What are exhaust and emission control systems used for?

Exhaust and emission control systems are used for the safe discharge of exhaust gases and to improve engine operating conditions. They limit noise, support proper gas flow, and help meet emission standards. Without their proper operation, control unit errors, increased fuel consumption, and power loss may occur. In practice, they also affect the car's refinement and the durability of cooperating components.

What is the construction and function of an exhaust heat shield?

An exhaust heat shield is an element usually made of profiled sheet metal, mounted near hot exhaust parts. It serves to limit the impact of high temperatures on the body floor, hoses, and mounting elements. Its construction includes stiffening ribs and holes for bolts or clips. Depending on the model, it works with chassis tunnels, the catalytic converter, the silencer, or the particulate filter.

How to choose an exhaust part for a specific car?

It is best to compare the OEM number, engine code, body version, and mounting location. It is also worth checking the connection diameter, the number and position of hangers, the type of sensor connector, and whether the car is pre-facelift or post-facelift. For parts responsible for emissions, compliance with the appropriate emission standard also matters.

What symptoms indicate wear of exhaust and emission control elements?

Typical symptoms include louder engine operation, metallic vibrations under the floor, power loss, higher fuel consumption, or an engine error light. In case of leaks, an exhaust smell may appear, and with DPF or catalytic converter problems, also reduced performance. It is worth noting whether the symptoms occur on a cold engine, during acceleration, or during filter regeneration.

Which cooperating elements should be paid attention to during assembly?

During assembly, the condition of gaskets, clamps, flanges, bolts, rubber hangers, and heat shields should be assessed. Hoses and sensors should also be checked, as a damaged connector or connection leak can cause incorrect readings. After replacement, it is important to properly align the entire system so that it does not transmit vibrations to the bodywork.

Exhaust systems and exhaust gas treatment

At Global Parts, we offer a wide selection of original used car parts, including exhaust systems and exhaust aftertreatment components for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each part we offer undergoes quality control to ensure you receive a top-quality product.

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Audi Q7 4L Exhaust Manifold Left N/S 3.0 TDI V6 Diesel Engine 059253033BP

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059253034AQ

Audi Q7 4L 3.0 TDI V6 Diesel Engine Exhaust Manifold Right O/S 059253034AQ

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06A959253E

Audi A3 8P Q7 4L A4 A6 Auxiliary Secondary Air Pump 06A959253E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0253295

Audi RS6 C7 Exhaust Manifold Bracket Holder Left N/S 8K0253295

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06H906283B

Audi A3 8V A4 B8 VW Golf Mk7 Vacuum Line Solenoid Valve 1.8 TFSI 06H906283B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 057131525Q

Audi Q7 4L 4.2 TDI Quattro Exhaust Gas EGR Cooler Pipe Hose 057131525Q

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 07K129597M

Audi RS3 8V Turbocharger Heat Protection Shield Plate 2.5 TFSI Petrol 07K129597M

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253037AD

Audi A4 S4 8K A5 S5 8F Exhaust Manifold Cover Plate Shield Left N/S 06E253037AD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4M0906088BA

Audi A4 B9 A7 4G Q7 4M Exhaust Gas Temperature Sensor Diesel 4M0906088BA

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253031B

Audi A4 B7 A6 A8 Exhaust Manifold Header Left N/S 06E253031B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L919529E

Audi A4 B9 A5 F5 Exhaust Gas Temperature Sensor 2.0 TDI 04L919529E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 079131166Q

Audi S5 8T 4.2 FSI CAUA Adapter Combination Valve Right O/S 079131166Q

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253032AB

Audi A6 C7 Q7 4M Exhaust Manifold Cylinders 1-3 3.0 TFSI CREC 06E253032AB

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253036AD

Audi A4 S4 8K A5 S5 8F Exhaust Manifold Cover Plate Shield Right O/S 06E253037AD

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059906051C

VW Audi Skoda Exhaust Pressure Sensor DPF Particulate Filter Sensor 059906051C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L131512DN

