What are the reasons for unstable starting and stalling of Audi A4L?

1 Answers
NicoleMarie
07/29/25 5:07pm
The reasons why a car stalls immediately after starting are as follows: Fuel quality issues: This is the simplest to check, just change the fuel type or refuel at another location. Excessive carbon buildup in the throttle body: This is the main cause of problems such as unstable idling and stalling. Go to a professional repair shop or 4S store to clean the throttle body. Low fuel pump pressure or malfunction: It is easy to cause stalling due to insufficient fuel supply. Thick engine oil: Due to the vehicle being parked for a long time, the engine oil becomes thick, causing stalling. This phenomenon is not a big problem, just warm up the car after ignition. Note: Avoid leaving the car idle for a long time, especially before reusing it, be sure to do a thorough inspection and maintenance. Regular maintenance is also crucial, and it is often necessary to check whether the fuel and electrical circuits are unobstructed.
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