| Subject: | Service Manual Update for All the 2000 L-Series HVAC Service Manuals |
| Models: | 2000 Saturn L-Series Sedans and Wagons |
Purpose
The purpose of this bulletin is to update all the 2000 L-Series HVAC Service
Manuals at your location.
Obtain all the 2000 L-Series HVAC Service Manuals at your location and update
as indicated in this bulletin.
Some early model L-Series vehicles were charged with 0.850 kg (1.875 lbs.) of
refrigerant. The refrigerant charge level is displayed on the A/C charge label found
on the radiator tie bar. A new charge level of 0.950 kg (2.09 lbs.) has been developed.
Vehicles built with 0.850 kg (1.875 lbs.) of refrigerant charge should be charged
to 0.950 kg (2.09 lbs.) when the A/C system is serviced. The A/C charge label should
also be replaced with the new 0.950 kg label (P/N 24421551). The diagnostic system
condition charts account for this change and should be used for both charge levels.
Important: In order to accurately charge A/C systems on vehicles, the charging station
should be set up to display refrigerant weight in kilograms. The displayed unit of
measure can be changed by pressing the Shift/Reset and Enter buttons at the same time.
The display will be blank. Press 0. The display will indicate the current unit of
measure. Pressing Enter will alternate between "LBS" and "KG". When "KG" appears,
press Shift/Reset. Failure to display the weight in kilograms will result in loss
of accuracy due to the two decimal place limitation of the charging station display.
Parts Requirements:
| • | 24421551 Label -- HVAC System Charge |
| | The following pages need to have the A/C charge level corrected to indicate
the new 0.950 kg (2.09 lbs.) charge level. |
| • | On page 14, in FLUID CAPACITIES table, change R134a Refrigerant charge
to 0.950 kg (2.09 lbs.). |
| • | On page 26, under second bullet in middle of page, change charge values
to 0.950 kg (2.09 lbs.). |
| • | On page 27, under second bullet in middle of page, change charge values
to 0.950 kg (2.09 lbs.). |
| • | On page 37, under second bullet in middle of page, change charge values
to 0.950 kg (2.09 lbs.). |
| • | On page 38, under second bullet in middle of page, change charge values
to 0.950 kg (2.09 lbs.). |
| • | On page 71, under step 1 of "CHARGING THE A/C SYSTEM" procedure, change
0.50 kg (1 lb.) to 0.50 kg (1.10 lbs.). |
| • | On page 71, under step 2 of "CHARGING THE A/C SYSTEM" procedure: |
| • | Change 0.50 kg (1 lb.) to 0.50 kg (1.10 lbs.). |
| • | Change .35 kg (.875 lb.) to 0.45 kg (0.995 lbs.). |
| • | Change .850 kg (1.875 lbs.) to 0.950 kg (2.09 lbs.). |
