Description
Engineered specifically for BMW’s advanced TwinPower Turbo gasoline and diesel engine platforms (including N20, N55, B48, B58, N47, and B47 series), this Bosch Manifold Absolute Pressure (MAP) / Boost Pressure Sensor delivers real-time, highly accurate pressure metering directly to the Digital Motor Electronics (DME/DDE). Utilizing state-of-the-art MEMS piezoresistive technology, it precisely monitors micro-level pressure changes inside the intake manifold and charge-pipe system to optimize turbocharger wastegate control, air-fuel ratio, and ignition timing. Built to rigorous Original Equipment (OE) standards, it features exceptional resistance to oil contamination, vibration, and thermal stress. This sensor eliminates boost lag, power cutouts under acceleration, erratic idling, and driveability faults, making it a critical replacement component for European auto parts importers, wholesale distributors, and BMW repair specialists worldwide.
Technical Parameters
| Category | Specifications & Technical Details |
| Absolute & Boost Pressure Range (Pmin → Pmax) | Specification: 20 kPa to 300 kPa (or 50 kPa to 400 kPa, depending on TwinPower Turbo high-boost models and M Performance series) Technical Analysis: Precisely covers full operating condition monitoring from deep vacuum idle to twin-scroll peak boost pressure. Withstands transient overpressure surges, ensuring the pressure signal does not saturate under high-load conditions. |
| Signal Output Voltage & Sensing Accuracy | Specification: 0.5V to 4.5V DC proportional analog voltage output (or LIN bus digital output), full-scale comprehensive measurement accuracy error ≤ ±1.0% FS Technical Analysis: Features extremely high linearity and ultra-low zero-point drift, ensuring the BMW DME engine control unit accurately acquires real-time cylinder charge data for millisecond-level fine-tuning of fuel injection and air-fuel ratio. |
| Dynamic Response Time (τ0.9) | Specification: Ultra-fast response ≤ 1.5 ms Technical Analysis: Based on a high-sensitivity MEMS silicon piezoresistive micro-diaphragm, it instantly captures sudden pressure changes during hard acceleration or electronic wastegate actuation, completely eliminating turbo lag and sluggish power response. |
| Integrated Temperature Sensor & Compensation | Specification: Automatic bidirectional pressure and temperature compensation, built-in NTC thermistor (Intake Air Temperature sensor IAT, 2.2kΩ @ 25°C), operating temperature range -40°C to +130°C Technical Analysis: Simultaneously measures pressure and temperature at the same point in the charge pipe, enabling the DME to automatically correct physical changes in air density after intercooler cooling, improving engine thermal efficiency. |
| Operating Voltage & Environmental Durability | Specification: 5.0V DC ± 0.25V standard supply voltage, quiescent operating current < 10 mA; integrated reverse polarity protection, overvoltage protection, compliant with ISO 7637 EMC standards, dust and water ingress protection rating IP67 / IP69K Technical Analysis: The piezoresistive chip surface is coated with a special anti-condensation and anti-oil-vapor gel protection coating, preventing oil vapor and carbon deposits from the positive crankcase ventilation (PCV) system from corroding the sensing diaphragm, extending component service life. |
Applicable Car Brands & Models
Common warning indicators include significant boost lag, loss of acceleration power, “Drivetrain: Continue Moderately” warning on the iDrive system, engine hesitation or stuttering under load, poor fuel economy, and an illuminated Check Engine Light (CEL) with fault codes such as P0234 (Overboost Condition), P0236, P0106, or 120308 (BMW specific boost pressure too low).
Yes, Bosch is a primary Original Equipment Manufacturer (OEM) for BMW. Bosch MAP and boost pressure sensors are manufactured strictly according to BMW factory physical dimensions, voltage-to-pressure calibration curves, and terminal layouts, providing 100% direct plug-and-play fitment without modification.
Modern turbocharged BMW engines often utilize two pressure sensors: one is the Manifold Absolute Pressure (MAP) sensor located directly on the intake manifold (after the throttle body), and the other is the Charge Pipe / Boost Pressure Sensor located on the intake pipe before the throttle body (after the intercooler).
The Minimum Order Quantity (MOQ) depends on current warehouse inventory. For high-demand Bosch SKUs in stock, the MOQ starts as low as 10–20 units. Lead times typically range from 3–5 business days for stock items to 15–30 days for bulk factory orders.
