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.
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HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 6 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING)RELAYS & SOLENOIDSRELAYS
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
Relays & Solenoids: Relays
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Relays
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1999 BMW Z3, 1999 BMW M3, 1999 BMW M Roadster, 1999 BMW M Coupe, and 1999 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
For fuel pump relay, see FUEL DELIVERY under FUEL SYSTEM. For relay locations, see DME & FUEL PUMP RELAY LOCATION table. See Fig 1-Fig 4 .
DME & FUEL PUMP RELAY LOCATION
| Application | Location | ||
|---|---|---|---|
| 3-Series | |||
| Z3 | |||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME PCM | ||
| Fuel Pump Relay | Under Left Side Of Instrument Panel, Next To Kick Panel | ||
| E36 (Except Z3) | |||
| DME & Fuel Pump Relays | Left Rear Corner Of Engine Compartment, In Relay Box | ||
| E46 | |||
| DME Relay | Left Rear Corner Of Engine Compartment, In Relay/PCM Box | ||
| Fuel Pump Relay | Behind Glove Box | ||
| 5-Series & 7-Series | |||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME PCM | ||
| Fuel Pump Relay | Right Side Of Trunk | ||
| 8-Series | |||
| DME & Fuel Pump Relays | Right Rear Corner Of Engine Compartment, Next To DME PCM | ||
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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.