Audi A4 B8 2.0 TDI EGR Exhaust Valve EGR Cooler Assembly Unit 03L131512DN

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4N4908265L

Audi A6 C8 3.0 TFSI Oxygen Lambda Sensor 06M906265

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8V0906262D

VW Golf Mk7 Audi A3 8V S1 8X Oxygen Sensor Lambda Probe 2.0 Petrol 8V0906262D

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8R0906262

Audi A5 8T 2.0 TDI Lambda Sensor Oxygen Sensor 8R0906262

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131460B

Audi A6 A7 4G8 Vacuum Hose EGR Valve Line Diesel 3.0 TDI 059131460B

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L129969R

Audi A5 8T Exhaust Turbocharger Heat Shield Cover 2.0 TDI Diesel 04L129969R

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L906088DR

Audi A5 8T Exhaust Gas Temperature Sensor 04L906088DR

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265C

Audi S5 F5 NOX Sensor Lambda Oxygen Probe 2.9 TFSI Left N/S 8W0906265C

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 59001091162

Audi A6 C6 3.0 TDI Turbocharger Exhaust Manifold Elbow Connector 59001091162

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059129712BN

Audi A6 C6 Intake Manifold Inlet Pipe Tube Right O/S 2.7 3.0 TDI 059129712BN

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K906262Q

Volkswagen Golf VII Audi TT FV 2.0 TFSI Lambda Probe Oxygen Sensor 06K906262Q

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L131512

Audi A4 B9 A5 F5 EGR Cooler Gas Recirculation EGR Valve 2.0 TDI 05L131512

€56.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265L

Audi S5 F5 NOX Sensor Lambda Oxygen Probe 2.9 TFSI Left N/S 8W0906265L

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L131501R-1

Audi A1 8X Q3 8U Engine EGR Exhaust Valve 2.0 TDI 04L131501R

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 079253034AK

Audi S5 8T Quattro Petrol 4.2 FSI V8 Exhaust Manifold Cyl. 1-4 079253034AK

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L907807BB

Audi A2 GA 2.0 TDI DTTC Oxygen NOX Sensor Module Control Unit 05L907807BB

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06H906262A

Audi A5 8T Engine Exhaust Oxygen Lambda Sensor Catalytic 06H906262A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059129712-1

Audi Q7 4L 3.0 TDI Diesel Intake Manifold Inlet Pipe Tube Right O/S 059129712

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131789L

Audi Q7 4L 3.0 TDI Diesel Exhaust Manifold Pipe Tube Left N/S 059131789L

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E906265N

Audi A4 B7 Volkswagen Touareg Exhaust Oxygen Lambda Probe Sensor 06E906265N

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131525BN

Audi Q7 4L 3.0 TDI CRCA Diesel EGR Valve Line Hose Pipe Tube 059131525BN

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 81A253825A

Audi Q2 GA Tailpipe Exhaust Cover Trim Cap Finish 81A253825A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L131521AD

VW Golf 1K Passat 3C Audi Q5 8R Exhaust Gas EGR Pipe Line Hose Tube 03L131521AD

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L131512BL-2

Audi A3 8P EGR Valve Cooler Unit 2.0 TDI CFGB Diesel 03L131512BL

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265AC

Audi A5 F5 Q5 FY Lambda Probe Oxygen Monitor Sensor 8W0906265AC

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131515EQ

Audi A7 4G8 Biturbo EGR Valve Cooler 6 Cylinder 230HP 3.0 TDI CGQB 059131515EQ

€550.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059906262B

Audi Q7 4L Volkswagen Touareg Lambda Oxygen Sensor Probe Cable Diesel 059906262B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Audi A4 B9 A5 F5 Exhaust Pipe End Tips Silencers Set X2 2.0 TFSI 8W0253825B

-1%

Part no. 8W0253825B

Audi A4 B9 A5 F5 Exhaust Pipe End Tips Silencers Set X2 2.0 TFSI 8W0253825B

Promo price

€42.95

€42.45

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L131501A

Audi A4 B9 A5 F5 EGR Recirculation Gas Valve 2.0 TDI Diesel Engine 05L131501L

€42.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 07K131333A

Volkswagen Passat Golf Audi RS4 B8 Auxiliary Secondary Air Pump 07K131333A

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059906088AT

Audi A5 8T 3.0 TDI CCWA Diesel Exhaust Gas Temperature Sensor 059906088AT

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 022253035AB

Audi TT 8N Exhaust Manifold Engine Heat Shield Protection Cover 3.2 022253035AB

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059103555B

Audi A7 4G Cylinder Head Cover Heat Shield Guard Plate 3.0 TDI 059103555B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253032B

