TRW Automotive AfterMarket GBS1118 ABS Sensor

TRW Automotive AfterMarket GBS1118 ABS Sensor

The TRW GBS1118 is a high‑performance ABS wheel speed sensor designed for the MG Rover 75 series, including the ZT and T models. It delivers precise wheel rotation data to the vehicle’s anti‑lock braking system, ensuring optimal stability during emergency stops.

Key Functionalities

• Accurate Wheel Speed Measurement: The sensor converts mechanical wheel motion into electrical signals with high fidelity, enabling the ABS control unit to calculate slip ratios accurately.
• Active Sensor Design: Unlike passive sensors, the GBS1118 actively generates a magnetic field that interacts with the rotating wheel’s toothed rim. This design improves signal quality and reduces susceptibility to interference.
• Wide Operating Temperature Range: Engineered for automotive environments, it operates reliably from –40 °C to +120 °C, accommodating extreme climates without performance loss.
• Robust Mechanical Construction: The sensor housing is made of high‑strength alloy and features a sealed design that protects against dust, moisture, and vibration.
• Compact Size & Low Profile: Its slim profile allows easy installation in tight wheel well spaces without requiring modifications to the vehicle’s suspension geometry.

The GBS1118 is specifically calibrated for the following MG Rover models:

• MG Rover 75 (including variants 75 I, 75 Sedan, 75 Tourer)
• MG ZT (standard and T versions)
• MG ZT‑T Kombi
• Rover 75 (RJ) and related chassis codes such as SSB000150 and SSB101192

It is compatible with both front left and front right wheel positions, providing symmetrical braking performance across the vehicle.

1. Remove Existing Sensor: Detach the old ABS sensor by loosening the mounting bolt and disconnecting the electrical connector. Carefully separate the sensor from the wheel hub without damaging the toothed rim.
2. Prepare New Sensor: Verify that the GBS1118’s magnetic field orientation matches the vehicle’s wheel assembly. Ensure the sensor’s contact points are clean.
3. Mounting: Align the new sensor with the wheel hub, secure it using the original mounting bolt, and torque to manufacturer specifications.
4. Electrical Connection: Plug the sensor connector into the vehicle’s ABS harness. Confirm a snug fit to avoid signal loss.
5. System Check: After installation, use an OBD‑II scanner or vehicle diagnostic tool to verify that the ABS module registers the new sensor and that no fault codes are present.

• Improved Braking Stability: By delivering precise wheel speed data, the GBS1118 enhances the ABS system’s ability to modulate brake pressure during skids, reducing stopping distances on slippery surfaces.
• Enhanced Reliability: The active sensor design reduces false readings caused by electrical noise or mechanical wear, leading to fewer diagnostic trouble codes (DTCs).
• Longevity: With its sealed construction and durable materials, the GBS1118 offers a long service life even in harsh operating conditions.

• Inspect the sensor connector for corrosion or loose pins during routine brake system checks.
• Clean the wheel rim’s toothed pattern periodically to ensure uninterrupted magnetic interaction.
• If the ABS warning light remains illuminated after replacement, re‑check the mounting torque and electrical connections.

The TRW GBS1118 ABS Sensor is a reliable, high‑quality component that restores or enhances the braking safety of MG Rover 75 series vehicles. Its active design, robust construction, and precise wheel speed measurement make it an essential upgrade for owners seeking optimal vehicle control during emergency stops.