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2.3. Test cycles: Test cycles and weighting factors to be applied: The following requirements of ISO standard 8178-4:2007 shall be used, taking into account the values set out in the table below. For variable speed CI engines test cycle E1 or E5 shall be applied or alternatively, above 130 kW, test cycle E3 may be applied. For variable speed SI engines test cycle E4 shall be applied. Cycle E1, Mode number 1 2 3 4 5 Speed Rated speed Intermediate speed Low-idle speed Torque, % 100 75 75 50 0 Weighting factor 0,08 0,11 0,19 0,32 0,3 Speed Rated speed Intermediate speed Low-idle speed Cycle E3, Mode number 1 2 3 4 Speed, % 100 91 80 63 Power, % 100 75 50 25 Weighting factor 0,2 0,5 0,15 0,15 Cycle E4, Mode number 1 2 3 4 5 Speed, % 100 80 60 40 Idle Torque, % 100 71,6 46,5 25,3 0 Weighting factor 0,06 0,14 0,15 0,25 0,40 Cycle E5, Mode number 1 2 3 4 5 Speed, % 100 91 80 63 Idle Power, % 100 75 50 25 0 Weighting factor 0,08 0,13 0,17 0,32 0,3 Notified bodies may accept tests carried out on the basis of other tests cycles as specified in a harmonised standard and as applicable for the engine duty cycle.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-05 · Text as adopted (Official Journal); later amendments are not incorporated in this text.