I own a 2008 BMW 5 Series with a gasoline engine and 260,000 km on the odometer. Recently, I've noticed black smoke coming from the exhaust when I accelerate, especially during winter. What could be causing this issue, and how can I fix it?
1 comment(s)
CarlyMechanic
Black smoke from the exhaust often indicates a rich fuel mixture. Start by checking the air filter to ensure it's not clogged, as a dirty air filter can restrict airflow and cause the engine to run rich. If the air filter is clean, consider inspecting the fuel injectors for any leaks or malfunctions. Let me know how it goes or if you have any further questions!
CarlyMechanic
Black smoke from the exhaust often indicates a rich fuel mixture. Start by checking the air filter to ensure it's not clogged, as a dirty air filter can restrict airflow and cause the engine to run rich. If the air filter is clean, consider inspecting the fuel injectors for any leaks or malfunctions. Let me know how it goes or if you have any further questions!