Enyaq APP310 Drive unit milling repair operation manual #20250831714213

• Therma degraded oil
• Normal tear&wear
• Missing oil inside diff 1 speed gearbox

Milling and buzzing sound from electric motor

• 0EH901098C,
• 1EA907121C,
• Engine code EBJ

• Workshop lift
• Allen key 5,6,7,8,9.10
• Torx 5,6,7,8,9.10
• Fluke Voltmeter
• Repair eDrive kit - Replacement parts (Available at our shop)
• HV Gloves
• Hydraulic bench table - HV Battery
• Bearing extractor tool - Gedore
• Press tool
• Other mechanic set of tools

 Step 1:
Before performing any work on the Skoda high-voltage drive unit system, it is mandatory to prepare a controlled and safe working environment in accordance with high-voltage safety protocols. Lvl 3 HV Access license needed.

Read error codes with diagnostic tool and confirm you have same error codes and faults.

Secure the work area – The workspace must be clean, dry, clearly marked as an HV zone, and equipped with proper safety gear (HV gloves, face shield, insulating mat).

Disconnect the 12V system 

Perform safe high-voltage system shutdown – Using approved tools and following OEM procedures, disconnect the HV connectors and wait the required cool-down period for capacitor discharge.

Verify absence of voltage (Zero Voltage Verification) – Use an appropriate HV tester to ensure that no voltage is present in the system before proceeding

 First thing is to remove 12 V battery by disconnecting (-) terminal 

 Proceed with disconnecting HVIL for save work environment 

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