# Service bulletin LTB00604NAS3

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: 10101423
- Published by NHTSA: 2017\-05\-31
- Manufacturer's number: LTB00604NAS3
- Manufacturer's date: 2014\-03\-04
- NHTSA component: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:REAR: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

## Vehicles listed

- 2013 to 2014 LAND ROVER RANGE ROVER
- 2014 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [SSM71849](/bulletins/10239285.md), 2023-07-17, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION; SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. A customer may complain that either "Vehicle Raising In Progress" or "Suspension Will Rise When System Is Cooled" messages can be seen. Fault codes U210A \- 16 and C1A24 \- 67 may also be stored.
- [LTB00604NAS4](/bulletins/10204768.md), 2021-12-13, Service bulletin: UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:FLUID; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. Technical Bulletin: Front Air Spring Damper Hydraulic Fluid Leak
- [LTB00604NAS3](/bulletins/10204767.md), 2021-12-13, Service bulletin: UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:FLUID; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. Technical Bulletin: Front Air Spring / Damper Hydraulic Fluid Leak 2013\-14 Onwards
- [LTB00604NAS2](/bulletins/10204766.md), 2021-12-13, Service bulletin: UNKNOWN OR OTHER; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SERVICE BRAKES, HYDRAULIC:FLUID. Technical Bulletin: Front Air Spring/Damper Hydraulic Fluid Leak 2013\-2014 Onwards
- [LTB00604NAS1](/bulletins/10204765.md), 2021-12-13, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; UNKNOWN OR OTHER. Technical Bulletin: Front Air Spring/Damper Hydraulic Fluid Leak
- [LTB00604NAS5](/bulletins/10106202.md), 2017-06-13, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. "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."
- [LTB00793NAS2](/bulletins/10105682.md), 2017-06-08, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. SITUATION: THE AIR SUSPENSION SYSTEM MAY NOT RAISE/LOWER WITH A WARNING DISPLAYED ON THE INSTRUMENT CLUSTER AND DIAGNOSTIC TROUBLE CODE \(DTC\) C1A13\-64 MAY BE STORED.
- [SSM72050](/bulletins/10104641.md), 2017-06-06, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:SPRINGS/BAGS. "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."
- [SSM45144](/bulletins/10103461.md), 2017-06-06, Service bulletin: SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM:SPRINGS/BAGS; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:SPRINGS/BAGS. "ISSUE: A CUSTOMER MAY REPORT SUSPENSION LOW ON ONE SIDE OR DROPPING WHEN LEFT PARKED. CAUSE: AIR LEAK FROM A FRONT OR REAR AIR SPRING TO DAMPER LOWER SEAL."
- [SSM72050](/bulletins/10102802.md), 2017-06-02, Service bulletin: SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:SPRINGS/BAGS. "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"

JSON: [/v1/bulletins/10101423](/v1/bulletins/10101423)

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