Timing for BMW Z Series E85/6 (2003-2008)

The factory VANOS exhaust hub on the S54 engine is known to develop excessive play where the drive tabs interface with the oil pump disk. Over time, this imprecise fitment causes a back-and-forth rattling motion that can result in the tabs shearing off inside the engine, risking catastrophic damage or complete engine failure. Unlike other aftermarket solutions that require full VANOS disassembly, retiming, or replacement of the oil pump disk, the Turner Motorsport S54 VANOS Hub Upgrade offers a smarter approach. Our bolt-on fix eliminates the common failure point without opening the VANOS unit or disturbing engine timing.

Our solution involves removing the worn tabs from your stock exhaust hub and installing our precision-fit replacement, which is precision-machined from 4340 steel and hardened to meet OEM specifications. Designed using 3D scanning and CAD modeling, the Turner Motorsport VANOS Exhaust Hub Upgrade provides a tight, interference-free fit into the oil pump disc, completely resolving the issue without unnecessary labor.

Features & Benefits:

Direct bolt-on solution for S54 VANOS oil pump drive tab failure, preventing potentially catastrophic damage to engine internals Precision-machined from high-strength 4340 steel and heat-treated to match OEM specifications Designed using 3D scanning and CAD modeling to ensure precise fitment within the OEM oil pump disc Engineered to eliminate the play that exists between the exhaust hub and oil pump disc from factory Backed by extensive real-world testing and our lifetime replacement program!

The VANOS system on your N51, N52, and N54 engine controls the valve timing inside the engine. The system is hydraulically operated based on instructions from the engine computer. It's very complex and BMW has not yet perfected the system. The VAN0S solenoid is the actuator that takes instruction from the ECU and activates the VANOS unit on the front of the engine. When the solenoid is failing (or failed) you can end up with a rough running engine, misfires, bad fuel economy, lack of power, and more. It should trigger multiple fault codes and a check engine light for misfires, camshaft control, VAN0S solenoid, boost pressure control, and maybe others. It's important to thoroughly troubleshoot fault codes but VAN0S solenoids are a known issue with these engines.

The VANOS solenoids are located on the front of the engine and may be replaced without removing many other components. In some cases, you may be able to remove the suspect one, clean it, reinstall, and reset your fault codes. If your fault codes come back it's a strong indication that a replacement is required. Or you can buy the new solenoid and replace instead of doing the work twice.

VANOS solenoid for the intake and exhaust are the same part number. Order 2 if you want to replace them both.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

We recommend replacing the solenoid sealing gaskets as well when replacing the solenoid. You can find these under T#363393

This item fits the following BMWs:
2008-2012 E82 BMW 128i 1M Coupe
2008-2010 E82 BMW 135i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335is - Sedan
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335is - Coupe
2007-2010 E92 BMW 335i 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
2007-2010 E93 BMW 335i - Convertible
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive
2011 F10 BMW 528i
2006-2010 E83 BMW X3 3.0i X3 3.0si
2007-2013 E70 BMW X5 3.0si
2006-2008 E85 BMW Z4 3.0i Z4 3.0si
2009-2011 Z4 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

Feeds oil to the VANOS unit from the oil filter housing.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Fits the following BMW engines:
M52, S52, M54

Replace your old, leaking VANOS oil pressure feed line to restore proper function and prevent potential failure.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Genuine BMW Pressure Hose Assy
This item fits the following BMW Chassis:
E46 M3,E85 Z4M

Fits BMW Engines including:
S54

This solenoid works with the VANOS engine timing system to improve horsepower and torque throughout the RPM range.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Genuine BMW Solenoid Valve (Solv) -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M52,M54,M56

VAC's S54 Vanos Hub is designed as a direct replacement for the fragile BMW OE Vanos Hub which typically fails due to a broken drive pin. The VAC Hub has an Upgraded Drive Pin design, which is larger in diameter, as well as more material on the outside wall of the pin. In addition, the hub is made from 4340HT Billet Bar and heat treated to the same BMW OE Rockwell Hardness spec. The upgraded design is not only significantly stronger, but the larger diameter Drive Pins also minimize the huge clearance (approximately 1mm) that was in the original design by BMW and reduces the clearance to 0.2mm. This is critical in helping greatly reduce or eliminate the VANOS noise.

Also, this upgraded design eliminates the need for modifying the Pump Ring or having to buy a replacement, which further saves you money!!!

If your N52 engine is running rough, is low on power, or you are getting check engine lights for timing related issues, there is a good chance that you have a faulty VANOS component. The two most common parts to fail are the Camshaft Adjusters and VANOS Solenoids.

This repair kit from Vaico includes all of the basic parts necessary to service the VANOS system and restore smooth engine operation.

Included:

Intake Camshaft Adjuster w/ Impulse Wheel

Exhaust Camshaft Adjuster w/ Impulse Wheel

Camshaft Adjuster Bolts

VANOS Solenoid Valves

Valve Cover Gasket Set