AUDI Repair & Maintenance 2 — Questions and Answers
Question 1: When replacing brake fluid on an Audi with an electronic parking brake (EPB), what must be done before compressing the rear caliper pistons?
- Manually retract pistons using the bleed screw
- Use an EPB service mode via scan tool to retract the caliper (Correct answer)
- Disconnect the EPB motor connector and compress manually
- Remove the EPB actuator before compressing the piston
Correct answer: Use an EPB service mode via scan tool to retract the caliper
Audi EPB calipers require scan tool activation of service/retract mode to electrically retract the piston before brake work.
Question 2: Which Audi-specific tool is required to properly align the front subframe during reassembly after engine removal?
- T10096 subframe alignment pins (Correct answer)
- VAS 5051 centering mandrel
- T40011 camber gauge
- 3369 subframe spreader bar
Correct answer: T10096 subframe alignment pins
T10096 alignment pins locate the subframe to the body in the factory position, ensuring correct geometry after reinstallation.
Question 3: An Audi 2.0T TFSI shows excessive oil consumption. After confirming PCV is functional, what is the next most likely cause?
- Failed turbocharger inlet hose
- Worn piston rings due to ring land carbon buildup (Correct answer)
- Cracked valve cover gasket
- Overfilled engine oil level
Correct answer: Worn piston rings due to ring land carbon buildup
The EA888 2.0T is known for carbon deposits on the piston ring lands causing ring sticking and oil burn.
Question 4: What is the correct procedure for resetting the service interval indicator on most Audi models after an oil change?
- Disconnect the battery for 30 seconds
- Hold the 0.0/SET button while cycling the ignition
- Use the MMI menu: Car > Service & Checks > Reset Service (Correct answer)
- Press brake pedal 5 times within 3 seconds of key-on
Correct answer: Use the MMI menu: Car > Service & Checks > Reset Service
Audi's MMI-equipped models reset the service reminder via the Car Settings menu under Service & Checks.
Question 5: When performing a timing belt replacement on an Audi 1.8T engine, which component is always recommended to be replaced at the same time?
- Crankshaft position sensor
- Water pump, tensioner, and idler rollers (Correct answer)
- Camshaft seals only
- Oil pump drive sprocket
Correct answer: Water pump, tensioner, and idler rollers
The water pump is driven by the timing belt, and its failure interval matches the belt; replacing it prevents a second teardown.
Question 6: An Audi A4 B8 develops a clunk from the rear suspension over bumps. Which component is the most common cause on this platform?
- Rear sway bar end links
- Rear trailing arm bushings (Correct answer)
- Rear subframe mounting bolts loose
- Control arm ball joints
Correct answer: Rear trailing arm bushings
The rear trailing arm (trapezoidal) bushings on the B8 platform are a well-documented wear item that causes clunking over bumps.
Question 7: What does Audi's Long Life service interval (WIV) system primarily measure to calculate oil change intervals?
- Mileage only, capped at 10,000 miles
- Engine oil viscosity degradation via a sensor
- Driving conditions, engine load, temperature, and mileage (Correct answer)
- Fuel consumption rate over time
Correct answer: Driving conditions, engine load, temperature, and mileage
Audi's WIV (Wartungsintervall-Verlängerungssystem) calculates service intervals using multiple parameters, not just mileage.
AUDI Repair & Maintenance 2
When replacing brake fluid on an Audi with an electronic parking brake (EPB), what must be done before compressing the rear caliper pistons?