anx_I__cpt_1__cpt_3__table_1__row_418
8.2.2.2. Opacity Vehicles registered or put into service before 1 January 1980 are exempted from this requirement For vehicles up to emission classes Euro 5 and Euro V : Exhaust gas opacity to be measured during free acceleration (no load from idle up to cut-off speed) with gear lever in neutral and clutch engaged or reading of OBD. The tailpipe testing shall be the default method of exhaust emission assessment. On the basis of an assessment of equivalence, Member States may authorise the use of OBD in accordance with the manufacturer’s recommendations and other requirements. For vehicles as of emission classes Euro 6 and Euro VI : Exhaust gas opacity to be measured during free acceleration (no load from idle up to cut-off speed) with gear lever in neutral and clutch engaged or reading of OBD in accordance with the manufacturer’s recommendations and other requirements^(1). Vehicle preconditioning: 1. Vehicles may be tested without preconditioning, although for safety reasons checks should be made that the engine is warm and in a satisfactory mechanical condition. 2. Precondition requirements: (i) Engine shall be fully warm, for instance the engine oil temperature measured by a probe in the oil level dipstick tube to be at least 80 °C, or normal operating temperature if lower, or the engine block temperature measured by the level of infrared radiation to be at least an equivalent temperature. If, owing to the vehicle configuration, this measurement is impractical, the establishment of the engine’s normal operating temperature may be made by other means, for example by the operation of the engine cooling fan. (ii) Exhaust system shall be purged by at least three free acceleration cycles or by an equivalent method. (a) For vehicles registered or put into service for the first time after the date specified in requirements^(1). opacity exceeds the level recorded on the manufacturer’s plate on the vehicle; X
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Source: EUR-Lex (Cellar) · retrieved 2026-11-02 · Text as adopted (Official Journal); later amendments are not incorporated in this text.