Packaged by Turner BMW Engine Parts

When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

On M52/S52-equipped BMWs, the factory crankcase ventilation (CCV) system is a notorious weak link. Between brittle plastic corrugated hoses that crumble from heat soak and an internal cyclone diaphragm prone to tearing, a failing CCV leads to massive oil consumption, vacuum leaks, and that dreaded "howling" whistle.

This kit addresses these issues with all new components and hardware. Both oil separator hoses, the cyclone separator itself, the mounting grommet, and the retaining bolts are included. Servicing this system is guaranteed to restore performance lost as a result of worn CCV components.

Kit includes:

Cyclone Separator/Crankcase Pressure Regulator Valve High Performance Silicone Breather Hose Return Hose Mounting Grommet Hex Bolt (3)

Upgrade your stock oil cooler thermostat for improved performance. Swap out your existing cover with ease, replacing it with a durable billet cover. Upgrade from your 110-degree Celsius thermostat to a new 70-degree Celsius version for faster oil flow and extended temperature control. With oil temperatures reaching 230 degrees Fahrenheit by the time your factory thermostat opens, initiating oil flow at lower temperatures proves more effective than attempting to cool down already elevated temperatures.

Utilizing a factory-style thermostat, this upgrade can be used in all weather conditions and allows your engine to warm up properly unlike thermostat bypass kits.

Kit contents:

Billet thermostat housing cover
Replacement gasket
Hardware
Lower temperature thermostat - 70c (158F) vs Factory 110c (230F)
Low temp thermostat spring

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

Rod bearings should be replaced as a preventative measure before 80,000 miles. This package is the most complete rod bearing overhaul kit available and includes not just the latest BMW rod bearings and connecting rod bolts, but also everything else that should be replaced with the oil pan and front subframe off the car.

Rod bearings continue to be a sore subject among M3, M5, and M6 owners. The rod bearings in the S85 V10 have been known to fail within 60,000 miles. There could be a number of reasons for premature failure with a lot of finger-pointing as to the real cause. Whatever the reason, rod bearings are wearing out sooner than expected and their replacement should be considered a required preventative maintenance item. We suggest a replacement interval of between 60,000-80,000 miles with frequent engine oil analysis done along the way*. Driving moderately and allowing the engine to warm up before hard use will also extend rod bearing life.

After doing so many rod bearing replacements in our own service shop we have put together this comprehensive overhaul package. Our package includes -

Genuine BMW rod bearings
- 11247841703, upper bearings - latest design from BMW (either original or WPC treated**)
- 11247841702, upper bearings - latest design from BMW (either original or WPC treated**)
- 11247834522, connecting rod bolts
- Red Line engine assembly lube

Oil Pan
- 11137836361, oil pan gasket
- 07119905485, oil pan screws (required by BMW)
- 07129905600, oil pan screws (required by BMW)
- 11137836568, oil pan screws
- 07119963129, seal washers
- 11417836233, auxiliary oil pump gaskets
- 11121304174, oil pickup tube o-ring

Replacing the rod bearings requires mechanical knowledge and skill, a clean workspace, and several specialist tools. Our preferred procedure is to leave the engine in the car but remove the front subframe. The engine must be supported from above with an engine brace. Removing the front subframe involves disconnecting the control arms and steering rack and steering column. The oil pan can then be removed and you can access the connecting rods and bearings. Replacing the rod bearings themselves is straightforward but patience and forethought will be extremely helpful. In addition to analyzing the severity of the rod bearing wear, the crankshaft must also be inspected closely for damage. Rod bearings that have been severely worn may have damaged the crankshaft (requiring replacement or machining).

* BMW released an updated rod bearing around 2011 that uses different materials than the original design. The old rod bearings were constructed with several layers or metal, including copper and lead. If an engine oil analysis revealed high levels of these specific metals then it was a sure sign that the rod bearings were nearing replacement. However, the new BMW bearings do not use copper or lead so an oil analysis will not alert you to heavy bearing wear. The new bearings are also a harder material which prolonged the life of the bearing but increased the liklihood of crankshaft damage if a bearing failed. Even though the bearing theoretically lasts longer it's even more important to preventativly replace them before they damage the crankshaft.

** These WPC-treated bearings are the best we have seen for the S85. WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are factory BMW bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

***BE Bearings is another top pick when considering which bearing kit to choose. Working with Clevite, an OE bearing supplier, their design allows for a bit more clearance than stock, allowing better oil circulation and reducing friction. The material is also made from the original bearing composition of lead-copper, not the updated tin-aluminum used in factory BMW bearings which was excessively hard, potentially damaging the crankshaft when high friction occurred. This softer metal composition can also be tested for via oil analysis, allowing you to see high bearing wear, something the tin-aluminum bearings don't give you the ability to do.

Internal VANOS Pressure Line
One of the VANOS oil lines runs along the inside of the timing chain cover and into the oil pan. It can only be replaced with the oil pan removed. If you have sluggish performance or VANOS fault codes this is one of the common causes and now is the perfect time to replace it. If it fails down the line the oil pan will have to be removed again.

Front Subframe Hardware
Our preferred procedure for accessing the engine block is by disconnecting the control arms and steering rack and then removing the front subframe altogether. This hardware is not required but may be a good idea, especially if your original subframe bolts are rusty. Hardware includes:
31106760222, front subframe mounting bolts
31106770256, front subframe mounting bolts
33326760668, front wishbone collar nut

Tie Rod Boots
32106765782, tie rod boot kit

Motor Mounts with Hardware
22116762607, left motor mount
22116762608, right motor mount
07129904088, motor mount bolts
07129904865, motor mount nuts

Engine Oil Change
Liqui Moly GT1 10w-60 engine oil
11427840594, OEM oil filter.

This package fits the following BMWs:
2006-2010 E60 BMW M5
2006-2011 E63 BMW M6