Audi A4 B7 Engine Exhaust Manifold Right O/S 3.2 FSI AUK BKH 06E253034E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059906088M

Audi A4 B8 3.0 TDI Diesel Exhaust Gas Temperature Sensor 059906088M

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059253034L

Audi A4 B7 2.7 TDI BPP Front Exhaust Outlet Manifold Right O/S 059253034L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131501D

Audi A5 8T 3.0 TDI Diesel Engine EGR Valve 059131501D

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E253037R

Exhaust Manifolf Shield Audi S4 B8 S5 8T 3.0 TFSI Plate Left N/S 06E253037R

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03G131512AP

Audi A3 8P 2.0 TDI BMN EGR Gas Cooler Flue Recirculation 03G131512AE

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0253141P-1

Audi A4 B8 A4 B9 A5 8T 8F A6 C8 A8 D4 Exhaust Clamp Pipe Muffler 1K0253141P

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 057131501E-1

Audi Q7 4L Exhaust Gas Recirculation EGR Valve 4.2 TDI BTR 057131501E

€80.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4M0906088AM

Audi A6 C8 A7 4K Exhaust Control Gas Temperature Sensor 3.0 TDI 4M0906088AM

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4K0906265B

Audi A4 B9 A5 F5 A6 C8 A7 4K Lambda Probe Sensor 2.0 TDI 4K0906265B

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06A906262BS

Audi A3 8P Lambda Sensor Oxygen Sensor Lambda Probe 2.0 TDI 06A906262BS

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L906051L

Audi A4 B9 A5 F5 DPF Exhaust Pressure Sensor 2.0 TDI Diesel 04L906051L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L131521

Audi TT 8J EGR Cooler Coolant Pipe Hose Line 2.0TDI 03L131521V

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 420251376

Audi R8 42 Exhaust System Pipe Holder Bracket Mount Right O/S 420251376

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 4M0906088AA

Audi A4 B9 A5 S5 A7 4G8 Q7 4M Exhaust Gas Temperature Sensor Diesel 4M0906088AA

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F906262AJ

Audi A3 8P 1.6 Petrol Lambda Oxygen Exhaust Sensor Cable 06F906262H 06F906262AJ

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0906283A-1

Porsche Cayenne 92A Vacuum Pressure Solenoid Valve With Line 1K0906283A

€51.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 05L906088BM

Audi A4 B9 A5 F5 Exhaust Gas Temperature Sensor 2.0 TDI Diesel 05L906088BM

€85.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 03L253031

Audi A4 B8 A5 8T Turbo Exhaust Manifold Unit 2.0 TDI Diesel 03L253033

€94.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 07L906262S

Audi A4 B8 A5 8T Lambda Probe Oxygen Monitor Sensor 07L906262S

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L906088BS

Audi Q3 8U 2.0 TDI Exhaust Gas Temperature Sensor After DPF 04L906088BS

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8E0253653A

Audi A4 B7 Rear Centre Silencer Balance Weight 8E0253653A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265S

Lambda Sensor Audi A4 B9 A5 F5 45 TFSI Oxygen Sensor Lambda Probe 8W0906265S

€47.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 420301325

Audi R8 42 Gearbox Transmission Heat Shield Oil Plate Insulation 420301325

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L253725B

Audi A3 8Y 30 TFSI DXDE Exhaust Pipe Clamp 04L253725B

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059253033L

Audi A4 B7 2.7 TDI Front Exhaust Outlet Manifold Left N/S 059253033L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265AQ

