Question 1

What is the main purpose of the exhaust system?

Accepted Answer

The exhaust system is a system of pipes and components whose task is to remove and purify exhaust gases, reduce noise and support engine operation.

Question 2

What does exhaust gas purification system mean?

Accepted Answer

It is a set of components, such as a catalytic converter, DPF filter and EGR valve, whose task is to reduce harmful chemical compounds in exhaust gases and meet emission standards.

Question 3

What is a lambda probe used for?

Accepted Answer

The lambda sensor monitors the composition of the fuel-air mixture and sends data to the engine control unit, which allows for optimal combustion.

Question 4

How to recognize catalytic converter damage?

Accepted Answer

Symptoms include a loss of engine power, a check engine light and a characteristic exhaust smell.

Question 5

Does a DPF filter fit every diesel?

Accepted Answer

No, DPF filters vary in design and parameters. They must be matched to the make, model, and emissions standard (e.g., Euro 5, Euro 6).

Question 6

How often should a muffler be replaced?

Accepted Answer

Under normal operating conditions, an exhaust muffler can last up to 80,000–120,000 km, but its durability depends on the quality of the materials and driving style.

Question 7

Are the exhaust system parts used safe?

Accepted Answer

Yes, provided they are verified and come from a reliable source – just like in the Global Parts store, where each part undergoes quality control.

Exhaust systems and exhaust gas treatment