The rod bearings had a few design flaws but bmw offered these under warranty and by 2020 most of these should have been replaced by now.
S54 rod bearing kit.
As great and powerful as bmw made the s54 engine they left it lacking in a critical area it s rod bearing reliability.
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.
Bmw s54 rod bearing service bulletin.
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.
One of the top jobs on our list was to inspect the rod bearings for wear and replace them if necessary.
Again most of the problematic rod bearing should have failed or been replaced by now.
The mighty and powerful bmw s54 has an achilles heel it s rod bearings.
This even includes s54 s produced after may 22 2003 which should not have been problematic.
This is a pretty cheap 200 diy but might run you.
Oil changes at low intervals along with replacing rod bearings pre preemptively will lead to a long living engine.
However there are still reports of other rod bearing failures.
Vac performance coated rod bearing kit late model m10.
That s because the s54 m3 engine is plagued by rod bearing wear issues so much so that there was a recall from bmw to replace the bearings on early 01 to mid 03 model year e46 m3s like ours.
S54 engines after 02 2003 production and later use the m10 bolts.
This situation is also what makes me a bit uneasy about the common suggestion that a coated rod bearing is a great solution on the s54.
Ships free qty 607 65 oe bmw connecting rod bearing set glyco 7134196std 323ci 323i 323is 325 325ci 325e 325es more 1 reviews available in stock.
The bearings feature pmax black a unique tri metal.
King racing xp series big end connecting rod bearings for the bmw s54b32 engine.
If a coated bearing is adding material to a rod bearing then obviously it must also be reducing the bearing clearance on the crankshaft journal.
Some rod bearing treatments are designed to allow the bearing.
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.
Main bearings king racing for engines.
This pretty much only affects 2000 2003 s54 engines.
Available in standard size and std x with additional oil clearance as well as 0 025mm and 0 25mm oversizes.
Per usual on bmw s the s54 water pump fails every 100 000 miles or so.
The xp series is a line of bearings with advanced metallurgical and geometric technologies that meet extreme performance loads.