Audi A4 B9 NOX Sensor Lambda Oxygen Probe 8W0906265AQ

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L131455A

Audi Q3 8U 2.0 TDI Exhaust Gas Cooler Clamp To Patricular Filter DPF 04L131455A

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L906088DT

Audi Q3 8U Exhaust Gas Temperature Sensor Wiring 2.0 TDI DFTA 04L906088DT

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06E906265P

Audi A4 B7 8E Exhaust Lambda Sensor Behind Catalyst 3.2 FSI AUK 06E906265P

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06J906262K

Lambda Probe Audi Volkswagen Seat 2.0 Petrol Oxygen Sensor 4 PIN 06J906262K

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 1K0253725E

Audi Q7 4L VW Touareg 7P EGR Pipe Holder Cat Clamp Gasket 1K0253725E

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0501721C

Audi A4 B8 A5 8T A6 C7 A7 4G Rear Driveshaft Guard Shield Plate Cover 8K0501721C

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F906262N

Lambda Sensor Audi A4 B8 A5 8F 2.0 TFSI Exhaust Oxygen Control 06F906262N

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 420301325D

Audi R8 Gen 1 Gearbox Transmission Heat Shield Plate Insulation 420301325D

€37.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131515CG-2

Audi A4 B8 A6 C7 EGR Valve Engine Exhaust Cooler 3.0 TDI Diesel 059131515CG

€132.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8K0407719

Audi S5 8T Front Driveshaft Heat Protector Guard Plate Left N/S 8K0407719

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 5QJ407720

Audi A3 S3 8Y Front Driveshaft Heat Shield Plate Cover Right O/S 5QJ407720

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06F906265

Audi S5 8T Exhaust Lambda Probe Oxygen Sensor 06F906265

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 079131101AB

Audi A5 S5 8T 4,2 V8 Exhaust Gas Combination Valve Left N/S 079131101AB

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131534C

Audi S3 8Y EGR Connection Pipe Hose Line Tube 2.0 TFSI DNFB Petrol 059131534C

€28.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L131552BK

Audi A5 8T 2.0 TDI EGR Tube Line Pipe Exhaust Gas Pressure Sensor 04L131552BK

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06K906262AC

Audi A1 8X 1.4 TFSI Exhaust Lambda Oxygen Sensor Probe 06K906262AC

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059131492AE

Audi S4 B8 A5 8F S5 8T Q7 4L Vacuum Pipe Line Hose Tube EGR 059131492AE

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 079131102C

Audi A5 S5 8T 4,2 V8 Exhaust Gas Combination Valve Right O/S 079131102C

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0906265M

Audi A5 F5 SQ5 FY Lambda Oxygen Sensor Exhaust Wiring 8W0906265M

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 04L906088EB

Audi Q3 8U 2.0 TDI DFUA Exhaust Gas Temperature Sensor Wiring 04L906088EB

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 06Q131552F

Audi S3 8Y Exhaust Control Line Differential Pressure Sensor 2.0 TFSI 06Q131552F

€66.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 8W0253725K

Audi A6 C8 A4 B9 Exhaust Muffler Bracket Holder Mount Clamp 8W0253725K

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 059129712BQ

Audi Q7 4L 3.0 TDI Diesel Intake Manifold Inlet Pipe Tube Right O/S 059129712BQ

€32.95

Free delivery: Aug 5 – 10

If paid before 14:00

Part no. 078131102L

EGR Valve Audi A4 S4 B6 B7 4.2 Engine Exhaust Cooler 078131102L

€23.95

Free delivery: Aug 5 – 10

If paid before 14:00

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Showing 1-99 of 622 products

Reliable parts for exhaust systems and emission filters – perfect fit for your car

Durable exhaust components – for maximum performance and durability

Exhaust systems and emission control systems are essential components of every modern vehicle. Their task is not only to reduce noise but, above all, to decrease the emission of harmful substances, making driving more eco-friendly and compliant with current standards. In the Global Parts automotive store, you will find a wide range of used car parts for exhaust and emission control systems for brands such as BMW, AUDI, Volkswagen, Mercedes, Mini, and others. The exhaust system in a typical passenger car operates at temperatures ranging from 200°C up to 800°C under high engine load. This is why these components must be made of corrosion-resistant and temperature-fluctuation-resistant materials, such as stainless steel or nickel alloys. A well-chosen exhaust system not only protects the environment but also increases combustion efficiency, which can translate into fuel savings of 5–7% compared to a faulty system.

How do exhaust and emission control systems work?

Exhaust systems are advanced systems consisting of many key components working together to effectively discharge exhaust gases and reduce their harmfulness. The most important elements are:

