1990 VOLKSWAGEN CORRADO engine

1990 Volkswagen Corrado All Categories All Sections
Title List for Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:54PM* A/C-HEATER SYSTEM UNIFORM INSPECTION GUIDELINES ** ANTI-LOCK BRAKES UNIFORM INSPECTION GUIDELINE ** AUTO TRANS DIAGNOSIS MENU - VOLKSWAGEN* BRAKE SYSTEM UNIFORM INSPECTION GUIDELINES ** ELECTRICAL SYSTEM UNIFORM INSPECTION GUIDELINES ** ENGINE SYSTEMS UNIFORM INSPECTION GUIDELINES ** EXHAUST SYSTEM UNIFORM INSPECTION GUIDELINES ** STEERING UNIFORM INSPECTION GUIDELINES ** SUSPENSION UNIFORM INSPECTION GUIDELINES ** SYMPTOM CHECK LIST *1.8L 4-CYL 8-VALVE & 1.8L 4-CYL 16-VALVEA - ENGINE/VIN IDA/C COMPRESSOR OIL CHECKINGA/C COMPRESSOR SERVICINGA/C SYSTEM GENERAL DIAGNOSTIC PROCEDURESA/C SYSTEM PRECAUTIONSA/C-HEATER SYSTEM - MANUALAA - USING THIS SECTION (GENERAL HELP INFORMATION)ABBREVIATIONSABBREVIATIONSALTERNATOR & REGULATOR - BOSCHANTI-LOCK BRAKE SAFETY PRECAUTIONSANTI-LOCK BRAKE SYSTEMB - EMISSION APPLICATIONC - SPECIFICATIONSCOMPUTER RELEARN PROCEDURESD - ADJUSTMENTSDRIVE AXLE - GEAR TOOTH CONTACT PATTERNSE - THEORY/OPERATION - DIGIFANTELECTRICAL COMPONENT LOCATORELECTROSTATIC DISCHARGE WARNING - BASIC INFORMATIONEMISSION CONTROL VISUAL INSPECTION PROCEDURESENGINE OVERHAUL PROCEDURES - GENERAL INFORMATIONF - BASIC TESTINGFUEL HOSE MAY SHRINK & LEAK CAUSING FIRE: NEW CLAMPFUEL LEAKAGE COULD CAUSE FIRE:NEW FUEL HOSE & CLAMPSFUSES & CIRCUIT BREAKERSG - TESTS W/CODESGEAR TOOTH CONTACT PATTERNSGENERAL COOLING SYSTEM SERVICINGH - TESTS W/O CODESHEATER SYSTEMI - SYSTEM/COMPONENT TESTSINSTRUMENT PANELINTERFERENCE VERIFICATION CHECK FOR OHC ENGINE

J - PIN VOLTAGE CHARTSK - SENSOR RANGE CHARTSL - WIRING DIAGRAMSM - VACUUM DIAGRAMSMAINTENANCE INFORMATIONMAINTENANCE REMINDER LIGHT RESET PROCEDURESMETRIC CONVERSIONSMETRIC CONVERSIONSMIRRORS - POWERN - REMOVE/INSTALL/OVERHAULP - EGR FUNCTION TESTINGPOSSIBLE ENGINE STALL DUE TO FUEL RESTRICTIONPRE-ALIGNMENT CHECKSSCHEDULED SERVICESSERVICE INDICATOR & WARNING LIGHTSSTARTER - BOSCHSTEERING COLUMNSTEERING COLUMN SWITCHESSTEERING SYSTEM - POWERSUSPENSION - FRONTSUSPENSION - REARTRANSMISSION REMOVAL & INSTALLATION - A/TTRANSMISSION SERVICING - A/TTRANSMISSION SERVICING - M/TTROUBLE SHOOTING - BASIC PROCEDURESWAVEFORMS - INJECTOR PATTERN TUTORIALWHEEL ALIGNMENT SPECIFICATIONS & PROCEDURESWHEEL ALIGNMENT THEORY/OPERATIONWIPER/WASHER SYSTEMWIRING DIAGRAM SYMBOLSWIRING DIAGRAMS

