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 | |||
| Crankshaft Position Sensors No. 1 & 2 | Under Center Of Vehicle, On Transmission | ||
| Dual Temperature Switch | On Front Of Engine | ||
| Heated Oxygen Sensor No. 1 In Front Of Catalytic Converter | Under Right Center Of Vehicle | ||
| Heated Oxygen Sensor No. 2 In Front Of Catalytic Converter | Under Left Center Of Vehicle | ||
| Heated Oxygen Sensor No. 1 Behind Catalytic Converter | Under Center Of Car | ||
| Heated Oxygen Sensor No. 2 Behind Catalytic Converter | Under Center Of Car | ||
| Knock Sensors | Top Center Of Engine | ||
| Mass Airflow Sensor | On Left Side Of Engine, In Air Intake | ||