1990 VOLKSWAGEN CORRADO maintenance

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

* A/C-HEATER 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 09:27PM
not be sold as a requirement.
A customer, of course, has the choice of whether or not a
Shop will service his or her vehicle. He or she may decide not to
follow some of your suggestions. The following reasons may be used for
required and suggested services:
Reasons to Require Repair or Replacement:
* component no longer performs intended purpose
* component does not meet a design specification (regardless of
performance)
* component is missing.
Reasons to Suggest Repair or Replacement
* component is close to the end of its useful life (just above
discard specifications or weak; failure likely to occur soon,
etc.)
* address a customer need, convenience or request (stiffen
ride, enhance performance, eliminate noise, etc.)
* comply with maintenance recommended by the vehicle's Original
Equipment Manufacturer (OEM)
* technician's recommendation based on substantial and informed
experience.
HEATING, VENTILATION & AIR CONDITIONING GUIDELINES
* PLEASE READ THIS FIRST *
NOTE: When servicing R-12 Systems it is suggested to use "O" rings,
seals and hose materials which are also compatible with
R-134a in case the vehicle requires retrofitting later
in its life.
COMPRESSOR & CLUTCH ASSEMBLY
COMPRESSORÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄCondition
³ Procedure ³ Note
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄSeized
³ Requires replacement ³
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄInoperative
³ Further inspection ³ Check/service state of

³ required. ³ charge following the

³ ³ manufacturer's recommended

³ ³ service procedures. If the

³ ³ compressor is still

³ ³ inoperative, require

³ ³ repair or replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄNoisy
³ Further inspection ³ Check/service oil level and

* A/C-HEATER SYSTEM UNIFORM INSPECTION GUIDELINES *
Article Text (p. 18)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:27PMÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄAir flow
³ Further inspection ³ If fins cannot be cleaned
obstruction
³ required. ³ or straightened, require

³ ³ replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ HEATER CONTROL VALVE
HEATER CONTROL VALVE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄCondition
³ Procedure
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄCoolant leak
³ Require replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄVacuum leak
³ Require replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄInoperative
³ Require replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄMalfunctioning
³ Suggest replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄRestricted
³ Suggest repair or replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ MIX/AIR CONTROL DOORS
MIX/AIR CONTROL DOORS
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄCondition
³ Procedure
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄBroken/damaged/binding
³ Require repair or replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄDisconnected
³ Require repair or replacement.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ REQUEST FOR MAP MEMBERSHIP INFORMATION
NOTE: To print membership information request form, print portion
of article between dashed lines.
----------------------------------------------------------------------
MAP
Request for Membership Information
I want to be a part of the automotive maintenance and repair
industry's move to improve the level of Customer satisfaction.
Please send me information on how I can become a member of MAP.
Name _________________________________________________________________

* 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,

* ANTI-LOCK BRAKES UNIFORM INSPECTION GUIDELINE *
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
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
not be sold as a requirement.
A customer, of course, has the choice of whether or not a
Shop will service his or her vehicle. He or she may decide not to
follow some of your suggestions. The following reasons may be used for
required and suggested services:
Reasons to Require Repair or Replacement:
* component no longer performs intended purpose
* component does not meet a design specification (regardless of
performance)
* component is missing.
Reasons to Suggest Repair or Replacement
* component is close to the end of its useful life (just above
discard specifications or weak; failure likely to occur soon,
etc.)
* address a customer need, convenience or request (stiffen
ride, enhance performance, eliminate noise, etc.)
* comply with maintenance recommended by the vehicle's Original
Equipment Manufacturer (OEM)
* technician's recommendation based on substantial and informed
experience.
BRAKE SERVICE PROCEDURES REQUIRED AND SUGGESTED
FOR PROPER VEHICLE OPERATION
ANTI-LOCK BRAKE SYSTEMS: GENERAL
Anti-lock brake systems are considered an essential part of
brake systems on which they are found .
Anti-lock brake systems are commonly referred to as "ABS"
and will be referred to as "ABS" throughout these guidelines. Some
ABS components also function as part of a traction control system
(TCS). Inspection, diagnostic and service procedures vary. Refer
to appropriate service manuals for vehicle's specific requirements.
WARNING: When diagnosing and servicing high pressure components,
observe safety procedures and equipment requirements
established by the vehicle manufacturer to reduce the
possibility of serious personal injury.
CAUTION: Most manufacturers prohibit the use of DOT 5 brake fluid
in a system equipped with ABS.
NOTE: Intermittent electrical conditions are often caused by a
loss of ground, poor connection, or water intrusion into

* ANTI-LOCK BRAKES UNIFORM INSPECTION GUIDELINE *
Article Text (p. 10)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:28PM
NOTE: To print membership information request form, print portion
of article between dashed lines.
----------------------------------------------------------------------
MAP
Request for Membership Information
I want to be a part of the automotive maintenance and repair
industry's move to improve the level of Customer satisfaction.
Please send me information on how I can become a member of MAP.
Name _________________________________________________________________
Company/Organization _________________________________________________
Address ______________________________________________________________
______________________________________________________________________
______________________________________________________________________
Phone ___________________________ FAX _______________________________
**************
MAP
808 17th STREET, NW
Suite 200
Washington, D.C 20006
Phone 202 466 7050
Fax 202 223 9569
----------------------------------------------------------------------
END OF ARTICLE

* 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