What are the risks of driving a vehicle with a leaking engine exhaust system?
- Engine over-heating.
- Correct answer: The penetration of burnt gases to the passenger compartment, which might cause loss of consciousness.
- It might harm nearby vehicles.
- There is no risk in driving a vehicle with a leaking emission system.
Why this is the answer
The correct answer in the official bank: The penetration of burnt gases to the passenger compartment, which might cause loss of consciousness.
Exhaust gases contain carbon monoxide, a poisonous gas with no colour or smell. If the exhaust system leaks, these burnt gases can enter the passenger compartment and cause dizziness, drowsiness and even loss of consciousness for the driver and passengers. Such a leak should be repaired immediately. It does not cause engine overheating and normally does not harm nearby vehicles.