KN Numbers, what are they?


The Audatex system provides vehicle manufacturers’ times for removal, refit and replacement as published in their workshop manuals.  The source of our data is the vehicle manufacturers who directly supply our international Data Development Centres with information.

In cases where manufacturers’ do not publish removal, refit, and replacement times for specific operations, and where in our opinion, it is necessary work, Audatex researches and provides this information.  These times are calculated through methodical comparisons with data from equal or similar models, and/or by reference to existing times. Where times are supplied by Audatex, they will be designated with a KN number on reports, thus clearly differentiating what is/is not manufacturers’ data.  KN is an abbreviation for the German phrase Keine Nummer which literally means No Number.

In the case of new model introductions, every effort is made to gather and process the fullest possible manufacturer data available before release. However, it may be that we elect to release a model with some KN numbers in the absence of published times, rather than delay the whole model.  When the information becomes available from the manufacturer, it is updated in the earliest possible monthly data release.

In addition to KN, there are also other codes and annotations used as detailed in the table below:

Op. No.                   Repair description Time
KN Remove/refit front wing 1.5 Operation number and time not provided by the manufacturer. Time is derived by Audatex
63 480 Remove/refit front wing 1.5 Operation number and allowed time are provided by the manufacturer.
63 480 ZAX Remove/refit front wing 1.5 Operation number provided by the manufacturer, but the time does not exist. Time is derived by Audatex
63 480) Remove/refit front wing (bumper removed) 1.2 Operation number and allowed time are provided by the manufacturer. The allowed time is partly reduced. The reduced value is included in another operation or will be calculated separately (Example: R+R bumper).
61 00 Remove/refit bumper 0.3 Operation number and allowed time is provided by the manufacturer.


If you have any further questions please contact our service desk by emailing:  or calling: 01189235666


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