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.
61 13... Unlocking and disconnecting various plug connections in hybrid vehicles
Attention!
Observe the following instructions for handling high-voltage plug connections:
- Damaged high-voltage plug connections must be replaced completely. Repair is not permitted.
- Dirt contamination must be removed before opening the plug connection.
High-voltage connector on electric A/C compressor (EKK) and electrical machine electronics (EME):
Attention!
Connector (2) is difficult to pull off.
In the event of damage to high-voltage connector (2), the complete high-voltage cable must be replaced!
Press lock (1) on left and right of connector up to limit position in direction of arrow and then pull off connector (2) in direction of arrow.
Installation note:
Connector (2) must lock audibly.
High-voltage connector on high-voltage battery unit, power electronics and convenience system charging electronics:
Attention!
Plug connection (3) is difficult to pull off.
Connector must be completely pulled off opposite housing in one go. Damage may be caused to contact protection if connector is only partly pulled off and then closed again!
Unlock and disconnect high-voltage interlock loop (1).
Pull locks (2) of plug connection (3) up to limit position in direction of arrow.
Raise plug connection (3) and pull off completely.
Installation note:
Installation of plug connection (3) is performed by guiding down up to end position.
Plug connection (3) must be correctly locked by lock (2), otherwise there is a risk of damage.
Installation note:
If contact protection (1) is slide to the bottom (2), high-voltage connector must be refitted.
If contact protection (1) remains in bottom position (2) after reinstallation, the contact protection is faulty and the component must be replaced!
Attention!
Do not touch unprotected connector (2)!
NO RELATED
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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.