What are the reasons for the sudden occurrence of many faults in the Tiguan?

[Gutierrez]

The reasons for the sudden occurrence of many faults in the Tiguan may include poor engine system performance, damaged sensors, or inadequate engine maintenance. Poor engine system performance: Fault lights may illuminate due to poor engine system performance, such as faults or poor contact in the throttle pedal sensor, throttle position sensor, air flow meter, crankshaft position sensor, etc. Damaged sensors: Poor contact or signal interruption. The car's ECU cannot accurately obtain engine data, causing the engine fault light to illuminate. Inadequate engine maintenance: This is the most common reason for the engine fault light to illuminate. The engine has specific requirements for oil quality indicators, especially as regulations for engines become increasingly stringent, leading to higher demands on oil quality indicators.