinued it just morphed into Halfords own brand, two 5ltr pouches for £20 the clue is on the packaging where it says made by YARA in small letters at the back of it with their viking logo.

Thanks Steve. I've not seen this only ever browsing online, so I'm glad I posted what I thought 🙃🙂

[jdragon]

Does anyone use an anti crystal additive?

https://www.kenteurope.com/en/product/urea-anti-crystal-additive-53843636/