Bypass valves – control exhaust gas flow, helping to optimize pressure in the exhaust system.
EGR valves and parts – responsible for exhaust gas recirculation, which reduces nitrogen oxide emissions and improves fuel combustion.
Secondary air pumps – support the combustion process by supplying additional oxygen to the exhaust system, reducing exhaust emissions.
Catalytic converters – clean exhaust gases by neutralizing harmful substances such as nitrogen oxides or carbon monoxide.
Exhaust systems and kits – comprehensive sets of exhaust system components ensuring optimal engine performance.
Manifolds – responsible for discharging exhaust gases from the cylinders to the subsequent parts of the exhaust system.
Exhaust pipes and tips – ensure efficient exhaust discharge and give the vehicle a specific visual character.
Clamps, clips, flanges, and mounting parts – allow for solid mounting of the exhaust system.
Silencers and resonators – reduce noise generated by the engine, improving driving comfort.
Exhaust gaskets – ensure connection tightness and eliminate the risk of exhaust leaks.
Lambda sensors and O2 sensors – monitor exhaust gas composition, optimizing the air-fuel mixture and improving combustion economy.
Heat shields, connectors, and sleeves – protect exhaust system components from overheating and improve their durability.
Solenoid valves – regulate gas flow in the exhaust system, improving its efficiency. Each of these components is crucial for engine performance, driving comfort, and environmental protection.

Construction and purpose of exhaust and emission control systems

Exhaust and emission control systems are a set of parts mounted from the exhaust manifold to the final section of the exhaust under the floor and at the rear of the car. This system is used to discharge exhaust gases, dampen noise, and limit the emission of harmful compounds. A typical system includes pipes, silencers, resonators, mounting elements, heat shields, and components responsible for emission control. In many designs, it also works with the Intake and fuel system and engine management.

Comparison of exhaust and emission control component types

Component type	Main function	What to check before selection	Cooperating components
Catalytic converter	Reducing harmful exhaust emissions	OEM number, connection diameter, engine type, emission version	Lambda sensor, exhaust pipes, heat shields
EGR valve	Recirculating part of exhaust gases to the intake system	Control type, housing shape, connector, engine compatibility	Manifold, hoses, engine control unit
Silencer or resonator	Noise reduction and gas flow stabilization	Housing length, mounting points, pipe diameter, body version	Hangers, clamps, exhaust tips
Secondary air pump	Supplying additional air during startup and cold operation	OEM number, plug, mounting, hose connection direction	Control valves, hoses, electrical installation

For example, a diesel particulate filter (DPF) installed in diesel engines can trap up to 90% of soot produced during the combustion process. In cars from brands like Audi or BMW, DPF parameters are adapted to Euro 6 standards, which allow nitrogen oxide (NOx) emissions of only 80 mg/km. This shows how precisely these systems must be designed to meet strict regulations.

Why is it worth taking care of exhaust and emission control systems?

Regular maintenance and replacement of exhaust and emission control system components are the basis for efficient and eco-friendly engine operation. Neglecting these systems can lead to:

Increased exhaust emissions, which may result in failing a technical inspection.
Damage to key components such as catalytic converters or DPF filters.
Decreased vehicle performance and higher fuel consumption. At Global Parts, we offer original used car parts that undergo rigorous quality tests, ensuring reliability and durability.

Emission control function and cooperation with other systems

The emission control system is used to limit the amount of nitrogen oxides, particulate matter, and carbon monoxide leaving the exhaust system. Its effectiveness depends not only on the catalytic converter or DPF itself but also on correct sensor readings and proper operation of the control unit. Therefore, when diagnosing, it is worth considering the Automotive electrical systems and Engines and parts, because a fault outside the exhaust can affect emission errors and mixture composition.

How to choose the right parts for exhaust and emission control systems?

When choosing parts for exhaust and emission control systems, such as silencers, catalytic converters, or particulate filters, it is worth paying attention to:

Vehicle model fitment – every car brand and model requires specific solutions. At Global Parts, you will find exhaust and emission control system components perfectly matched to BMW, AUDI, Volkswagen, Mercedes, Mini, and others.
Technical condition – ensure that components are free from damage, corrosion, and cracks.
Compliance with emission standards – ensure that the selected parts meet current legal requirements regarding emissions.

Selecting parts by OEM number, engine version, and mountings

Selecting exhaust parts should be based on the OEM number, engine code, body version, and the layout of mounting points. A catalytic converter, silencer, or exhaust pipe may differ in connection diameter, housing shape, hanger position, and sensor connector type. In the case of parts such as used catalytic converters, it is safest to compare the manufacturer's number, sensor placement, and compliance with the emission standard intended for the specific car version.

