Audi TT Electrical and Infotainment Systems 5 — Questions and Answers
Question 1: How must an ammeter be connected to measure circuit current?
- In parallel with the load
- In series with the circuit (Correct answer)
- Across the battery terminals only
- Between ground and chassis
Correct answer: In series with the circuit
Current is measured by placing the meter in series so all current flows through it.
Question 2: On a standard ISO automotive relay, which terminals connect to the control coil?
- 30 and 87
- 85 and 86 (Correct answer)
- 87 and 87a
- 30 and 31
Correct answer: 85 and 86
Terminals 85 and 86 energize the coil, while 30 and 87 form the switched circuit.
Question 3: Why is extra caution required when servicing xenon headlights on an Audi TT?
- They operate on 6 V
- Their igniters produce extremely high voltage (Correct answer)
- They contain refrigerant
- They are fuse-free
Correct answer: Their igniters produce extremely high voltage
Xenon igniters generate very high ignition voltage that can cause serious injury.
Question 4: On the Mk2 and Mk3 TT, when does the electrically operated rear spoiler automatically deploy?
- Whenever the engine starts
- At around 75 mph (120 km/h) (Correct answer)
- Only when braking hard
- When reverse gear is selected
Correct answer: At around 75 mph (120 km/h)
The spoiler extends automatically at about 120 km/h and retracts at lower speed, and can also be raised manually.
Question 5: A voltage drop test on a ground circuit under load shows 1.2 V. What does this indicate?
- Normal reading
- Excessive resistance in the ground path (Correct answer)
- An open circuit
- Overcharging alternator
Correct answer: Excessive resistance in the ground path
A healthy ground should drop only a few tenths of a volt under load, so 1.2 V indicates high resistance.
Question 6: Which feature lets a TT owner mirror compatible smartphone apps on the virtual cockpit?
- Audi side assist
- Audi smartphone interface (Apple CarPlay/Android Auto) (Correct answer)
- Audi drive select
- Audi pre sense
Correct answer: Audi smartphone interface (Apple CarPlay/Android Auto)
Audi smartphone interface projects CarPlay or Android Auto apps onto the vehicle display.
Question 7: Which advanced headlight technology, available on the Mk3 TT, selectively dims LED segments to avoid dazzling other drivers?
- Halogen projector
- Matrix LED (Correct answer)
- Bi-xenon static
- Fog light assist
Correct answer: Matrix LED
Matrix LED headlights switch individual LEDs off to mask oncoming vehicles while keeping high beams on.
Audi TT Electrical and Infotainment Systems 5
How must an ammeter be connected to measure circuit current?