
2015 — 2017
4.0L V8 TFSI (DDTA) - S8 Plus
Petrol
Test drive task: Gently accelerate from a stop and listen for any hesitation or surging in the transmission. | Note: While the 8-speed ZF transmission is robust, minor shift quality issues can sometimes indicate that a fluid and filter service is due, which is common in high-torque applications of this age.
Check this by: Cycling through all suspension height modes while parked on level ground. | Note: The adaptive air suspension is highly capable, but it is worth ensuring the system levels the car without extended delays, as the air struts can naturally experience wear in vehicles of this vintage.
Test drive task: When the engine is warm, observe the exhaust note for any rattle or unusual ticking at idle. | Note: The 4.0L V8 is a masterpiece of engineering, but it is common practice to check for healthy engine operation as these twin-turbo units have complex cooling and lubrication systems.
Check this by: Inspecting the coolant reservoir and the area around the 'V' of the engine for any signs of staining or dried residue. | Note: It is worth keeping an eye on the cooling system's integrity, as heat cycles in high-performance engines can eventually lead to brittle hoses or gasket wear over time.
Consider a full transmission fluid and filter service to ensure continued smooth shifting.
Typically the time to inspect the cooling system components and potential vacuum line integrity.
A common point to review the condition of the brake rotors and pads, particularly for performance-oriented driving.
Prioritize oil changes every 10,000km or annually to keep those twin turbos in peak condition.
Keep a close eye on your brake fluid health as it absorbs moisture over time in NZ's climate.
Regularly clean the front air intakes to ensure the radiators are getting optimal airflow for cooling.
Ensure the MMI software and navigation maps are updated to keep the car's tech current.
Verify that the battery is healthy, as these cars have advanced electronics that prefer a strong, stable charge.
Estimated repair costs if issues arise
If you notice the car sits lower on one corner after sitting overnight, you might eventually need to budget for strut maintenance to keep that famous Audi ride quality.
Given the heat generated by the 4.0L V8, it is wise to keep a little extra aside for potential preventative maintenance on coolant line seals if you notice any minor seepage.
The S8 Plus carries significant performance; if the current brakes are reaching the end of their life, budget for high-quality components to ensure your stopping power remains world-class.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer