Car Fix DIY Videos

►The BMW S85 V10 is one of the gnarliest sounding engines to ever leave the M-Division. They took inspiration from BMW’s then F1 team and put together an absolute screamer of a powerplant. With 500 horsepower on tap, the E60 M5 and E63/64 M6 were the kings of the performance luxury sedan and coupes. However, the S85 has a chronic issue that isn’t a quick fix. As with so many BMWs since the turn of the millennia, the S85 was built to be high revving and contained smaller bearings than might have been needed. Combined with a soft bearing material, the S85 has a penchant for destroying its rod bearings.

For the uninitiated, the rod bearings sit between the connecting rod and the crankshaft to provide a smooth and friction-free surface during operation. The connecting rods are bolted to a journal on the crankshaft. As the crankshaft rotates, so too does the journal inside the connecting rod. The bearing is there to interact with the oil and keep the crankshaft journal happy as it rotates inside the connecting rod. The original lead-based bearings were too susceptible to damage, as BMW later found out, and could wear out as early as 30,000-miles with a lead-footed driver. New Bi-Metal aluminum bearings were fitted to the engines in 2010 but by that time, five years’ worth of models had already hit the roads.

To BMW’s credit, they made the operating procedure of any S85 equipped very clear. The engine needed significant warm-up time before any sort of aggression could be applied, and a specific oil weight was required. Many owners ignored the warnings, but even those who did suffer from issues. Replacement is not a small job, as the entire bottom of the engine and many of the front ancillaries have to be removed. Just getting to the engine requires dropping the front subframe and all of the suspension attached to it. A dealership charges 55 hours to complete the job, and with the cost of parts, it can total well into the five-figure range.

Tackling the BMW S85 rod bearing replacement yourself is a very involved and critical job that can end with a destroyed engine if done wrong. However, with our kit and some instruction by Gareth, you’ll have all the instructions and parts for the job. Our kit comes with every part you’d need to tackle the job yourself, including the updated Bi-metal bearings.

Buy this BMW S85 rod bearing kit at FCP Euro here: https://www.fcpeuro.com/products/bmw-s85-comprehensive-rod-bearing-replacement-kit-11247841703kt2?utm_source=youtube&utm_medium=description&utm_campaign=mps%20bmw%20m6&utm_content=rod%20bearings

00:00 – Intro
02:46 – BMW S85 Rod Bearing Replacement Tools Needed
06:23 – BMW S85 Rod Bearing Replacement Job Start/Airbox Removal
08:54 – BMW S85 Rod Bearing Replacement Fan Removal
10:33 – BMW S85 Rod Bearing Replacement Undertray Removal
12:17 – BMW S85 Rod Bearing Replacement Lower Suspension Components Removal
16:53 – BMW S85 Rod Bearing Replacement Engine Support Procedure & Engine Mount Removal
18:03 – BMW S85 Rod Bearing Replacement Subframe Removal
22:01 – BMW S85 Rod Bearing Replacement Oil Drain
23:35 – BMW S85 Rod Bearing Replacement Oil Pan Removal

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