Common Audi TTS trouble spots depend heavily on the generation. On the older 8J, check the high-pressure fuel-pump cam follower, timing-belt and water-pump history, ignition components, carbon build-up and oil consumption. On the newer 8S, coolant leaks around the water-pump or thermostat housing are a key inspection item. Across both generations, neglected S tronic and quattro coupling servicing can lead to rough shifts or rear-wheel-drive engagement faults. Magnetic Ride dampers may also leak or fail and can be expensive to replace. Before buying, scan the car for stored fault codes, test it from cold, check for coolant loss and uneven shifting, and confirm the engine, gearbox and quattro service records. The exact risk profile depends on model year and engine code.
奧迪 TTS 嘅常見檢查位會因應代數而有分別。較舊嘅 8J 要留意高壓油泵凸輪頂筒、正時皮帶同水泵更換紀錄、點火系統、積碳同食機油情況；較新嘅 8S 就較應留意水泵或節溫器殼有冇滲漏冷卻液。兩代車如果 S tronic 波箱同 quattro 四驅系統保養不足，可能出現轉波唔順、異響，或者後軸驅動介入異常。Magnetic Ride 磁流變避震亦要檢查有冇漏油、警示燈或阻尼失效，維修成本通常唔低。買二手車時最好凍車啟動、電腦讀故障碼、試齊各個波段，再核對引擎、波箱、四驅系統同冷卻系統嘅保養紀錄；實際風險要按年份同引擎編號判斷。
