In TecDoc, an engine is uniquely identified by:
| Field | Description | Example | |-------|-------------|---------| | Make (Hersteller) | Vehicle brand | BMW | | Engine code (Motorcode) | Alphanumeric code | M54B22 | | Engine number (Motornummer) | Sequential serial number | 12345678 | | Displacement (Hubraum) | in cc | 2171 cc | | Power (kW/PS) | in kW and PS | 125 kW / 170 PS | | Fuel type | Petrol, Diesel, etc. | Petrol | tecdoc motornummer
How does TECDOC stack up against OEM systems? In TecDoc, an engine is uniquely identified by:
| System | Strengths | Weakness | | :--- | :--- | :--- | | TECDOC | Cross-brand; shows aftermarket alternatives; Motornummer search standard. | Subscription cost; heavy interface. | | ETKA (VW/Audi) | Extremely precise for VAG group; updates weekly. | Only works for VAG; no aftermarket prices. | | EPC (Mercedes) | Deep vehicle history by VIN. | Motornummer search is secondary. | | TECDOC Motornummer | Uniquely allows search by serial number across all brands. | Requires training to use advanced filters. | Cross-check – For critical parts (head gasket, timing
The Verdict: If you work on multiple brands (independent workshop), TECDOC using the Motornummer is the only viable solution. If you are a VW specialist, ETKA is fine, but TECDOC gives you the cross-referencing to aftermarket brands like Febi, Meyle, or Vaico.
To provide a detailed technical and practical guide to the handling of Motornummer within TecDoc, including: