Get Introduction Guide for Volkswagen Vento 4 Door First Generation (2010-2022)

Introduction

What

Why

Since the introductions of the D-Jetronic fuel injection

system in ModelYear (MY) 1968, the Motronic

ME7 torque-based system in MY 1999, and the

current Motronic MED17.5 dual gasoline/diesel

system, Volkswagen engine management systems

continue to evolve to meet the demands of changing

emissions and fuel economy standards.

Volkswagen is continually upgrading engine control

systems to meet the increasing demands for

increased performance and greater fuel economy, all

the while decreasing tailpipe emissions.

California emission standards have been traditionally

more stringent than the EPA requirements, but their

evolution and structure is similar to that of the federal

legislation. The California Air Resources Board (CARB)

ﬁrst adopted Low Emission Vehicle (LEV) standards in

1990. These ﬁrst LEV standards were in effect from

1994 through 2003.

This Self Study Program (SSP) discusses changes

and additions implemented since the April of 2000

publication of SSP 841003, Engine Management

Systems. Components that are unchanged from

previous engine management systems are listed with

the new system, but are not described in detail. If a

component is not described in this document, you

will be referred to a previous SSP that contains the

information.

LEV II regulations, adopted in November 1998, are

in effect from 2004 through 2010. LEV II affects

passenger cars, light-duty trucks (such as the

Touareg 2), and medium-duty vehicles.

A number of other states have adopted emission

standards equivalent to the California LEV II

legislation, including NewYork, Massachusetts,

Maine, and Vermont. Adoption of California standards

has been considered also by Connecticut, Rhode

Island, Pennsylvania, New Jersey, Oregon, and

Washington.

1

Introduction

Low EmissionVehicle (LEV) Standards

These California emission standards, which applied through model year 2003, were expressed using the following

emission categories:

• Tier 1

• Transitional Low Emission Vehicles (TLEV)

• Low Emission Vehicles (LEV)

• Ultra Low Emission Vehicles (ULEV)

• Super Ultra Low Emission Vehicles (SULEV)

• Zero Emission Vehicles (ZEV)

Car manufacturers were required to produce a percentage of vehicles certiﬁed to increasingly more stringent

emission categories, according to schedules based on vehicle ﬂeet emission averages for each manufacturer. After

2003, Tier 1 andTLEV standards were eliminated as available emission categories.

The same standards for gaseous pollutants applied to diesel- and gasoline-fueled vehicles. Particulate Matter (PM)

standards applied to diesel vehicles only. Emissions were measured over the FTP 75 test and are expressed in g/

mile. The additional Supplemental FederalTest Procedures (SFTP) were phased-in in California between 2001 and

2005.

2

Introduction

California Emission Standards for Light-DutyVehicles (FTP 75, g/mi)

50,000 miles/5 years

100,000 miles/10 years

categories

• Increased emission control durability standards

from 100,000 miles to 120,000 miles for passenger

cars and light trucks

• Elimination of the TLEV emission category

• Inclusion of heavier sport utility vehicles and pickup

trucks in the passenger car emission standards

• Creation of Partial Zero-Emission Vehicle (PZEV)

credits for vehicles that achieve near zero

emissions

– The reclassiﬁcation was phased-in by the year

2007

• Extension and tightening of the ﬂeet average

emission standards during 2004-2010 (Corporate

Average Fuel Economy (CAFE), that include all new

vehicles from an automaker)

– The credits include full ZEV credit for a stored

hydrogen fuel cell vehicle, 0.7 credit for

methanol reformer fuel cell vehicles, 0.4 credit

for a compressed natural gas SULEV and 0.2

for a gasoline fueled SULEV

• Creation of the SULEV category for light-duty

vehicles (SULEVs emit only a single pound of

hydrocarbons during 100,000 miles of driving

– about the same as spilling a pint (0.5 liter) of

gasoline)

4

Introduction

Under the LEV II standard, NOx and PM standards for all emission categories are signiﬁcantly tightened and apply

to both gasoline and diesel vehicles. Under revisions adopted on November 15, 2001 gasoline vehicles are no

longer exempted from the PM standard.

California LEV II Emission Standards, Passenger Cars and Light DutyVehicles < 8500 lbs, g/mi

50,000 miles/5 years

120,000 miles/11 years

Category

*

NMOG

0.075

0.040

–

CO

3.4

1.7

–

NOx

0.2

–

PM

–

HCHO NMOG

CO

4.2

2.1

1.0

NOx

0.3

PM

0.08

0.04

0.01

HCHO

0.018

0.011

0.004

LEV

0.015

0.008

–

0.090

0.055

0.010

ULEV

SULEV

–

0.3

–

0.02

Abbreviations:

HCHO Formaldehyde

CO Carbon Monoxide

LEV

Low Emission Vehicle

ULEV Ultra Low Emission Vehicle

SULEV Super Ultra Low Emission Vehicle

NMOG Non-Methane Organic Gases

NMHC Non-Methane Hydrocarbons

NOx

PM

Oxides of Nitrogen

Particulate Matter

g/mi Grams per Mile

Nearly 2000 lbs

(900 kg).

How AreWe Doing?

A new car in 1965 produced about a ton of smog-

forming hydrocarbons during 100,000 miles of driving.

California’s low-emission standards cut that to around

50 pounds for the average new car in 1998.

LEV II further reduces emissions from the average

new 2010 car to approximately 10 pounds.

50 lbs

(22 kg).

A SULEV emits only a single pound of hydrocarbons

during 100,000 miles of driving.

10 lbs.

(4.5 kg)

1 lb

(0.5 kg)

1965

1998-LEV I

2010-LEV II 2010 SULEV

5

Introduction

Application Overview

The different versions of the engine management

systems contain components and/or software speciﬁc

for their applications.

ME 7.x

ME 7

• 2.8L VR6

ME 7.1

• 2.8L 5V V6

ME 7.1.1

• 2.5L 5-cylinder 4-V

8420_06

• 3.2 VR6 (MY 2003 through MY 2006)

• W8

2.8L 5VV6

• 4.2L V8-5V

• W12

ME 7.5.1

• 1.8L 5V turbo

8420_05

1.8L 5VTurbo

6

Introduction

MED 9.x

MED 9.1

• 2.0L FSI turbo

• 3.2L VR6 FSI (MY 2007 and up)

• 3.6L VR6 FSI

MED 9.1.1

• 4.2L V8 FSI

388_003

4.2LV8 FSI

MED 17.x

MED 17.5

• 2.0L Chain-Driven TSI

2-0L

2.0L Chain-DrivenTSI

7

Introduction for Your Volkswagen Vento 4 Door First Generation (2010-2022)

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