BMW 750i 2015-present Exhaust Specifications
Detailed technical specifications and documentation for the 2015-Present BMW 750i exhaust system. Includes component details, torque specifications, and maintenance guidelines for optimal performance.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2015-Present BMW 750i, including key features, measurements, and technical details. This section provides detailed insights into the exhaust system's design, components, and performance specifications.
How to Use
Use the search function to locate specific exhaust specifications by entering keywords such as 'catalytic converter,' 'muffler,' or 'exhaust pipe diameter.'
Navigate through the exhaust documentation sections by selecting the relevant section from the table of contents or using the sidebar menu.
Key Specifications
Exhaust Pipe Diameter
70 mm
Tailpipe Diameter
90 mm
Catalytic Converter Efficiency
>95%
Active Exhaust Valve Actuation Time
<200 ms
Operating Temperature Range
400°C to 800°C
Available Specifications
Exhaust System Overview
This section provides an overview of the exhaust system, including its components, materials, and design features.
Exhaust System Overview
This section provides an overview of the exhaust system, including its components, materials, and design features.
Exhaust System Components
- Dual exhaust system with quad tailpipes
- Stainless steel construction for durability
- Integrated catalytic converters for emissions control
- Active exhaust valves for sound modulation
- Exhaust pipe diameter: 70 mm
Material and Design
- High-grade stainless steel for corrosion resistance
- Lightweight design for improved performance
- Aerodynamically optimized tailpipes
- Heat shields for thermal management
- Note: The exhaust system is designed to meet Euro 6 emissions standards.
Note: The exhaust system is engineered to balance performance, durability, and emissions compliance.
Catalytic Converters
This section details the catalytic converters, including their specifications, placement, and function within the exhaust system.
Catalytic Converters
This section details the catalytic converters, including their specifications, placement, and function within the exhaust system.
Catalytic Converter Specifications
- Two primary catalytic converters
- Ceramic substrate with precious metal coating
- Operating temperature range: 400°C to 800°C
- Efficiency: >95% reduction in harmful emissions
- Note: Catalytic converters are located close to the engine for optimal performance.
Secondary Catalytic Converters
- Two secondary catalytic converters
- Positioned downstream of the primary converters
- Additional reduction of NOx and CO emissions
- Designed for long-term durability
- Note: Secondary converters are part of the underfloor exhaust system.
Muffler and Sound Management
This section covers the muffler design, sound management features, and technical specifications.
Muffler and Sound Management
This section covers the muffler design, sound management features, and technical specifications.
Muffler Design
- Twin-chamber muffler design
- Integrated sound-absorbing materials
- Active exhaust valves for adjustable sound levels
- Tailpipe diameter: 90 mm
- Note: The muffler is designed to minimize backpressure.
Active Sound Management
- Electronically controlled exhaust valves
- Adjustable sound profiles via driving modes
- Valve actuation time: <200 ms
- Note: Sound management is integrated with the vehicle's driving dynamics system.
Note: The active sound management system enhances the driving experience by providing customizable exhaust notes.
Exhaust Pipe and Tailpipes
This section provides details on the exhaust pipes and tailpipes, including dimensions and materials.
Exhaust Pipe and Tailpipes
This section provides details on the exhaust pipes and tailpipes, including dimensions and materials.
Exhaust Pipe Specifications
- Main exhaust pipe diameter: 70 mm
- Secondary pipe diameter: 60 mm
- Material: Stainless steel
- Wall thickness: 1.5 mm
- Note: The exhaust pipes are designed for optimal flow and minimal resistance.
Tailpipe Design
- Quad tailpipes with chrome finish
- Tailpipe diameter: 90 mm
- Aerodynamic design for reduced turbulence
- Note: Tailpipes are symmetrically positioned for a balanced appearance.
