BMW Timing Chain Tensioner - INA 11317531813

Product Information

This INA lower timing chain tensioner is an OE-grade replacement designed to maintain proper chain tension in BMW engines. Mounted within the timing cover, it can be replaced without full disassembly, making it a convenient yet critical component in engine maintenance. If your engine produces chain noise at startup, this tensioner is often the primary cause.

Timing chain tensioners serve a vital role in keeping the engine's timing components synchronized by preventing slack in the chain. Excess slack can lead to severe mechanical damage or complete chain failure. INA, a trusted OEM supplier, ensures this unit delivers precise fitment and long-lasting reliability.

Common symptoms of timing chain tensioner failure include:

• Rattling or Clanking Noise: Especially noticeable at cold start when oil pressure is low, due to the tensioner not maintaining adequate chain tension.
• Check Engine Light: Timing errors may trigger camshaft or crankshaft correlation codes as detected by engine sensors.
• Potential Engine Damage: In interference engines, incorrect timing caused by tensioner failure can result in piston-to-valve contact, leading to serious internal damage.