why does my Tesla Model S have a rough idle when cold starting

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface.
• Connect the vehicle to a charger to maintain battery levels during diagnostics.
• Gather necessary tools such as a diagnostic scanner and a multimeter.

2. Update Software

• Access the vehicle's settings through the touchscreen.
• Navigate to the software update section and check for available updates.
• If updates are present, follow the prompts to install them.
• Restart the vehicle after the update is complete.

3. Battery Conditioning

• Precondition the battery by setting the vehicle to warm up before driving in colder temperatures.
• Use the mobile app to initiate battery preconditioning while plugged in.
• Ensure the vehicle is set to charge during off-peak hours to maximize battery health.

4. Inspect and Replace Components (if necessary)

• If diagnostics reveal issues with battery cells, inspect individual modules for damage or degradation.
• Replace any faulty battery modules, ensuring to follow the manufacturer's torque specifications and safety protocols.
• Check and replace any worn motor mounts if they are contributing to the rough idle and vibrations.