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.
2002 BMW M5FACTORY OEM SERVICE PROCEDURE
Relays & Solenoids: Relays
For fuel pump relay, see FUEL DELIVERY under FUEL SYSTEM. For relay location or location of relay box, see RELAY LOCATION table. See Fig 1-Fig 26 .
RELAY LOCATION
| Application | Location | |
|---|---|---|
| X5 | ||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME | |
| Fuel Pump Relay | Behind Glovebox | |
| Z4 | ||
| Relay/Electronics Box | Left Rear Corner Of Engine Compartment | |
| Fuel Pump Relay | Behind Glovebox | |
| Z8 | ||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME | |
| Fuel Pump Relay | In Right Rear Of Storage Compartment | |
| 3-Series (Z3) | ||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME | |
| Fuel Pump Relay | Under Left Side Of Instrument Panel, Next To Kick Panel | |
| 3-Series (E46) | ||
| DME Relay | Left Rear Corner Of Engine Compartment, In Relay/DME Box | |
| Fuel Pump Relay | Behind Glove Box | |
| 5-Series | ||
| DME Relay | Right Rear Corner Of Engine Compartment, Next To DME | |
| Fuel Pump Relay | Behind Glove Box, Behind Fuse Box | |
| 7-Series | ||
| Relay/Electronics Box | In Engine Compartment. | |
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.