The Ultimate Guide to Electric Vehicle Maintenance: A Masterclass for Polestar 4 Owners

Luca Romano (Restoration Specialist) Published: Jul 05, 2026
5 min read
The Ultimate Guide to Electric Vehicle Maintenance: A Masterclass for Polestar 4 Owners
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Table of Contents


The Diagnostic / The Situation

As a Polestar 4 owner, it’s essential to understand the importance of regular maintenance to ensure your vehicle runs smoothly and efficiently. Electric vehicles, in particular, require unique care and attention to their battery, electrical systems, and other components. In this guide, we’ll delve into the technical background of electric vehicle maintenance, highlighting symptoms and signs to look out for.

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Electric vehicles like the Polestar 4 rely on advanced technology, including regenerative braking, electric motors, and high-voltage batteries. Regular maintenance is crucial to prevent issues such as reduced battery life, decreased performance, and increased risk of electrical faults. Common symptoms to look out for include unusual noises, decreased range, or warning lights on the dashboard.

Technical Deep Dive

To understand how to maintain your Polestar 4, it’s essential to know how its systems work. The electric motor, powered by a high-voltage battery, drives the vehicle. The battery management system (BMS) monitors and controls the battery’s state of charge, voltage, and temperature. The regenerative braking system captures kinetic energy and converts it back into electrical energy, feeding it back into the battery.

Common failure points in electric vehicles include the battery cells, electric motor, and power electronics. The battery cells can degrade over time, reducing the vehicle’s range and overall performance. The electric motor can experience wear and tear, leading to decreased efficiency and increased risk of failure. Power electronics, such as the inverter and converter, can also fail due to overheating, overvoltage, or manufacturing defects.

Pre-Work Checklist

Before starting any maintenance work on your Polestar 4, it’s essential to consult the following checklist:

TaskDifficultyTimeCostDIY vs Shop
Battery Maintenance2/51 hour$0 - $100DIY
Tire Rotation1/530 minutes$0 - $50DIY
Brake Pad Replacement3/52 hours$200 - $500Shop
Software Updates1/530 minutes$0DIY

Tools Required

  • 10mm socket
  • Torque wrench
  • Tire pressure gauge
  • Multimeter
  • Computer with internet connection (for software updates)

Safety Warnings

When working with electric vehicles, it’s essential to take necessary safety precautions to avoid injury or damage to the vehicle. Always:

  • Wear protective gloves and safety glasses
  • Ensure the vehicle is in park and apply the parking brake
  • Disconnect the high-voltage battery before starting work
  • Avoid touching electrical components or wires

Step-by-Step Guide

Checking and Maintaining the Battery

Step 1: Check the Battery State of Charge

Use the vehicle’s dashboard display to check the battery’s state of charge. Ensure the battery is at least 20% charged before starting any maintenance work.

Step 2: Check the Battery Voltage

Use a multimeter to check the battery voltage. The recommended voltage range for the Polestar 4 battery is between 300V and 400V.

Step 3: Check the Battery Temperature

Use a thermometer to check the battery temperature. The recommended temperature range for the Polestar 4 battery is between 15°C and 35°C.

Rotating the Tires

Step 1: Loosen the Wheel Nuts

Before jacking up the vehicle, loosen the wheel nuts using a 10mm socket.

Step 2: Jack Up the Vehicle

Use a hydraulic jack to lift the vehicle, ensuring it’s stable and secure.

Step 3: Remove the Wheel

Remove the wheel and rotate it to the recommended position, as specified in the vehicle’s manual.

Updating the Software

Step 1: Connect to the Internet

Connect your computer to the internet and navigate to the Polestar website.

Step 2: Download the Software Update

Download the latest software update for your Polestar 4, following the on-screen instructions.

Step 3: Install the Software Update

Install the software update, ensuring the vehicle is in park and the parking brake is applied.

Pro Tips & Common Mistakes

When maintaining your Polestar 4, it’s essential to avoid common mistakes, such as:

  • Overcharging the battery, which can reduce its lifespan
  • Ignoring software updates, which can lead to decreased performance and increased risk of faults
  • Not checking the tire pressure regularly, which can reduce fuel efficiency and increase wear on the tires

Pro tips include:

  • Regularly cleaning the vehicle’s electrical components to prevent corrosion and damage
  • Using a tire pressure gauge to ensure accurate readings
  • Keeping the vehicle’s software up-to-date to ensure optimal performance and safety

Cost Analysis: DIY vs Mechanic

The cost of maintaining your Polestar 4 can vary depending on the task and whether you choose to DIY or visit a mechanic. The following breakdown estimates the costs involved:

  • Battery maintenance: $0 - $100 (DIY), $200 - $500 (mechanic)
  • Tire rotation: $0 - $50 (DIY), $100 - $200 (mechanic)
  • Brake pad replacement: $200 - $500 (DIY), $500 - $1,000 (mechanic)
  • Software updates: $0 (DIY), $0 (mechanic)

Frequently Asked Questions

  1. How often should I rotate my tires? It’s recommended to rotate your tires every 5,000 to 8,000 miles, depending on the vehicle’s manual and driving conditions.
  2. Can I update my Polestar 4’s software myself? Yes, you can update your Polestar 4’s software yourself using a computer and internet connection. However, it’s essential to follow the manufacturer’s instructions and ensure the vehicle is in park and the parking brake is applied.
  3. How do I check the battery state of charge? You can check the battery state of charge using the vehicle’s dashboard display or a multimeter.
  4. What is the recommended battery voltage range for the Polestar 4? The recommended battery voltage range for the Polestar 4 is between 300V and 400V.
  5. Can I use a standard tire pressure gauge to check my Polestar 4’s tire pressure? Yes, you can use a standard tire pressure gauge to check your Polestar 4’s tire pressure. However, it’s essential to ensure the gauge is accurate and calibrated correctly.

Reference: Technical analysis by Luca Romano (Restoration Specialist) based on reports from Motor1 News.

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