Engine Sensors & Switches: Sensors
For sensor and switch location, see ENGINE SENSORS & SWITCHES table.
ENGINE SENSORS & SWITCHES
| Application | Location | ||||
|---|---|---|---|---|---|
| 6-Cylinder (Z3) | |||||
| Camshaft Position Sensor | On Front Of Engine | ||||
| Coolant Temperature Sensor | On Front Of Engine | ||||
| Crankshaft Position Sensor | |||||
| "M" Version | Rear Left Side Of Engine Compartment | ||||
| Z3 Version | On Front Of Engine | ||||
| Dual Temperature Sensor (Coolant Temperature) | In Rear Of Engine Compartment | ||||
| Evaporator Temperature Sensor | On Right Side Of Left Footwell | ||||
| Hot Film Air Mass Meter | Left Side Of Engine Compartment | ||||
| Intake Air Temperature Sensor | |||||
| "M" Version | Front Left Side Of Engine Compartment | ||||
| Z3 Version | Rear Left Side Of Engine Compartment | ||||
| Fuel Tank Pressure Sensor | Under Rear Storage Compartment | ||||
| Heated Oxygen Sensor No. 1 | Front Of Catalytic Converter | ||||
| Heated Oxygen Sensor No. 2 | Rear Of Catalytic Converter | ||||
| Knock Sensors | |||||
| "M" Version | On Left Side Of Engine | ||||
| Z3 Version | On Top Front Of Engine | ||||
| 6-Cylinder (Except Z3) | |||||
| Camshaft Position Sensor No. 1 | On Front Left Side Of Engine | ||||
| Camshaft Position Sensor No. 2 | On Front Right Of Engine | ||||
| Coolant Temperature Sensor | On Left Rear Side Of Engine, Under Exhaust Manifold | ||||
| Crankshaft Position Sensor | On Left Rear Side Of Engine, Under Exhaust Manifold | ||||
| Heated Oxygen Sensor No. 1 | On Right Side Of Engine | ||||
| Heated Oxygen Sensor No. 2 | On Lower Right Side Of Engine | ||||
| Hot Film Mass Airflow Sensor | |||||
| 3-Series | On Left Side Of Engine, In Air Intake | ||||
| 5-Series | Lower Right Side Of Engine Front | ||||
| Intake Air Temperature Sensor | Under Engine Cover, On Top Center Of Engine | ||||
| Knock Sensors | At Rear Of Engine Under Exhaust Manifold | ||||
| Oil Temperature Sensor | On Front Left Side Of Engine, Behind Oil Filter Housing | ||||
| RPM Sensor | |||||
| 3-Series | Under Driver's Seat Carpet | ||||
| 5-Series | Left Side Of Left Footwell, Under Carpet | ||||
| Transverse Acceleration Sensor | On Left Side Of Left Footwell | ||||
| V8 | |||||
| Crankshaft Position Sensor | On Right Side Of Transmission | ||||
| Heated Oxygen Sensor No. 1 In Front Of Catalytic Converter | Next To Left Side Of Transmission | ||||
| Heated Oxygen Sensor No. 2 In Front Of Catalytic Converter | Next To Right Side Of Transmission | ||||
| Heated Oxygen Sensor No. 1 Behind Catalytic Converter | In Center Of Exhaust System | ||||
| Heated Oxygen Sensor No. 2 Behind Catalytic Converter | In Center Of Exhaust System | ||||
| Hot Film Air Mass Meter | Lower Right Side Of Engine Front | ||||
| RPM Sensor | Left Side Of Left Footwell, Under Carpet | ||||
| V12 | (1) | ||||
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