2021 BMW X5 xDrive40i, about 75,500 miles. There is a short metallic rattle after the first cold start of the day, then it disappears once the engine settles. Warm restarts are quiet. Where would you…
2024 Rivian R1S Dual-Motor, about 14,500 miles. On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pack is warm. Could this be charger-side va…
2021 Audi A6 Prestige, about 14,500 miles. For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and…
2018 Kia Optima EX, about 124,500 miles. There is a short metallic rattle after the first cold start of the day, then it disappears once the engine settles. Warm restarts are quiet. Where would you s…
For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and it drives normally. Has anyone chased some…
