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RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit
  • RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit
  • RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit
  • RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit

RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit

Place of Origin China
Brand Name FHD
Certification ISO 9001
Model Number Land Rover Discovery 2
Product Details
Bracket:
None
Purpose:
Replace/ Repair
Part:
Air Compressor
Structure:
Single Bare Pump
Dryer:
Integrated Maintenance-Free Air Dryer
Protection Feature:
Thermal Overload Protection
Highlight: 

Land Rover Discovery 2 air compressor

,

Wabco suspension compressor unit

,

L318 automotive air compressor

Payment & Shipping Terms
Minimum Order Quantity
1 pc
Price
Negotiable
Packaging Details
Carton
Delivery Time
3-15days
Payment Terms
D/A,D/P,T/T,Western Union
Supply Ability
5000 Sets/month
Product Description
RQG100041 Land Rover Discovery 2 L318 Wabco Suspension Compressor Unit
Product Introduction

The RQG100041 air suspension compressor is an OEM-spec replacement part specifically designed for the 1998-2004 Land Rover Discovery 2 (chassis code L318). Manufactured by Wabco, this compressor is the core component of the Discovery 2's Electronic Air Suspension system (SLS - Self-Levelling Suspension). Its primary function is to supply compressed air to the rear axle air springs, enabling automatic rear ride height adjustment and self-levelling, ensuring stable vehicle attitude under heavy loads or towing conditions.

The rear air suspension system on the Discovery 2 is semi-active in design. The compressor operates automatically based on signals from ride height sensors - actively inflating when rear axle load increases to maintain height, and releasing air when load decreases to lower the vehicle. This is a brand new complete pump unit, supplied with the necessary dryer and relay for installation, effectively resolving issues such as rear-end sagging, abnormal ride height, and suspension fault warnings on the dashboard caused by compressor aging.

Technical Specifications
Parameter Specification
Product Name Air Suspension Compressor Unit
OE Number RQG100041
Brand Wabco
Vehicle Application Land Rover Discovery 2 L318 (1998-2004)
Application Position Rear axle air suspension system
Voltage 12V
Maximum Pressure Approx. 150 PSI
Included Components Compressor unit, dryer, relay, bracket, connecting hoses
Vehicle Applications

This product is compatible with the following Land Rover Discovery 2 (L318) models:

  • Land Rover Discovery 2 - 1998 to 2004 model years (including Series I and Series II facelift)
  • Chassis code: L318
  • Engine types: 2.5L Td5 Turbo Diesel, 4.0L V8 Petrol
  • Vehicle configurations: Station wagon and 7-seat variants equipped with rear air suspension (SLS system)
⚠️ Important Note: The Discovery 2 rear suspension is available in two configurations: coil spring version and air suspension version. This product is ONLY suitable for vehicles equipped with rear air suspension (SLS system). It is NOT compatible with coil spring versions. Please verify that your vehicle is equipped with an air compressor (typically located behind the right rear wheel arch liner) before purchase.
Replacement OE Numbers

This product is a direct replacement for the following OEM part numbers:

RQG100041, RQG100040, RQG500040, RQG100031, RQG100030, RTC6794, RTC6793, ANR3731, STC4902

Product Features
  • OEM Quality, Manufactured by Wabco: Produced by Wabco, the original equipment supplier for the Land Rover Discovery 2 rear suspension compressor, delivering quality identical to factory-installed units.
  • Direct Replacement, Easy Installation: Complete unit design with bracket, dryer, and relay included - direct fit with no additional modifications required.
  • Specifically Designed for Rear Self-Levelling: Optimized for the Discovery 2 SLS system, automatically detecting rear axle load changes and adjusting air pressure to keep the vehicle level under any load, improving towing stability and driving safety.
  • Integrated Dryer: The built-in dryer effectively absorbs moisture from compressed air, preventing internal system icing and corrosion, extending the service life of the entire suspension system.
  • Built-in Overheat Protection: Equipped with a thermal overload protection device to prevent damage from prolonged operation, enhancing durability.
Warehouse & Workshop

Keep dry, clean and handle with care.

Land Rover air suspension compressor pump warehouse storage and handling
Global Exhibitions

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Global exhibitions showcasing Land Rover air suspension components
Frequently Asked Questions
Q1: How do I know if my Discovery 2 needs a new air suspension compressor?
A: Common symptoms include: noticeable rear-end sagging or leaning to one side; inability to automatically adjust rear ride height while driving; abnormal compressor noise or continuous running; "SUSPENSION FAULT" warning on the dashboard or rear height warning light illumination; severe rear-end sinking under heavy loads with inability to recover height. If any of these occur, it is recommended to inspect the compressor and dryer condition as soon as possible. Note that rear sagging may also be caused by air spring leaks - it is advisable to perform a soapy water leak test on the air springs first.
Q2: How do I confirm whether my Discovery 2 has air suspension or coil springs?
A: The most straightforward method is to check whether there is an air compressor and reservoir tank behind the right rear wheel arch liner (typically near the right rear tail light area). Additionally, vehicles with air suspension use rubber air bags instead of coil springs on both sides of the rear axle, which can be observed directly at the rear wheels. If your vehicle is a coil spring version, this product is NOT compatible.
Q3: What should I pay attention to when installing the RQG100041 compressor?
A: Pay special attention to the following three points: First, the dryer must be replaced at the same time (this unit is supplied with one) - the old dryer may have become saturated with moisture, which will shorten the new compressor's lifespan if not replaced; Second, be sure to disconnect the vehicle's battery negative terminal and release residual air pressure from the system before installation to ensure safety; Third, after installation, start the vehicle and observe whether the rear axle rises properly and remains level. It is recommended to use a professional diagnostic tool to clear fault codes and perform a system inflation test. Professional installation by a technician with Land Rover service experience is recommended.

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