When it comes time to service your timing system, take the guesswork out by choosing one of our pre-made kits. These include everything you will need to do the job properly and completely the first time.
Over time, timing chains can begin to stretch and tensioners can wear out or seize. This leads to slack in the chain, which can cause the chain to slip. A slipping chain is often a death sentence for N55/S55 engines as these are interference engines, resulting in damaged pistons, valves, and other sensitive engine components. If your engine has higher mileage, it is worth it to replace your chain and tensioner for peace of mind. We also recommend picking up timing chain guides as the plastic guides used by BMW are known to wear down and become weak.
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The M20 engine's timing belt should be replaced every 50,000 miles. BMW calls out a 60,000 mile interval, but there are numerous reports of belts slipping or snapping before this interval is up. We recommend performing this service with INA's timing belt and tensioner roller kit, which includes the two most common wear items in the timing system.
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Maintain your BMW M’s legendary performance with the INA Engine Timing Set, providing factory-level precision and durability for long-lasting engine health.
