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3 The Golf models assessed The Golf models assessed <strong>Volkswagen</strong>‘s environmental commendation for the Golf describes and analyses the environmental impacts of selected Golf models. We have compared diesel and petrolengined models from the current model range (Golf VI) with their predecessors (Golf V). The results are based on Life Cycle Assessments drawn up in accordance with the standards DIN EN ISO 14040 and 14044. All the definitions and descriptions required for preparing these Life Cycle Assessments were drawn up in accordance with the standards mentioned above and are explained below. Aim and target group of the assessment <strong>Volkswagen</strong> has been producing Life Cycle Assessments for over ten years to provide detailed information on the environmental impacts of vehicles and components for our customers, shareholders and other interested parties within and outside the company. The aim of this Life Cycle Assessment is to describe the environmental profiles of the current Golf models with diesel and petrol engines and compare them with their predecessors. We compared the Golf V 1.9 TDI7 with its successor, the Golf VI 2.0 TDI8 . Both these diesel models are equipped with a diesel particulate filter (DPF). The petrol-engined Golf V 1.6 MPI9 was compared with its successor, the Golf VI 1.6 MPI10 with seven-speed DSG ® dual-clutch gearbox11 . Function and functional unit of the vehicle systems assessed The “functional unit” for the assessment was defined as the transportation of passengers in a five-seater vehicle over a total distance of 150,000 kilometres in the New European Driving Cycle (NEDC) with comparable utilisation characteristics (such as performance and loading volume – see technical data in Table 1). 7 5.1 l/100km (NEDC) 135g CO2/km 8 4.5 l/100km (NEDC) 119g CO2/km 9 7.4 l/100km (NEDC) 176g CO2/km 10 6.7 l/100km (NEDC) 157g CO2/km 11 In each case, the engine/transmission combination with the lowest fuel consumption was selected for the comparison. This was normally a model with manual gearbox. However, in the case of the Golf VI MPI, the model with 7-speed DSG gearbox has the lowest consumption. The greater comfort and convenience of the DSG gearbox was not taken into account in the assessment. 12
Engine capacity [cm 3 ] 3 The Golf models assessed Output [kW] Gearbox Fuel Emission standard Maximum speed [km/h] Acceleration 0-100 km/h [s] Max torque [Nm] DIN unladen weight [kg] Loading volume [l] Range [km] Acoustics [db(A)] (standing/driving noise) Golf V 1.9 TDI DPF 1896 77 5-speed manual Diesel Euro 4 187 11.3 250 / 1900 1251 350 / 1305 1078 78 / 71 Scope of assessment Golf V 1.6 MPI The scope of the assessment was defined in such a way that all relevant processes and substances are considered, traced back to the furthest possible extent and modelled at the level of elementary flows in accordance with ISO 14040. This means that only substances and energy flows taken directly from the environment or released into the environment without prior or subsequent treatment exceed the scope of the assessment. The only exceptions to this rule are the material fractions formed in the recycling stage. The vehicle manufacturing phase was modelled including all manufacturing and processing stages for all vehicle parts and components. The model included all steps from the extraction of raw materials and the manufacture of semifinished products right through to assembly. As regards the vehicle’s service life, the model includes all relevant processes from fuel production and delivery through to actual driving. The analysis of the fuel supply process includes shipment from the oilfield to the refinery, the refining process and transportation from the refinery to the filling station. Vehicle maintenance is not included in the assessment as previous studies demonstrated that maintenance does not cause any significant environmental impacts [Schweimer and Levin, 2000]. 13 Table 1: Technical data of vehicles assessed Golf VI 2.0 TDI DPF 1968 81 5-speed manual Diesel Euro 5 194 10.7 250 / 1750 1266 350 / 1305 1222 75 / 71 1595 75 5-speed manual petrol (Super) Euro 4 184 11.4 148 / 3800 1173 350 / 1305 743 81 / 72 Golf VI 1.6 MPI with DSG ® 1595 75 7-speed DSG petrol (Super) Euro 5 188 11.3 148 / 3800 1190 350 / 1305 820 78 / 70
Page 1 and 2: The Golf Environmental Commendation
Page 3 and 4: Introduction Introduction With 26 m
Page 5 and 6: 1 The Golf - a defining character T
Page 7 and 8: 2 Life Cycle Assessments for ecolog
Page 9 and 10: 2 Life Cycle Assessments for ecolog
Page 11: 2 Life Cycle Assessments for ecolog
Page 15 and 16: 3 The Golf models assessed Environm
Page 17 and 18: 3 The Golf models assessed Fig. 7:
Page 19 and 20: 4 Model assumptions and findings of
Page 21 and 22: 5 Results of the Life Cycle Assessm
Page 37 and 38: 6 Recycling end-of-life vehicles wi
Page 39 and 40: 6 Recycling end-of-life vehicles wi
Page 41 and 42: 7 We‘re driving mobility forward
Page 43 and 44: 9 Validation Validation The stateme
Page 45 and 46: Kohlenwasserstoffe Stickoxide Kohle
Page 47 and 48: List of abbreviationss List of abbr
Page 57: © Volkswagen AG Konzernforschung U

Detailed Version - Volkswagen AG

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