BMW Drive Belts & V-Belts for BMW X Series E70 (2007-2013)

Introducing our Turner Motorsport Crank Seal Guard – the essential shield for your BMW's engine integrity. Safeguarding the heart of your vehicle, this meticulously designed guard offers robust protection for the crank seal concealed behind the harmonic balancer.

Considered an indispensable maintenance component for your BMW, the Crank Seal Guard acts as a crucial defense against a potential and preventable catastrophe involving your accessory belt. Facing the reality of potential oil or coolant leaks in your engine, this guard becomes a reliable barrier, preventing these fluids from reaching the accessory belt. The consequence of a compromised belt includes walking, slipping, fraying, and rubber particles finding their way behind the harmonic balancer and into the crank seal – a scenario that can lead to severe engine failure.

Let's be honest, engine leaks are a common occurrence, and whether your engine is currently leaking or not, the Crank Seal Guard is a proactive measure against future threats. The wear and tear on the accessory belt due to oil and coolant exposure can result in slipping, tearing, or, worst-case scenario, belt snapping – posing a significant risk to your engine's well-being.

Prepare your car for the long haul and protect the vital components, It's not a matter of "if" but "when" your belt will become a problem, and our Crank Seal Guard is your proactive solution. Rigorously tested on N52/N54/N55 and S55 for 100% confirmed fitment, it stands as a reliable guardian for your engine's health. Invest in the protection your BMW deserves with the Turner Motorsport Crank Seal Guard.

Key benefits:

Protect crank seal from rogue accessory belts and their shredded debris
Optimized to fit N52, N54, N55, and S55 engines
Rigid design that fits within the space constraints between the engine block and harmonic balancer
Zinc-coated fasteners for corrosion and oxidation resistance
Design:

Modeled and designed from FARO laser scanning and Solidworks CAD
Manufactured from 6061 billet aluminum
Turner blue anodizing
Installation:

It is a good idea to note how your belt is routed before starting the installation.

2 securing bolts for crank seal guard - Torque value of 20Nm

You will find either 6 or 8 E10 bolts are holding the harmonic balancer depending on the engine.

E10 (P#11237564511) ​
​N52: 6 bolts - Torque value of 25nm
N54: 6 bolts - Torque value of 35nm
N55: 8 bolts - Torque value of 35nm

E10 (P#11237575488)
S55: 8 Bolts - Torque value of 35nm

BMW M57 Diesel Crank Pulley Turning Tool is essential for precise handling and adjustment of the crankshaft pulley in BMW diesel engines, including the N47, N57, and M57 models. This high-quality tool ensures accurate turning of the crankshaft pulley, facilitating easier maintenance and repairs.

• Precision Engineering: Designed specifically for BMW M57 diesel engines for accurate pulley adjustment.
• Compatibility: Fits various BMW diesel engines including N47, N57, and M57 models.
• Durable Construction: Built to withstand the demands of automotive maintenance and repair.
• Enhanced Efficiency: Simplifies crankshaft pulley turning, making engine service tasks more straightforward.

For a comprehensive tool kit, search for T#23913947.

Certain alternators necessitate the use of a splined wrench to secure the alternator in place, with the splined end providing a firm grip for turning. This specialized tool enables you to effortlessly grasp and remove the alternator without the need for additional tools during the process.

Features:

• 1/2" drive
• T50 Torx bit end locks the alternator in place while the splined sleeve goes into the pulley for a strong grip that allows you to turn it.
• Services  1998-present day Mercedes-Benz, including 606 (W210), 648 (W211, W164), 642 (W211, W164), as well as Mercedes E300 (1996-1999)
• T50 Torx bit can also be used on engines such as the M57 but will need another piece, such as a pass-through socket, to hold the alternator in those engines. See ES#4743294

Is your BMW making a chirping or grinding noise at idle? The culprit is frequently a failing alternator decoupler pulley. Unlike a traditional solid pulley, this Overrunning Alternator Pulley (OAP) allows the alternator rotor to "freewheel" when engine speeds drop suddenly. This specialized function protects your BMW drive belt and belt tensioner from excessive snap-back, vibration, and "belt slap."

Prevent Catastrophic Engine Failure

Over time, the internal clutch mechanism can seize or slip, leading to accelerated wear or total serpentine belt failure. On BMW engines, a snapped belt can be ingested through the front main seal, causing catastrophic engine damage. Replacing this pulley is a cost-effective preventative maintenance step that restores smoothness to your accessory drive without the high cost of a complete alternator replacement.

Features & Benefits:

Lowers the load on the drive belt, tensioner, and AC compressor.
Stops "belt slap" and rhythmic chirping noises during deceleration and idle.
Direct Replacement with high-quality construction ensures perfect fitment and long-term durability.
Essential Maintenance for N52 engines