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Home >> Porsche >> 2016 >> Macan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 418 (Exhaust System - INGENIUM I4 2.0L Petrol -- Discovery Sport/L550) >> Exhaust System - INGENIUM I4 2.0L Petrol >> Diagnosis And Testing >> Exhaust System >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM POSSIBLE CAUSES ACTION
Exhaust excessively noisy
  • Exhaust system leaking
  • Exhaust system fouling body, transmission, etc
  • Check the exhaust system for leaks. Rectify as necessary
  • Check the exhaust system for foul conditions. Rectify as necessary
Engine performance reduced
  • Exhaust system restricted/blocked
  • Catalytic converter blocked or damaged
  • Fuel system fault
  • Ignition system fault
  • Engine system fault
  • Check the exhaust system for restrictions and blockages. Rectify as necessary
  • Check the catalytic converter for blockage or damage. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel system. Rectify as necessary
  • Refer to the relevant section of the service information and check the ignition system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index