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 MANUALSBMW2010328I 2D CONVERTIBLE, N52, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORBUZZERS, RELAYS & TIMERS
2010 BMW 328i 2D Convertible, N52, Standard
Buzzers, Relays & Timers
2010 BMW 328i 2D Convertible, N52, StandardSECTION Buzzers, Relays & Timers
BUZZERS, RELAYS & TIMERS LOCATION
| Component | Location |
|---|---|
| A/C Compressor Relay (K19) | Near A/C compressor. |
| Auxiliary Direction Indicators Relay (K441) | Right side of rear compartment. See Figure. |
| Bistable Relay (Variant-Dependent) (I01139) | Right side of dash. See Figure. |
| Convertible Top 1 Relay (K18363) | On convertible top drive. See Figure. |
| Convertible Top 2 Relay (K18364) | On convertible top drive. See Figure. |
| Crankcase Ventilation Heater Relay (K6539) | Right plenum chamber E-box. See Figure. |
| DME Relay (K6300) | Right rear of engine compartment. See Figure. |
| Electric Fan Cutoff Relay (K9137) | Right plenum chamber E-box. See Figure. |
| Electric Vacuum Pump Relay (K213) | Right plenum chamber E-box. See Figure. |
| Engine Breather Heating Relay (K6539) | Right rear of engine compartment. See Figure. |
| Fuel Injectors Relay (K6327) | Right rear of engine compartment. See Figure. |
| Fuel Pump Relay (K96) | In junction box (A4010). See Figure. |
| Gun Mount Relay (K424) | Right side of rear compartment. See Figure. |
| Headlight Washer Relay (K6) | In junction box (A4010). See Figure. |
| Horn Relay (K2) | In junction box (A4010). See Figure. |
| Microswitch 4.1 (I01200) | Front of retractable hardtop. See Figure. |
| Microswitch 4.2 (I01201) | Front of retractable hardtop. See Figure. |
| Rear Window Defroster Relay (K13) | In junction box (A4010). See Figure. |
| Rear Wiper Relay (K91) | In junction box (A4010). See Figure. |
| Relay 1 For Hardtop Drive (K18363) | On hardtop drive unit. See Figure. |
| Relay 2 For Hardtop Drive (K18364) | On hardtop drive unit. See Figure. |
| SCR System Load Relay (K2085) | Right plenum chamber E-box. See Figure. |
| Secondary Air Pump Relay (K6304) | In junction box (A4010). See Figure. |
| Terminal 15 Relay (I01069) | In junction box (A4010). See Figure. |
| Terminal 30G Relay (I01068) | In junction box (A4010). See Figure. |
| Transceiver Relay (K411) | Right side of rear compartment. See Figure. |
| VVT Relay (K6319) | Right rear of engine compartment. See Figure. |
| Wiper Relay 1 (K36) | In junction box (A4010). See Figure. |
| Wiper Relay 2 (K37) | In junction box (A4010). See Figure. |
RENDER: 1.0x
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.