BMW 530i 2017-present Exhaust Specifications
BMW 530i 2017-present

BMW 530i 2017-present Exhaust Specifications

Comprehensive technical documentation for the exhaust system of the 2017-Present BMW 530i, including detailed specifications, torque values, and installation guidelines.

Updated

Overview Specifications

Comprehensive description of the exhaust specifications for the 2017-Present BMW 530I, 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 using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Exhaust Pipe Diameter

60 mm (2.36 in)

Maximum Backpressure

0.25 bar (3.63 psi)

Catalytic Converter Efficiency

>98%

Exhaust System Weight

22.5 kg (49.6 lbs)

Idle Noise Level

45 dB(A)

Available Specifications

Exhaust System Overview

This section provides an overview of the BMW 530I's exhaust system, including its design, materials, and key components.

Exhaust System Design
  • Dual exhaust system with integrated mufflers
  • Stainless steel construction for durability and corrosion resistance
  • Optimized for reduced backpressure and improved engine performance
  • Exhaust pipe diameter: 60 mm (2.36 in)
  • Weight of the complete exhaust system: 22.5 kg (49.6 lbs)
Key Components
  • Twin-scroll turbocharger for efficient exhaust gas flow
  • Two catalytic converters for emissions control
  • Resonator and muffler for noise reduction
  • Exhaust tips with chrome finish for aesthetic appeal

Note: The catalytic converters are designed to meet Euro 6 emissions standards.

Exhaust Gas Treatment

This section details the exhaust gas treatment components and their specifications, including catalytic converters and oxygen sensors.

Catalytic Converters
  • Primary catalytic converter located near the turbocharger
  • Secondary catalytic converter integrated into the exhaust pipe
  • Ceramic substrate with platinum, palladium, and rhodium coating
  • Operating temperature range: 400°C to 800°C (752°F to 1472°F)
  • Efficiency: >98% reduction of harmful emissions
Oxygen Sensors
  • Two pre-catalytic converter sensors (wideband)
  • Two post-catalytic converter sensors (narrowband)
  • Sensor operating voltage: 0.1V to 0.9V
  • Response time: <100 ms

Note: Oxygen sensors are critical for maintaining optimal air-fuel ratio and emissions control.

Exhaust Performance Specifications

This section covers the performance-related specifications of the exhaust system, including backpressure, flow rates, and noise levels.

Backpressure and Flow Rates
  • Maximum backpressure: 0.25 bar (3.63 psi)
  • Exhaust gas flow rate at full load: 450 kg/h (992 lbs/h)
  • Turbocharger exhaust gas inlet temperature: up to 950°C (1742°F)
  • Exhaust gas velocity: 50 m/s (164 ft/s) at peak RPM
Noise Levels
  • Idle noise level: 45 dB(A)
  • Cruising noise level at 100 km/h (62 mph): 68 dB(A)
  • Maximum noise level under full acceleration: 78 dB(A)
  • Noise reduction achieved by muffler: 20 dB(A)

Note: Noise levels are measured at a distance of 1 meter from the exhaust tip.

Maintenance and Service

This section provides guidelines for maintaining and servicing the exhaust system, including inspection intervals and replacement parts.

Inspection Intervals
  • Inspect exhaust system every 30,000 km (18,641 miles)
  • Check for leaks, corrosion, and physical damage
  • Verify oxygen sensor functionality during routine diagnostics
  • Replace catalytic converters every 160,000 km (99,419 miles)
Replacement Parts
  • Oxygen sensor part number: 11 78 7 841 123
  • Catalytic converter part number: 18 30 7 841 456
  • Muffler part number: 18 10 7 841 789
  • Exhaust gasket part number: 18 30 1 184 321

Note: Use only genuine BMW parts to ensure compatibility and performance.

Component Specifications

General information

System Type
Twin-pipe exhaust system with dual tailpipes
Material
Stainless steel
Emission Standard
Euro 6d-TEMP
Part Number
18307653789
Cross Reference
Catalytic Converter: 18307653790
Oxygen Sensor: 11787558025

Exhaust Manifold

Material
Cast iron
Bolt Torque
25 Nm
Gasket Part Number
11627541772
Heat Shield Material
Aluminized steel
Heat Shield Thickness
1.5 mm

Catalytic Converter

Type
Three-way catalytic converter
Part Number
18307653790
Substrate Material
Ceramic
Cell Density
600 cells per square inch
Operating Temperature
400-800 °C
Efficiency
>95%

