OpenLegislation

Division 8.2.1 Positive ignition engine emissionsX1

United Kingdom

Original text. Later amendments are not shown.

8.2.1.1.

Exhaust emissions control equipment

Visual inspection

(a)

Emission control equipment fitted by the manufacturer absent, modified or obviously defective.

X

(b)

Leaks which would affect emission measurements.

X
Item Method Reasons for failure Assessment of deficiencies
Minor Major Dangerous

8.2.1.2.

Gaseous emissions

  • For vehicles up to emission classes Euro 5 and Euro V ( 7 ):

    measurement using an exhaust gas analyser in accordance with the requirements 1 or reading of OBD. Tailpipe testing shall be the default method of exhaust emission assessment. On the basis of an assessment of equivalence, and by taking into account the relevant type- approval legislation, 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 ( 8 ):

    measurement using an exhaust gas analyser in accordance with the requirements 1 or reading of OBD in accordance with the manufacturer's recommendations and other requirements 1 .

    Measurements not applicable for two-stroke engines.

(a)

Either gaseous emissions exceed the specific levels given by the manufacturer;

X

(b)

Or, if this information is not available, the CO emissions exceed,

  1. (i)

    for vehicles not controlled by an advanced emission control system,

    • 4,5 %, or

    • 3,5 %

    according to the date of first registration or use specified in requirements 1 .

  2. (ii)

    for vehicles controlled by an advanced emission control system,

    • at engine idle: 0,5 %

    • at high idle: 0,3 % or

    • at engine idle: 0,3 % ( 7 )

    • at high idle: 0,2 %

    according to the date of first registration or use specified in requirements 1 .

X

(c)

Lambda coefficient outside the range 1 ± 0,03 or not in accordance with the manufacturer's specification;

X

(d)

OBD read-out indicating significant malfunction.

X
Item Method Reasons for failure Assessment of deficiencies
Minor Major Dangerous

Annotations

Editorial notes

X1

Substituted by Corrigendum to Directive 2014/45/EU of the European Parliament and of the Council of 3 April 2014 on periodic roadworthiness tests for motor vehicles and their trailers and repealing Directive 2009/40/EC (Official Journal of the European Union L 127 of 29 April 2014).