A/C System - Poor Performance: Overview

Classification:
HA01-002

Reference:
ITB01-047

Date:
September 1, 2001

2002 Q45 A/C SYSTEM PERFORMANCE

APPLIED VEHICLES:
2002 Q45 (F50)

APPLIED DATE:
Vehicles built before September 1, 2001

SERVICE INFORMATION

If an Applied 2002 Q45 A/C system cools slowly or does not get cold enough, this bulletin provides a series of service procedures intended to improve the cool-down performance of the A/C system.

Installation and replacement parts for the Evaporator Seal Application, Blower Motor Replacement, and Engine Compartment - A/C System Parts Replacement procedures are provided in the A/C Service Kit (see PARTS INFORMATION section for detail).

Replacement grille parts needed to complete the A/C Ventilator Grilles Replacement Procedure are provided in the Grille Replacement Kit. The Grille Replacement kit must be ordered based on interior trim color (see Step 1 under A/C Ventilator Grilles Replacement Procedure and the PARTS INFORMATION section for detail).

Service Procedure Overview:

^ Install an evaporator seal

^ Replace the blower motor

^ Replace the ventilation air filter (micro filter)

^ Replace the right and left-hand side ventilator grilles

^ Replace the left center ventilator grille

^ Replace the right and left b-pillar instrument side finishers (if vehicle is equipped)

^ Replace the alternator/water pump/A-C compressor belt

^ Replace the low-pressure pipe

^ Replace the low-pressure flexible hose

^ Replace the compressor

^ Reduce the quantity of oil in the replacement compressor

^ Increase the amount of refrigerant

^ Replace the A/C information label on the underside of the hood

^ Reprogram the vehicle's ECM to the New ECM Data P/N (if needed)

Complete all of the steps in the Service Procedure provided in this bulletin and use the A/C Service kit and color appropriate Grille Replacement kit shown in the PARTS INFORMATION section of this bulletin to resolve this incident, if it should occur.





PARTS INFORMATION

CLAIMS INFORMATION





Submit a Primary Failed Part (PP) line claim using the claims coding table shown.