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... Opening plug housings and removing contacts of different plug systems
Abbreviations and what they mean:
| Abbreviations | Definitions |
|---|---|
| MDK3 plus | Miniature double flat spring contact |
| JPT ELA | Junior Power Timer flat spring contacts with strand sealing |
| DFK ELA | Double flat spring contacts with strand sealing |
| Elo | Electronic contacts with and without strand sealing Manufacturer: Siemens |
| Elo | Power Electronic contacts for heavy loads with and without strand sealing Manufacturer: Siemens |
| MQS | Micro Quadlock System electronic contacts with and without strand sealing Manufacturer: AMP |
| MPQ | Micro Power Quadlock electronic contacts for heavy loads with and without strand sealing Manufacturer: AMP |
| D 1.5/2.5 | Round contacts of 1.5 mm or 2.5 mm diameter |
Ultrasonic-Welded Connectors:
Ultrasonic-welded connectors (1) can be identified by the welds (2) on their longitudinal side.
The contacts of these connectors cannot be replaced. Replace plug completely.
Release and press-out tool 61 1 150
Repair instructions for opening plug housings and removing contacts of different plug systems
Plug system D 1.5/D 2.5:
- Circularplugs, 7- S-pin System D 7 S
- Circular plugs, 13-pin, System D 2.5
- Circular plugs, 20-pin, System D 2.5
- Circular plugs, 4-, 7-, 10-, 12-, 25 -pin, System D 1.5/D 2.5
- In-line plugs, 15-pin, System D 2.5
- In-line plugs, 8-, 12-pin, System D 2. 5
- In-line plugs, 30-pin, System D 2.5
- In-line plugs, 20-pin, System D 2.5
Plug system JPT/MDK/DFK:
- In-line plugs, 2-pin, System JPTELA
- In-line plugs, 2-pin, System MDK 3 plus 2.8
- In-line plugs, 4-pin, System DFK ELA
Plug system Elo/Elo-Power:
- In-line plugs, 4-, 10-pin, System Elo
- In-line plugs, 6- to 50-pin, System Elo
- In-line plugs, 3-, 6-pin, System Elo-Power 2.8
Plug system MQS/MPQ:
- In-line plugs, 6-, 8-pin, System MQS
- In-line plugs, 2-pin, System MPQ 2.8
- Control unit plugs, 25 -, 35-, 55-, 83 -, 88-pin
- In-line plugs, 24-pin, Hybrid System MQS/MPQ
- Socket housing 42-, 43-pin, Hybrid System MQS /MPQ
- Socket housings, 2x21-, 2x27-pin, Hybrid System MQS/MPQ, Elo/Elo-Power
- In-line plugs, 30-pin, Hybrid System MQS/MPQ
- Socket housings, 5- S-pin System MQS/MPQ
- Socket housing (radio plug), Hybrid System MQS/MPQ
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.