* A/C-HEATER SYSTEM UNIFORM INSPECTION GUIDELINES *
Article Text (p. 2)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:27PM
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
It is MAP policy that all exhaust, brake, ABS, steering and
suspension, wheel alignment, tires and wheels, driveline, engine
performance and maintenance and heating, ventilation and air
conditioning services be offered and performed under the guidelines
and procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be required or suggested.
In addition, suggestions may be made to satisfy the needs expressed by
the customer.
This section lists the various parts and conditions that
indicate required or suggested service or part replacement. Although
this list is extensive, it is not inclusive. In addition to this list,
a technician may make a suggestion. This suggestion must be based on
substantial and informed experience or the vehicle manufacturer's
recommended service interval.
Some conditions indicate that service or part replacement is
required because the part in question is no longer providing the
function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
* Example: An exhaust pipe has corroded severely and has a hole
in it through which exhaust gases are leaking. Replacement of
the exhaust pipe in this case is required due to functional
failure.
* Example: A brake rotor has been worn to the point where it
measures less than the vehicle manufacturer's specifications.
Replacement of the rotor is required because it does not meet
design specifications.
Some conditions indicate that a service or part replacement
is suggested because the part is close to the end of its useful life
or to address a customer's need, convenience or request. If a
customer's vehicle has one of these conditions, the procedure may only
be to suggest service.
* Example: An exhaust pipe is rusted, corroded or weak, but no
leaks are present. In this case, the exhaust pipe has not
failed. However, there is evidence that the pipe may need
replacement in the near future. Replacement of the pipe may
be suggested for the customer's convenience in avoiding a
future problem.
* Example: The customer desires improved ride and/or handling,
but the vehicle's shocks or struts have not failed. In this
case, replacement may be suggested to satisfy the customer's
wishes. In this case, replacement of the shocks or struts may

* ANTI-LOCK BRAKES UNIFORM INSPECTION GUIDELINE *
Article Text (p. 2)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:28PM
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
It is MAP policy that all exhaust, brake, ABS, steering
and suspension, wheel alignment, tires and wheels, driveline,
engine performance and maintenance and heating, ventilation and air
conditioning services be offered and performed under the guidelines
and procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be required or suggested.
In addition, suggestions may be made to satisfy the needs expressed by
the customer.
This section lists the various parts and conditions that
indicate required or suggested service or part replacement. Although
this list is extensive, it is not inclusive. In addition to this list,
a technician may make a suggestion. This suggestion must be based on
substantial and informed experience or the vehicle manufacturer's
recommended service interval.
Some conditions indicate that service or part replacement
is required because the part in question is no longer providing
the function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
* Example: An exhaust pipe has corroded severely and has a hole
in it through which exhaust gases are leaking. Replacement of
the exhaust pipe in this case is required due to functional
failure.
* Example: A brake rotor has been worn to the point where it
measures less than the vehicle manufacturer's specifications.
Replacement of the rotor is required because it does not meet
design specifications.
Some conditions indicate that a service or part replacement
is suggested because the part is close to the end of its useful life
or to address a customer's need, convenience or request. If a
customer's vehicle has one of these conditions, the procedure may
only be to suggest service.
* Example: An exhaust pipe is rusted, corroded or weak, but no
leaks are present. In this case, the exhaust pipe has not
failed. However, there is evidence that the pipe may need
replacement in the near future. Replacement of the pipe may
be suggested for the customer's convenience in avoiding a
future problem.
* Example: The customer desires improved ride and/or handling,

* BRAKE SYSTEM UNIFORM INSPECTION GUIDELINES *
Article Text
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:28PM
ARTICLE BEGINNING
GENERAL INFORMATION
Brake Systems - Motorist Assurance Program
Standards For Automotive Repair
All Makes & Models
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
The Motorist Assurance Program (MAP) is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
The Motorist Assurance Program was established as an
industry-wide effort to address concerns raised by regulators, the
media and consumers questioning our ethics and methods of doing
business. The automotive repair industry had been bombarded by months
of negative stories in the media and scrutiny from state and federal
regulators who focused on how the need for repairs is determined. MAP
was formed as an industry response to this issue.
Our mission is to strengthen the relationship between the
consumer and the auto repair industry. We produce materials that give
motorists the information and encouragement to take responsibility for
their vehicles - through proper, manufacturer-recommended,
maintenance. We encourage participatinf service and repair shops
(including franchisees and dealers) to adopt a Pledge to their
Customers and the Motorist Assurance Program developed Standards of
Service. All participating service providers have agreed to subscribe
to this Pledge and to adhere to the promulgated Standards of Service
which demonstrates to their customers that they are serious about
customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made according to industry guidelines.
After learning that neither the car manufacturers nor any other source
had complete guidelines, leading industry organizations, along with
other industry participants banded together to address this
challenging task. During the past two and a half years, they
successfully developed industry inspection guidelines for the
following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical systems.
Guidelines for Drive Train and Transmision are currently being
promulgated. Revisions to the inspection guidelines for Exhaust,
Brakes/ABS and Steering and Suspension Systems, which were issued two
years ago, are now being published for implementation beginning spring
1997. Participating shops utilize these Uniform Inspection Guidelines
as part of the inspection process and for communicating their findings
to their customers.
The Motorist Assurance Program continues to work

