S54 Connecting Rod Bearings

Detailed service action repair instructions can be found on the cd rom sip s54 connecting rod bearings replacement which was included in the oil pump kit with connecting rod bearings p n 11 41 0 301 359 used for the previous m3 engine campaign 356 si b11 02 03.

S54 connecting rod bearings.

S54 engines up tp 02 2003 production use the m11 bolts. The xp series is a line of bearings with advanced metallurgical and geometric technologies that meet extreme performance loads. As great and powerful as bmw made the s54 engine they left it lacking in a critical area it s rod bearing reliability. Car exhibited no signs of bearing wear before the event had good oil.

Unfortunately the s54 used in e46 m3 and mz3 4 cars was released with a rod bearing problem in earlier 2001 2003 model years which often leads to failure. Available in standard size and std x with additional oil clearance as well as 0 025mm and 0 25mm oversizes. But the problem is much more likely to happen in the s54 s65 and s85 for a few specific reasons. To supply the highest quality bearings available in the marketplace.

Connecting rod bearing failure is catastrophic on any engine and will typically leave the vehicle in need of a complete replacement engine. For s54 s there s also a spray of oil into the bottom of the piston for cooling. 2005 e46 m3 98k miles. That also means plenty of oil splashing around.

King racing xp series big end connecting rod bearings for the bmw s54b32 engine. The wrist pins connecting the pistons to the connecting rods are lubricated by oil splashing around. While our s54 rod bearing widening solution is a great way to save engines that have already spun a bearing we believe the s54 engine will run a long time on stock bearings if the proper maintenance is performed. The mighty and powerful bmw s54 has an achilles heel it s rod bearings.

Pressurized oil flows up to the connecting rod bearings from the main bearings. Oil changes at low intervals along with replacing rod bearings pre preemptively will lead to a long living engine. Our s54 treated rod bearing upgrade kit for late model engines 02 03 is the ideal solution for one of the only drawbacks of the legendary s54 motor. For another engine it might be the rod or the cylinder wall or something else.

King engine bearings was founded in 1960 with one simple objective. First time at circuit of the americas also first dry session. For the s54 this is the rod bearing. We have seen these types of failures in a wide variety of engines from subaru ejs to newer bmw s63s.