Characteristics of heat shields and mounting elements

A heat shield is an element mounted above or next to the exhaust, designed to limit the penetration of high temperatures to the floor, hoses, and adjacent components. It serves to protect bodywork components and installations running near hot parts of the system. When selecting, one must pay attention to sheet metal stampings, bolt points, and chassis compatibility, similar to the Bodywork, mountings, and accessories group. Assembly is supported by clamps, bolts, flanges, and rubber hangers, which are responsible for stable suspension of the system.

To facilitate part selection, below is an example compatibility and wear symptom table

Component	Typical wear symptoms	Application / compatibility
Silencer	Louder engine operation, metallic vibrations	Many BMW, Audi, VW models
DPF filter	Power loss, engine error message	Diesel engines, Euro 5 and Euro 6
Lambda sensor	Higher fuel consumption, uneven engine operation	Petrol and hybrid types depending on version
Catalytic converter	Characteristic exhaust smell, power loss	Vehicles with Euro 3 emission standard and higher

Why is it worth choosing used exhaust and emission control parts?

Used car parts are a good solution that allows for savings while maintaining high quality. By choosing used exhaust systems and emission control parts, you gain:

Lower costs – used components are significantly cheaper than new ones but offer equally high quality.
Ecology – you support recycling and reduce the amount of automotive waste.
Wide selection – in our store, you will find components for the most popular car brands.

How to take care of the exhaust and emission control system?

To ensure the exhaust and emission control system works efficiently for years, it is worth remembering a few rules:

Regularly check the condition of the DPF filter and catalytic converter – their clogging can reduce vehicle performance.
Keep exhaust pipes clean to avoid corrosion.
Avoid short trips, which can cause underheating of the exhaust system and its components. In case of damage or wear of elements, at Global Parts you will find suitable used auto parts that will restore full functionality to your exhaust system.

FAQ

Question	Answer
What is the construction and purpose of exhaust and emission control systems?	Exhaust and emission control systems are a set of elements leading exhaust gases from the engine to the final section of the exhaust. They consist of, among others, the manifold, pipes, silencers, catalytic converter, filters, sensors, and mounting parts. Their task is to discharge gases, reduce noise, and reduce the emission of harmful substances. Individual elements are located in the engine compartment and under the vehicle floor.
What are exhaust and emission control systems used for?	Exhaust and emission control systems are used for the safe discharge of exhaust gases and to improve engine operating conditions. They limit noise, support proper gas flow, and help meet emission standards. Without their proper operation, control unit errors, increased fuel consumption, and power loss may occur. In practice, they also affect the car's refinement and the durability of cooperating components.
What is the construction and function of an exhaust heat shield?	An exhaust heat shield is an element usually made of profiled sheet metal, mounted near hot exhaust parts. It serves to limit the impact of high temperatures on the body floor, hoses, and mounting elements. Its construction includes stiffening ribs and holes for bolts or clips. Depending on the model, it works with chassis tunnels, the catalytic converter, the silencer, or the particulate filter.
How to choose an exhaust part for a specific car?	It is best to compare the OEM number, engine code, body version, and mounting location. It is also worth checking the connection diameter, the number and position of hangers, the type of sensor connector, and whether the car is pre-facelift or post-facelift. For parts responsible for emissions, compliance with the appropriate emission standard also matters.
What symptoms indicate wear of exhaust and emission control elements?	Typical symptoms include louder engine operation, metallic vibrations under the floor, power loss, higher fuel consumption, or an engine error light. In case of leaks, an exhaust smell may appear, and with DPF or catalytic converter problems, also reduced performance. It is worth noting whether the symptoms occur on a cold engine, during acceleration, or during filter regeneration.
Which cooperating elements should be paid attention to during assembly?	During assembly, the condition of gaskets, clamps, flanges, bolts, rubber hangers, and heat shields should be assessed. Hoses and sensors should also be checked, as a damaged connector or connection leak can cause incorrect readings. After replacement, it is important to properly align the entire system so that it does not transmit vibrations to the bodywork.

Summary: exhaust and emission control systems at the Global Parts automotive store

Exhaust systems and emission control systems are the foundations of modern vehicles, combining ecology, efficiency, and driving comfort. By taking care of their technical condition, you ensure reliability and compliance with applicable emission standards. At Global Parts, you will find an offer tailored to cars from brands such as BMW, AUDI, Volkswagen, Mercedes, Mini, and others, and you can base your selection of the right component on the OEM number, engine version, and mounting location. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to visit our automotive blog.

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