* BRAKE SYSTEM UNIFORM INSPECTION GUIDELINES *
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:28PM
businesses working to improve the industry. Media sources also look to
MAP to provide information and advice to consumers and on working with
automotive technicians and repair establishments.
In the next few months, MAP plans to assist member repair
facilities in implementing the MAP Pledge to Customers, establishing
an alternate dispute resolution system to help resolve customer
complaints within the industry, and developing a shop accreditation
program to encourage policies in concert with the MAP Standards of
Service and Inspection Guidelines.
MAP has united the aftermarket behind its consumer-oriented
goals and has established itself both within and outside of the
industry. We welcome you to join us as MAP continues its outreach.
With your support, both the automotive repair industry and your
customers will reap the benefits. Please contact MAP at:
808 17th Street, NW Suite 200
Washington, D.C. 20006
Ph. (202) 466-7050 Fax (202) 223-9569
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
It is MAP policy that all exhaust, brake, ABS, steering and
suspension, wheel alignment, tires and wheels, driveline, engine
performance and maintenance and heating, ventilation and air
conditioning services be offered and performed under the guidelines
and procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be required or suggested.
In addition, suggestions may be made to satisfy the needs expressed by
the customer.
This section lists the various parts and conditions that
indicate required or suggested service or part replacement. Although
this list is extensive, it is not inclusive. In addition to this list,
a technician may make a suggestion. This suggestion must be based on
substantial and informed experience or the vehicle manufacturer's
recommended service interval.
Some conditions indicate that service or part replacement is
required because the part in question is no longer providing the
function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
* Example: An exhaust pipe has corroded severely and has a hole
in it through which exhaust gases are leaking. Replacement of
the exhaust pipe in this case is required due to functional
failure.
* Example: A brake rotor has been worn to the point where it

* ELECTRICAL SYSTEM UNIFORM INSPECTION GUIDELINES *
Article Text (p. 3)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:29PM
estimate.
V. Work Authorization - No work will be performed without the
customer's prior approval.
VI. Limited Warranty - A minimum limited warranty will be
offered of 90 days or 4,000 miles, whichever comes first, covering
parts and labor.
VII. Returned Parts - All customers will be entitled to the
return of old parts, or if they choose, they may examine the parts
prior to leaving the store. Where failed parts are required to be
returned to the manufacturer in order to honor the warranty, the
customer will be allowed to examine the parts.
VIII. Classification of Parts - Replaced parts will be
identified as new, remanufactured, rebuilt or used. MAP participants
will inform the customer and indicate on the estimate and invoice
whether a part is new, remanufactured, rebuilt or used.
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
It is MAP policy that all exhaust, brake, ABS, steering and
suspension, wheel alignment, tires and wheels, driveline, engine
performance and maintenance and heating, ventilation and air
conditioning services be offered and performed under the guidelines
and procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be required or suggested.
In addition, suggestions may be made to satisfy the needs expressed by
the customer.
This section lists the various parts and conditions that
indicate required or suggested service or part replacement. Although
this list is extensive, it is not inclusive. In addition to this list,
a technician may make a suggestion. This suggestion must be based on
substantial and informed experience or the vehicle manufacturer's
recommended service interval.
Some conditions indicate that service or part replacement
is required because the part in question is no longer providing
the function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
* Example: An exhaust pipe has corroded severely and has a hole
in it through which exhaust gases are leaking. Replacement of
the exhaust pipe in this case is required due to functional
failure.

* ENGINE SYSTEMS UNIFORM INSPECTION GUIDELINES *
Article Text
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:31PM
ARTICLE BEGINNING
GENERAL INFORMATION
Engine Maintenance & Performance
Uniform Inspection Guidelines
All Makes & Models
Last Updated: December, 1994
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
The Motorist Assurance Program (MAP) is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
The Motorist Assurance Program was established as an
industry-wide effort to address concerns raised by regulators, the
media and consumers questioning our ethics and methods of doing
business. The automotive repair industry had been bombarded by months
of negative stories in the media and scrutiny from state and federal
regulators who focused on how the need for repairs is determined. MAP
was formed as an industry response to this issue.
Our mission is to strengthen the relationship between the
consumer and the auto repair industry. We produce materials that give
motorists the information and encouragement to take responsibility for
their vehicles - through proper, manufacturer-recommended,
maintenance. We encourage participatinf service and repair shops
(including franchisees and dealers) to adopt a Pledge to their
Customers and the Motorist Assurance Program developed Standards of
Service. All participating service providers have agreed to subscribe
to this Pledge and to adhere to the promulgated Standards of Service
which demonstrates to their customers that they are serious about
customer satisfaction.
These Standards of Service require that an inspection of the
vehicle's (problem) system be made according to industry guidelines.
After learning that neither the car manufacturers nor any other source
had complete guidelines, leading industry organizations, along with
other industry participants banded together to address this
challenging task. During the past two and a half years, they
successfully developed industry inspection guidelines for the
following systems: Exhaust, Brakes, ABS, Steering and Suspension,
Engine Maintenance and Performance, HVAC, and Electrical systems.
Guidelines for Drive Train and Transmision are currently being
promulgated. Revisions to the inspection guidelines for Exhaust,
Brakes/ABS and Steering and Suspension Systems, which were issued two
years ago, are now being published for implementation beginning spring
1997. Participating shops utilize these Uniform Inspection Guidelines
as part of the inspection process and for communicating their findings