Explainer · coding

Coding: do it yourself or go to a workshop?

Coding changes settings in your car’s control modules, so features that are already there are switched on or behave differently. Many owners make simple changes themselves. Below you read when that works well and when a workshop is the smarter choice.

Seven Tuning works in Rotterdam and Waddinxveen: the workshop is in Waddinxveen and serves Rotterdam and the surrounding area. Remote coding works anywhere in the Netherlands and abroad, when the job allows it.

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Doing it yourself: when does it work?

A handy owner can do a lot of simple settings, especially on brands with good apps or software (for the Volkswagen group, for example OBDeleven or VCDS). What you need:

• a reliable interface and software for your brand
• a healthy battery voltage, ideally with a charger or stable power supply connected
• knowledge of which channel or parameter you change
• a note or backup of the original values, so you can go back

Where it goes wrong

• A wrong parameter causes fault codes or warnings on the dashboard.
• A write action interrupted by low voltage can leave a module unusable.
• Features that need extra hardware do not work after coding alone.
• On newer cars some changes need online-signed coding or a factory account; an app cannot do that.

When a workshop is smarter

• when extra hardware is retrofitted
• when a module has to be programmed or updated
• for online-signed coding, as on Mercedes-Benz (Xentry/SCN) and Porsche (PIWIS)
• when you first want to know what your equipment allows
• when there are already faults or warnings in the car

What we do

We start with a diagnosis using the original manufacturer tools (for example ISTA and E-Sys for BMW, ODIS and VCDS for the Volkswagen group, Xentry for Mercedes-Benz and PIWIS for Porsche). We tell you beforehand what is possible, code, and go through the features with you afterwards.

More about our services

• Hidden feature activation
• Fault diagnosis
• Apple CarPlay / Android Auto
• Retrofits

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