BMW 5 Series: Air intake and exhaust emission systems
Air intake duct
In contrast to the 4- and 6-cylinder gasoline engines, the 8-cylinder gasoline engine has a two-branch intake system. This ensures that the necessary air volume is made available to the engine in every load range.
Gasoline engine air intake duct in the G30
- B46 engine
- B58 Engine
- N63TU2 Engine
Resonator
The pulsating gas exchange noise of the reciprocating engine is damped in the air intake duct.
Helmholtz resonators are technical solutions for achieving the maximum air duct cross-section and minimum packaging space volume vehicle-specific damping specifications.
Hot film air mass meter
The intake air mass is filtered in all engines via an 8th generation hot film air mass meter.
The hot film air mass meter has the following four electrical connections:
- Voltage supply (+)
- Ground (-)
- Sensor signal (SENT data protocol)
- Not assigned
A manipulation-proof SENT signal is available for data transfer.
8th generation hot film air mass meter in the G30
- Voltage supply (5 V)
- Ground connection
- Sensor signal (SENT protocol)
- Not assigned
- Connector encoding
The 8th generation hot film air mass meter has a specific electric connector, this is so it cannot be swapped between the various engine versions.
The following table provides an overview of the various sensor generations in the gasoline engine.
Charge air cooling
All gasoline engines are equipped with indirect charge air cooling.
Intake system with integrated, indirect charge air cooler using the example
of the B58 engine
- Throttle valve fixture
- Tank ventilation
- Ventilation line to the expansion tank
- Charge air cooler
- Coolant return
- Coolant supply
- Cylinder head connection
Exhaust emission system
The 4- and 6-cylinder gasoline engines have an electrical exhaust flap on the right side. The 8-cylinder gasoline engines are equipped with two electrical exhaust flaps.
Overview of exhaust gas variants in the G30
- BMW 530i
- BMW 540i
- BMW M550i
- Front silencer
- Center silencer
- Rear silencer
- Electrical exhaust flap actuator
Tailpipe versions
Gasoline engine exhaust tailpipe variants in the G30
- BMW 530i
- BMW 540i
- BMW M550i
BMW 530i models with optional equipment M sport package (OE 337) use the exhaust tailpipe version from figure B.
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Active air flap control
It was possible to carry over the active air-flap control from the G12. The
cooling surfaces at the front
of the vehicle can be closed by means of two separate air flaps. This reduces
the drag coeff
Gasoline engines
B468/B58 Engine
The B46/B58 engines have two separate coolant circuits. The coolant in the
low-temperature coolant
circuit to cool the charge air. The coolant in the high-temperature coolant
circuit
SEE MORE:
Concept, General information, Safety information
Concept
The system monitors tire inflation pressure in the
four mounted tires. The system warns you if
there is a loss of pressure in one or more tires.
General information
Sensors in the tire valves measure the tire inflation
pressure and tire temperature.
Using the tire settings in iDrive, the sy
Operation
The touch screen display and Remote Control Parking button on the BMW display
key are used to
operate the Remote Control Parking function. This makes the function intuitive
to use and provides the
driver with messages on the action required to operate the function and system
limits.
The remote-c
