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L-SB-0032-08
June 5, 2008
Excessive Dust from HVAC Vents
Service Category
Vehicle Interior
Applicability
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2007 – 2008 | ES350 | |
| 2007 – 2009 | RX350 | |
| 2006 – 2008 | RX400H |
Introduction
Some customers may complain of excessive dust or powder from the HVAC vents. The evaporator coating has been improved to help reduce this concern. Follow the procedures listed below to remove and replace the evaporator with a new service part.
Warranty Information
| MODEL | OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|---|
| ES 350 | 883611 | R & R Evaporator | 6.8 | 88501-33190 | 62 | 17 |
| RX 350 | 4.0 | 88501-48250
88501-0E010 |
||||
| RX 400h | 4.0 | 88501-48170 |
APPLICABLE WARRANTY
- This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle’s in-service date.
- Warranty application is limited to correction of a problem based upon a customer’s specific complaint.
Production Change Information
This TSIB applies to RX350 and RX400h vehicles produced BEFORE the Production Change Effective VINs shown below and to ALL 2007 – 2008 model year ES350 vehicles.
| MODEL | PLANT | DRIVETRAIN | PRODUCTION CHANGE EFFECTIVE VIN |
|---|---|---|---|
| RX350 | TMK | 2WD | JTJGK31U*90015671 |
| JTJGK31U*99852236 | |||
| 4WD | JTJHK31U*92052810 | ||
| JTJHK31U*92855561 | |||
| TMMC | 2WD | 2T2GK31U*8C056682 | |
| 4WD | 2T2HK31U*8C096059 | ||
| RX400h | TMK | 2WD | JTJGW31U*82007518 |
| JTJGW31U*82850683 | |||
| 4WD | JTJHW31U*82051118 | ||
| JTJHW31U*82855196 |
Parts Information
| MODEL | PLANT | PREVIOUS PART NUMBER | CURRENT PART NUMBER | PART NAME | QTY |
|---|---|---|---|---|---|
| ES350 | TMK | 88501-33190 | 88501-28400  |
Evaporator Assembly | 1 |
| RX350 | 88501-48250 | 88501-48251 | 1 | ||
| TMMC | 88501-0E011 | ||||
| RX400h | TMK | 88501-48170 | 88501-48171 | 1 |
Required Tools & Equipment
| EQUIPMENT | PART NUMBER | QTY |
| R-134a Refrigerant Recovery/Recycling Machine | Robinair ROB34200* (or equivalent) | 1 |
* Lexus Approved Dealer Equipment.
NOTE
Additional refrigerant service equipment may be ordered by calling Lexus Approved Dealer Equipment (ADE) at 1-800-368-6787.
Repair Procedure
- Confirm the condition.
Check for excessive white dust or powder on the top of the instrument panel and interior surfaces.
- If white dust or debris IS present, check the cabin air filter for damage and for other external sources of debris. Proceed to step 2 for replacement of the evaporator if all checks are OK.
- If white dust or debris is NOT present, there is no need to replace the evaporator.
- Remove the evaporator.
Refer to the Technical Information System (TIS), applicable model and model year Repair Manual:
- 2007 ES350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2008 ES350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2007 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2008 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2009 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2006 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2007 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- 2008 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Removal and Disassembly”
- Clean the air conditioning unit, blower unit, HVAC vents, face ducts, and defroster nozzle. A. Use a warm soap and water solution to properly clean out the air conditioning unit.
- After cleaning the air conditioning unit, use compressed air to blow out all debris from the blower unit, HVAC vents, face ducts, and defroster nozzle.
NOTE
Be sure to clean all HVAC vents and passages BEFORE installing the new service part.
- Install the NEW evaporator.
Refer to TIS, applicable model and model year Repair Manual:
- 2007 ES350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2008 ES350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2007 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2008 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2009 RX350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2006 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2007 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- 2008 RX400h:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning Unit: Reassembly and Installation”
- After repair, confirm proper operation of the HVAC controls, and cooling and heater functions.
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