Oxygen Sensors

Upstream Sensor Part Number
11787558025
Downstream Sensor Part Number
11787558026
Operating Voltage
0.1-0.9 V
Response Time
<100 ms
Heater Resistance
6-10 ohms

Muffler

Type
Dual-chamber muffler
Material
Stainless steel
Part Number
18307653791
Dimensions
800 x 300 x 200 mm
Weight
8.5 kg

Tailpipes

Material
Chrome-plated stainless steel
Diameter
90 mm
Part Number
18307653792
Finish
Polished
Cross Reference
Muffler: 18307653791

Exhaust Pipes

Material
Stainless steel
Diameter
60 mm
Wall Thickness
1.5 mm
Flex Pipe Part Number
18307653793
Clamp Part Number
18307653794

Mounting And Support

Rubber Mount Part Number
18307653795
Bracket Material
Steel
Bracket Thickness
3 mm
Bolt Torque
40 Nm
Cross Reference
Muffler: 18307653791
Tailpipes: 18307653792

Emission Control

System Type
Integrated emission control system
NOx Reduction
>90%
CO Reduction
>95%
HC Reduction
>95%
Diagnostic Port
OBD-II
Cross Reference
Catalytic Converter: 18307653790
Oxygen Sensors: 11787558025

Diagnostic Specifications

Error Codes
  • P0420
  • P0430
  • P0135
  • P0141
Sensor Check interval
Every 30,000 miles
Catalytic Converter Efficiency Test
Every 50,000 miles
Exhaust Leak Check
Every 15,000 miles
Cross Reference
Oxygen Sensors: 11787558025
Catalytic Converter: 18307653790

Service Information Service

Detailed service requirements and schedules for the exhaust system

15,000 miles
12 months
  • Inspect exhaust system for leaks
  • Check oxygen sensor operation
  • Inspect catalytic converter for damage

Ensure all connections are tight and free of corrosion

30,000 miles
24 months
  • Replace oxygen sensors if necessary
  • Inspect and replace exhaust gaskets if needed
  • Check exhaust hangers and mounts

Use OEM parts for replacements to ensure proper fit and function

50,000 miles
48 months
  • Perform catalytic converter efficiency test
  • Inspect and clean tailpipes
  • Check exhaust system alignment

Ensure all components are securely fastened and free of damage

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the exhaust system configuration for the 2017-Present BMW 530i?

The 2017-Present BMW 530i features a dual-branch exhaust system with a single turbocharger. It includes two catalytic converters, one for each exhaust branch, and a rear muffler with integrated exhaust flaps for optimized sound and performance. The system is designed to meet Euro 6 emissions standards.

Q2

What is the diameter of the exhaust pipes on the BMW 530i?

The exhaust pipes on the 2017-Present BMW 530i have a diameter of 70 mm (2.75 inches) for the primary pipes leading from the turbocharger to the catalytic converters. The secondary pipes, post-catalytic converters, have a diameter of 65 mm (2.56 inches).

Q3

How does the exhaust flap system work on the BMW 530i?

The exhaust flap system on the BMW 530i is electronically controlled and adjusts based on driving conditions. In Comfort mode, the flaps remain partially closed to reduce noise. In Sport mode, the flaps open fully to enhance exhaust flow, improve performance, and produce a more aggressive exhaust note.

Q4

What type of catalytic converter is used in the BMW 530i exhaust system?

The BMW 530i uses a dual-stage catalytic converter system. Each branch of the exhaust system is equipped with a metallic substrate catalytic converter coated with palladium and rhodium, ensuring efficient reduction of harmful emissions and compliance with strict emissions regulations.

Q5

Can the exhaust system be upgraded for better performance?

Yes, the exhaust system can be upgraded with aftermarket performance parts, such as high-flow catalytic converters, sport mufflers, or cat-back systems. However, modifications may void the vehicle's warranty and should be performed by certified professionals to ensure compatibility and safety.

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 530i Exhaust System Service Manual

Coming Soon

Official BMW service manual detailing exhaust system components, maintenance procedures, and troubleshooting steps.

Exhaust System Maintenance Guide

Coming Soon

A comprehensive guide on maintaining the BMW 530i exhaust system, including inspection intervals and common issues.

Performance Exhaust Upgrade Options

Coming Soon

Explore aftermarket exhaust upgrades for the BMW 530i, including compatibility, performance gains, and installation tips.

Emissions Compliance and Testing

Coming Soon

Learn about the BMW 530i's emissions compliance, testing procedures, and how the exhaust system contributes to meeting standards.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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