Were timing marks at on 1999 s70 Volvo?

Yes, the 1999 Volvo S70 has timing marks that are used to properly align the timing belt and ensure the engine's valves and pistons operate in sync. These marks are typically located on the crankshaft and camshaft pulleys, and they play a critical role during timing belt replacement or maintenance. Proper alignment of these marks is essential to avoid engine damage. Always refer to the vehicle's service manual for specific instructions and diagrams.