Audi A5 useful guides
Lubrication
What is the purpose of the motor oil of your A5?
What engine oil does your A5 need?
When do I have to change the motor oil of my A5?
How much motor oil does your A5 need?
Transmission fluid
What is the transmission fluid of your A5, and when should you change it?
When should you change the differential fluid of your A5?
How much transmission fluid does my A5need?
What kind of transmission fluid does your A5 take?
OBD codes
What is the error code OBD II P0106?
Symptoms of your A5‘s error code P0340
Electrical system
How to test your A5‘s battery, step by step
How do I start my A5 with a dead battery?
Air conditioner
Which refrigerant do you need for the air conditioner of your A5?
How does the air conditioner of your A5 work?
Why is the air conditioner of my A5 not working properly?
Other guides
Booster seats for children in your A5: all you need to know
How to keep your A5 safe during extended periods without use
What do the technical specifications of your A5’s engine mean?
What should you check on your A5 before a road trip?
What is the IAC valve of your A5?
Exhaust smoke and its colors on an A5: causes and severity
What styles of car bodies exist?
What is a fuse and what types can you find for your A5?
What light bulbs fit your A5?
Spark plugs
What kinds of spark plugs are there?
What kind of spark plugs does your A5 need?
What are spark plugs?
How do I change the spark plugs of my A5?
Maintenance
What is the timing belt on an A5?
What filters exist in your A5 and when should you replace them?
What is the serpentine belt of your A5 and when should you change it?
What is brake fluid and which one should you use for your A5?
Warning lights
Why is the oil light on?
Why does your A5’s engine overheat? Causes and solutions
What is the immobilizer on an A5? Why does it fail?
What does the check engine light of your A5 mean?
What does the EPC (Electronic Power Control) light mean on an A5?
Fuel
What is the fuel octane rating?
How to improve the fuel consumption of your A5
Which type of fuel should you use in your A5?
What are biofuels?
What types of fuel exist?
Steering fluid
What power steering fluid does your A5 need?
How to change the power steering fluid of your A5?
Wheels
What kind of information is engraved in the tires of your A5?
How to rotate the tires of your A5?
What is the right tire pressure for your A5?
How to change one of your A5‘s wheels?
Sensors
What is the Throttle Position Sensor (TPS) of your A5?
What is the MAP sensor of your A5?
What is the oxygen sensor (or lambda sensor) of your A5?
Airbags
How do your A5‘s airbags work? What precautions should you take with them?
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