Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Tesla Model 3 BaseFACTORY OEM SERVICE PROCEDURE
High Voltage Battery System -- Model 3
- HV Battery Assembly
- HV Battery Enclosure
- Bracket - Skid Plate - Front - HV Battery - Remove and Replace
- Breathers (HV Battery) - Remove and Replace
- Cover - HV Probe (HV Battery) - Remove and Replace
- Cover - Ancillary Bay - Remove and Replace
- Flood Ports - 2nd Generation - Remove and Replace
- Flood Ports - 2nd Generation - Retrofit
- Seal - Perimeter (HV Battery) - Remove and Replace
- HV Battery Air Leak Test
- NVH Pads (HV Battery) - Install
- Penthouse Air Leak Test
- Platter Enclosure Air Leak Test
- Ski - Center Rail - (HV Battery (RWD)) - Remove and Replace
- Ski - Center Rail - (HV Battery (Dual Motor)) - Remove and Replace
- Skid Plate (HV Battery) - Front - Remove and Replace
- Skid Plate (HV Battery) - Rear - Remove and Replace
- Vent Assembly (HV Battery) - LH - Remove and Replace
- Vent Assembly (HV Battery) - RH - Remove and Replace
- Vent Assembly (HV Battery) - Pair - Remove and Replace
- HV Battery Cooling System
- Coolant (HV Battery) - Drain and Refill
- Penthouse Coolant - Drain and Refill
- Penthouse Coolant Leak Test
- Platter Enclosure Coolant - Drain and Refill
- Platter Enclosure Coolant Leak Test
- Tube - Input - Coolant (Power Conversion System) - Remove and Replace
- Tube - Output - Coolant (Power Conversion System) - Remove and Replace
- HV Battery Electrical Components
- Busbar DC Input to Harness DC Input - Retrofit
- Contactor - Fast Charge (HV Battery) - Remove and Replace
- Contactor - Negative (HV Battery) - Remove and Replace
- Contactor - Positive (HV Battery) - Remove and Replace
- Controller - High Voltage - Backup and Restore
- Controller - High Voltage - Remove and Install
- Controller - High Voltage - Remove and Replace
- DC Input Assembly - (HV Battery (Busbar Type)) - Remove and Replace
- DC Input Assembly - (HV Battery (Harness Type)) - Remove and Replace
- Fuse - A/C Compressor (HV Battery) - Remove and Replace
- Fuse - Cabin Heater (HV Battery) - Remove and Replace
- Fuse - Cabin Heater - (HV Battery (Battery On Table)) - Install
- Fuse - Power Conversion System (HV Battery) - Remove and Replace
- Guide - Probing (HV Battery) - Remove and Replace
- Guide - Probing (HV Battery) - Retrofit
- Harness - AC Inlet (HV Battery) - Remove and Replace
- Harness - Penthouse (HV Battery) - Remove and Replace
- HV Battery Contactor Seize Check
- HV Header - PTC Heater and A/C Compressor (HV Battery) - Remove and Replace
- HV Header - Rear Drive Unit (HV Battery) - Remove and Replace
- Insulators (HV Battery) - Install
- Passthrough - DCDC - 12V (Busbar Type) - Remove and Replace
- Passthrough - DCDC - 12V (Cable Type) - Remove and Replace
- Power Conversion System - Remove and Replace
- Pyrotechnic Battery Disconnect - Remove and Replace
- Resistance Meter (Zero Adjust)
- Seal - Probe Lid (HV Battery) - Remove and Replace
- Shunt (HV Battery) - Remove and Replace
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.