Rear Air Spring Module - DM for Tesla Model S (2016-2021) | 1067461-25-C

The Evolution of Dual Motor Rear Suspension

Why 2016-2021 DM Models Demand This Module

• Torque-Adaptive Damping: Later DM models deliver up to 532 lb-ft of torque, creating intense rear-end forces during acceleration. The module’s hydraulic core uses a variable-orifice valve that stiffens in 0.3 seconds to counteract "squat," keeping the rear level and tires gripping hard—no more wheel spin or instability.
• Weight-Sensing Precision: With the battery pack repositioned in 2016 models, rear weight distribution shifted by 8%. This module’s pressure sensor (50% more sensitive than 2012-2015 versions) adjusts air volume to match, maintaining perfect ride height even with uneven cargo (like a suitcase on one side and a cooler on the other).
• Quiet-Operation Design: A new foam-cushioned air bladder reduces "whooshing" sounds during inflation—critical for later Model S cabins, which Tesla made quieter with improved sound deadening. Passengers won’t hear the suspension working, just enjoy the smooth ride.

Built for the Toughest Demands of Newer DM Models

• Next-Gen Bladder Technology: The air spring uses 6-ply aramid-reinforced rubber (same material as bulletproof vests), handling 30,000+ inflation cycles—20% more than earlier modules. It resists ozone degradation (a common issue in 2016+ models with tighter wheel wells) and stands up to -40°F to 180°F temperatures.
• Lightweight Aluminum Casing: Sheds 1.2 lbs compared to 2012-2015 steel housings, reducing unsprung weight for sharper handling. The aluminum is hard-anodized to resist corrosion, even in regions with heavy road salt.
• Integrated Health Monitoring: A new sensor feeds real-time data to your Model S’s computer, flagging potential issues (like slow leaks) before they trigger a warning light. This proactive system helps avoid sudden suspension failure on the road.

Signs Your 2016-2021 DM Model Needs This Module

• Rear-End Instability: During hard acceleration, the rear dips noticeably, causing the steering to feel "light." This means the module can’t counteract torque-induced squat.
• Uneven Tire Wear: Rear tires show "feathering" on the inner edges—a result of the module failing to maintain proper camber angles under load.
• Intermittent Warning Lights: A "Rear Suspension Degraded" alert that comes and goes (especially in cold weather) points to a bladder losing elasticity or a valve struggling with temperature changes.
• Noisy Adjustments: A loud "hiss" when raising/lowering the rear (common in worn 2016+ modules) means the bladder seal is failing—ignoring it will burn out the air pump.

Installation: Perfect Fit for Later DM Models

• 2016+ Exclusive Design: The mounting bracket matches the revised rear subframe of 2016-2021 DM models, with a 5-bolt pattern (instead of 4) for extra stability. The electrical connector is also updated to work with the newer suspension control module—no adapters needed.
• Advanced Calibration: Requires Tesla’s latest diagnostic software (version 10.0+) to run a "DM Gen 2 rear calibration," which syncs the module with the car’s torque management system. This ensures proper response during high-power acceleration.
• Pro Tip: Pair with new air lines. 2016+ models use softer rubber lines that harden over time—replacing them prevents pressure loss and ensures the module performs at its best.

For 2016-2021 DM Owners Who Refuse Compromise

Company Profile

       Guangzhou Fuheng Auto Parts Supply Chain Co., Ltd., located in the Guangzhou auto parts business district, adheres to the business philosophy of "quality first, pragmatic innovation, service-oriented, and co creation and win-win", and has established the independent brand "CheFuning". The Che Funing brand regards human resources as the foundation of the enterprise and attaches great importance to the construction of the talent team; The Che Funing brand regards product quality as the life of the enterprise, and every single product from screws to accident parts is carefully selected.

 The CheFuning brand helps partners transform from traditional fuel vehicles to new energy vehicle models, expands from a single horizontal vulnerable parts operation to a new energy full vehicle parts channel enterprise, upgrades from regional chain stores to independent brands of new energy full vehicle series, standardizes the operation of independent brands in the new energy industry, and integrates resources to reduce costs and increase efficiency, occupying the commanding heights of enterprise management.