Service bulletin LTB00604NAS1
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10100983 |
| Published by NHTSA | 2017-05-30 |
| Manufacturer's number | LTB00604NAS1 |
| Manufacturer's date | 2014-01-06 |
| NHTSA component | SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM |
NHTSA's summary
"SITUATION: A 'KNOCK' SOUND FROM ONE OR BOTH FRONT AIR SPRINGS WHEN TRAVELING OVER SPEED BUMPS AT LOW SPEED MAY BE EVIDENT. UPON REMOVAL OF THE AIR SPRING AND INVERTING IT FOR A PERIOD OF APPROXIMATELY ONE MINUTE, HYDRAULIC FLUID IS FOUND TO FLOW FROM THE AIR SUSPENSION PIPE 'VOSS' CONNECTOR. CAUSE: THIS MAY BE CAUSED BY A LEAK FROM HYDRAULIC DAMPER CHAMBER OF THE AIR SPRING."
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Suspension, Air suspension
| LAND ROVER RANGE ROVER | 2013, 2014 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| LTB00604NAS4 | 2021-12-13. Service bulletin. Technical Bulletin: Front Air Spring Damper Hydraulic Fluid Leak |
|---|---|
| LTB00604NAS3 | 2021-12-13. Service bulletin. Technical Bulletin: Front Air Spring / Damper Hydraulic Fluid Leak 2013-14 Onwards |
| LTB00604NAS2 | 2021-12-13. Service bulletin. Technical Bulletin: Front Air Spring/Damper Hydraulic Fluid Leak 2013-2014 Onwards |
| LTB00604NAS1 | 2021-12-13. Service bulletin. Technical Bulletin: Front Air Spring/Damper Hydraulic Fluid Leak |
| LTB00604NAS5 | 2017-06-13. Service bulletin. "SITUATION: A 'KNOCK' SOUND FROM ONE OR BOTH FRONT AIR SPRINGS WHEN TRAVELING OVER SPEED BUMPS AT LOW SPEED MAY BE EVIDENT. UPON DIAGNOSIS, INCLUDING REMOVAL OF THE AIR SPRING AND INVERTING IT FOR A PERIOD OF APPROXIMATELY ONE MINUTE, HYDRAULIC FLUID IS FOUND TO FLOW FROM THE AIR SUSPENSION PIPE 'VOSS' CONNECTOR." |
| SSM72050 | 2017-06-06. Service bulletin. "ISSUE: FOLLOWING REPLACEMENT OF FRONT AIR STRUTS (FOR EXAMPLE PERFORMING LTB604V3/SSM71942) DEALERS / CUSTOMER MAY REPORT A NOISE OR A VEHICLE LEAN ERROR STATE. ON INVESTIGATION THE FRONT AIR SPRING IS FOUND TO BE MISALIGNED AND DAMAGED. SEE ATTACHED PHOTO CAUSE(S): INFLATION OF AIR SUSPENSION AIR SPRINGS WITH THE VEHICLE ON THE GROUND (NOT ON A WHEEL FREE LIFT) CAN CAUSE MISALIGNMENT AND CREASING OF THE AIR BAG. THE INFLATION PRESSURES ACTING ON THE CREASED AIR BAG CAN CAUSE PERMANENT DAMAGE." |
| SSM72050 | 2017-06-02. Service bulletin. "ISSUE: FOLLOWING REPLACEMENT OF FRONT AIR STRUTS (FOR EXAMPLE PERFORMING LTB604V3/SSM71942) DEALERS / CUSTOMER MAY REPORT A NOISE OR A VEHICLE LEAN ERROR STATE. ON INVESTIGATION THE FRONT AIR SPRING IS FOUND TO BE MISALIGNED AND DAMAGED. SEE ATTACHED PHOTO CAUSE(S): INFLATION OF AIR SUSPENSION AIR SPRINGS WITH THE VEHICLE ON THE GROUND (NOT ON A WHEEL FREE LIFT) CAN CAUSE MISALIGNMENT AND CREASING OF THE AIR BAG. THE INFLATION PRESSURES ACTING ON THE CREASED AIR BAG CAN CAUSE PERMANENT DAMAGE" |
| LTB00604NAS4 | 2017-06-01. Service bulletin. "SITUATION: A 'KNOCK' SOUND FROM ONE OR BOTH FRONT AIR SPRINGS WHEN TRAVELING OVER SPEED BUMPS AT LOW SPEED MAY BE EVIDENT. UPON REMOVAL OF THE AIR SPRING AND INVERTING IT FOR A PERIOD OF APPROXIMATELY ONE MINUTE, HYDRAULIC FLUID IS FOUND TO FLOW FROM THE AIR SUSPENSION PIPE 'VOSS' CONNECTOR. CAUSE: THIS MAY BE CAUSED BY A LEAK FROM THE HYDRAULIC DAMPER CHAMBER OF THE AIR SPRING." |
| LTB00604NAS3 | 2017-05-31. Service bulletin. "SITUATION: A 'KNOCK' SOUND FROM ONE OR BOTH FRONT AIR SPRINGS WHEN TRAVELING OVER SPEED BUMPS AT LOW SPEED MAY BE EVIDENT. UPON REMOVAL OF THE AIR SPRING AND INVERTING IT FOR A PERIOD OF APPROXIMATELY ONE MINUTE, HYDRAULIC FLUID IS FOUND TO FLOW FROM THE AIR SUSPENSION PIPE 'VOSS' CONNECTOR. CAUSE: THIS MAY BE CAUSED BY A LEAK FROM HYDRAULIC DAMPER CHAMBER OF THE AIR SPRING." |
| SSM55817 | 2017-05-31. Service bulletin. "RE-ISSUED FEBRUARY 2014. ISSUE: ENGINEERING INVESTIGATION TO FRONT AIR SPRING FAILURES CAUSE: UNKNOWN AT THIS TIME" |