Install Rear Lower Control Arm on Tesla Model S & X

By Tesla Accessories | Published: 2026-10-20

Category: How-to Guides

Step-by-step guide to replacing the rear lower control arm on a Tesla Model S (2012-01/2021) and Model X (2015-2021). Includes tools, torque specs, and common mistakes.

Quick answer

Replace a worn rear lower control arm on your Tesla Model S or X by raising the vehicle, removing the wheel and old arm, installing the new arm with fresh hardware, and torquing all fasteners to spec.

When to replace the rear lower control arm

A clunking or knocking noise from the rear suspension, especially over bumps, often points to a worn control arm bushing. On the Tesla Model S (2012-2021) and Model X (2015-2021), the rear lower control arm is a common wear item. Replacing the complete arm with a pre-pressed bushing restores ride quality and alignment stability.

Tools and parts you will need

You will need a floor jack, jack stands, lug wrench, 18mm and 21mm sockets, a torque wrench (capable of 120+ ft-lbs), penetrating oil, and a pry bar. The replacement arm should include new hardware (bolts and nuts). A replacement like the EVANNEX Rear Lower Control Arm for Tesla Model S/X is a direct fit and includes the bushing already pressed in.

Step-by-step installation

Step 1: Raise and secure the vehicle: Park on level ground, loosen the rear lug nuts, then jack up the rear of the car and place jack stands under the designated lift points. Remove the wheel. Common mistake: Relying only on the jack. Always use jack stands rated for the vehicle weight.
Step 2: Remove the old control arm: Spray the bolts with penetrating oil. Use an 18mm socket to remove the inner bolt (chassis side) and a 21mm socket for the outer bolt (knuckle side). Note the order of washers. Pry the arm free from the knuckle if stuck. Checkpoint: Mark the bolt positions before removal to simplify reassembly.
Step 3: Install the new control arm: Position the new arm in place. Hand-tighten the inner bolt first, then the outer bolt. Do not torque yet. Ensure the arm sits flat against the mounting points. Common mistake: Over-tightening before the arm is aligned, which can bind the bushing.
Step 4: Torque bolts to spec: With the suspension loaded (car on the ground or on ramps), torque the inner bolt to 85-95 ft-lbs and the outer bolt to 120-130 ft-lbs. Recheck after a short test drive. Checkpoint: Torque with the suspension under load prevents premature bushing wear.
Step 5: Reinstall the wheel and test: Mount the wheel, tighten lug nuts in a star pattern to 129 ft-lbs. Lower the car. Drive gently and listen for any remaining noise. Schedule an alignment check. Common mistake: Skipping the alignment; a new arm can alter toe angle.

Product facts

Rear Lower Control Arm for Tesla Model S (2012-01/2021) Model X (2015-2021): High quality replacement arm from OE supplier; total replacement control arm with bushing. You get a complete assembly that bolts in without pressing bushings, saving time and ensuring proper fit on both Model S and X.
Rear Lower Control Arm for Tesla Model S (2012-01/2021) Model X (2015-2021)