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Component Specifications
General Specifications
- Material
- Stainless steel
- System Type
- Dual exhaust with quad tailpipes
- Emission Standard
- Euro 6
- Part Number
- 18307585234
- Weight
- 32.5 kg
Exhaust Manifold
- Material
- Cast iron
- Part Number
- 11627585234
- Bolt Torque
- 25 Nm
- Gasket Part Number
- 11627585235
- Heat Shield Material
- Aluminized steel
Catalytic Converter
- Type
- Three-way catalytic converter
- Part Number
- 18307585235
- Efficiency
- >95%
- Operating Temperature
- 400-800°C
- Substrate Material
- Ceramic
- Warranty
- 8 years or 80,000 miles
Muffler
- Type
- Dual-chamber muffler
- Part Number
- 18307585236
- Material
- Stainless steel
- Noise Reduction
- 25 dB
- Mounting Bolt Torque
- 20 Nm
Tailpipes
- Quantity
- 4
- Diameter
- 90 mm
- Material
- Chrome-plated stainless steel
- Part Number
- 18307585237
- Finish
- Polished
Oxygen Sensors
- Quantity
- 2
- Type
- Wideband zirconia sensor
- Part Number
- 11787585234
- Operating Temperature
- -40 to 900°C
- Response Time
- <100 ms
Exhaust Flanges
- Material
- Stainless steel
- Gasket Part Number
- 18307585238
- Bolt Torque
- 30 Nm
- Sealant Type
- High-temperature silicone
Exhaust Hangers
- Quantity
- 6
- Material
- Rubber with steel core
- Part Number
- 18307585239
- Load Capacity
- 15 kg each
- Replacement interval
- Inspect every 30,000 miles
Exhaust Valve
- Type
- Electronically controlled flap
- Part Number
- 18307585240
- Operating Voltage
- 12 V
- Response Time
- <200 ms
- Failure Mode
- Defaults to open position
Heat Shields
- Material
- Aluminized steel
- Thickness
- 1.5 mm
- Part Number
- 18307585241
- Mounting Bolt Torque
- 15 Nm
- Thermal Conductivity
- 0.5 W/mK
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust hangers for wear
- Check for exhaust leaks
- Inspect catalytic converter for damage
- Verify oxygen sensor operation
Replace any worn or damaged components immediately
- Replace oxygen sensors
- Inspect and clean exhaust valves
- Check heat shields for corrosion
- Verify exhaust system alignment
Use only BMW-approved parts for replacements
- Replace catalytic converter if efficiency drops below 90%
- Inspect and replace exhaust gaskets
- Check muffler for internal damage
- Verify exhaust flap operation
Perform a full exhaust system diagnostic scan
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2015-Present BMW 750i?
What is the exhaust system configuration for the 2015-Present BMW 750i?
The 2015-Present BMW 750i features a dual exhaust system with two tailpipes, each measuring 90mm in diameter. The system includes a catalytic converter, particulate filter, and electronically controlled exhaust flaps for optimized performance and sound.
Q2 What material is used in the BMW 750i exhaust system?
What material is used in the BMW 750i exhaust system?
The exhaust system is constructed from high-quality stainless steel, ensuring durability and resistance to corrosion. The tailpipes are chrome-plated for a premium finish.
Q3 How does the exhaust flap system work in the BMW 750i?
How does the exhaust flap system work in the BMW 750i?
The exhaust flaps are electronically controlled and adjust based on driving conditions. They open during aggressive acceleration to reduce backpressure and enhance performance, and close during cruising for improved fuel efficiency and reduced noise.
Q4 What is the backpressure specification for the BMW 750i exhaust system?
What is the backpressure specification for the BMW 750i exhaust system?
The backpressure in the exhaust system is designed to be below 0.5 bar (7.25 psi) under normal operating conditions. This ensures optimal engine performance and efficiency.
Q5 Can aftermarket exhaust systems affect the BMW 750i's warranty?
Can aftermarket exhaust systems affect the BMW 750i's warranty?
Yes, installing non-genuine or aftermarket exhaust systems may void the vehicle's warranty, particularly if the modification causes damage to the engine or emissions system. Always consult your BMW dealer before making changes.
Q6 What is the recommended service interval for the exhaust system?
What is the recommended service interval for the exhaust system?
BMW recommends inspecting the exhaust system every 30,000 miles or 24 months, whichever comes first. This includes checking for leaks, corrosion, and proper operation of the exhaust flaps.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
BMW 750i Exhaust System Technical Guide
Coming SoonA detailed guide covering the design, components, and maintenance of the BMW 750i exhaust system.
Exhaust Flap Control System Overview
Coming SoonLearn how the electronically controlled exhaust flaps optimize performance and sound in the BMW 750i.
Stainless Steel Exhaust Maintenance Tips
Coming SoonBest practices for maintaining and cleaning stainless steel exhaust components to prevent corrosion and ensure longevity.
BMW Genuine Parts Catalog
Coming SoonAccess the official BMW parts catalog to find genuine exhaust components for the 750i.
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