Fuel consumption display correction

COMMUNITY-SOURCED · MK5 · GAUGE CLUSTER

Corrects an inaccurate fuel consumption (MPG or L/100 km) reading on the trip computer.

Applies to
VW Golf Mk5 and Jetta Mk5 (1K) with a Mid or High instrument cluster.

Not confirmed for
Low-line clusters, 2010 Jetta, Golf Plus, Audi A3 8P

Module
17 Instruments (instrument cluster). Ross-Tech label file 1K0-920-xxx-17.lbl. vag-coding.net: Mid/High range clusters only.

Method
Adaptation

Login (security access)
13861

1 · Before you start

Run a full Auto-Scan and save it. In 17 Instruments (instrument cluster), write down or screenshot the current value of every setting before you change it.

2 · VCDS

1. Open 17 Instruments. If adaptation is refused, use Security Access 13861 (Ross-Tech lists it as 'Adaptation Enabling').

2. Open Adaptation - 10, channel 003 'Consumption Correction', and read the stored value (standard is 100).

3. Work out the new value: old value x real consumption / displayed consumption, for L/100 km (Ross-Tech's formula). The range is 85-115 in 1% steps.

4. Enter the new value, Test, then Save.

Notes

vag-coding.net says the correction also affects the fuel quantity / range shown. For MPG displays the ratio is inverted (displayed / actual); vag-coding.net's examples imply this, but its worked example is partly garbled.

Sources: wiki.ross-tech.com · wiki.ross-tech.com · vag-coding.net · vag-coding.net

Reference only. No guarantee of compatibility. MK6IX doesn’t answer coding questions or troubleshoot coding. Back up your original coding before making any change. You code your car at your own risk.