The VANOS system is BMWs version of variable valve timing and can be found on the intake and or exhaust camshafts. The system uses a pair of electrically actuated solenoids that direct the flow of pressurized oil to the VANOS gears.

We offer professionally built vanos units for several BMW models. Our vanos units are rebuilt to a much higher standard than the factory units, designed to resolve engine performance problems due to a malfunctioning or stuck vanos.

Jun 9, 2022 · BMW’s VANOS is something that most BMW owners are fairly familiar with as these systems often dictate how well your car will perform in different scenarios. But how does VANOS work exactly? Join us as we go down this rabbit hole in search of answers.

Dec 9, 2010 · New (rebuilt) vanos units are being sold with the same Buna O-ring. BMW does not provide the vanos piston seal/O-ring as a separate part. Here is a link to the Roadfly BMW E39 forum where much of this information was first made public regarding the double vanos: http://bimmer.roadfly.com/bmw/forums/e39/7494631-2.html.

Jun 5, 2005 · The good news on Vanos noise aestetics is that the E60 M5 has horrible Vanos noise at idle, far worse than a non-upgraded E39 M5. I think this will bring Vanos noise into fashion as the "Sound of the M engine".

The BMW DIS vanos diagnostic test can be run to assess speed and preciseness of adjustment. Repair Procedure. The following procedure outlines the E39 M5 VANOS seals R&R (remove and replace). Specifically, it provides step-by-step instructions for removing and replacing the seals. Repair time: 12 hours mechanic, 12+ hours DIY.

Jul 20, 2019 · What is BMW VANOS? Learn how to diagnose and repair failures with BMW's variable valve timing VANOS system.

6-cylinder Double Vanos Procedure (E46, E39) has been experiencing a failure. Diagnoses indicate that the failure occurs due to the deterioration of the Vanos piston seal O-rings. As a result, the Vanos system loses efficiency over time..

VANOS Rebuild Kit for M52tu, M54, M56 Engine - E46 E39 E60 Z3 Z4. Upgraded Viton seal kit for the dual VANOS variable camshaft timing system on BMW M52tu, M54, and M56 engines.

It’s a single vanos, meaning only the intake valve timing is varied. This vanos unit is part of BMW 8-cylinder engine M62TU. This engine was incorporated in multiple car models during years 1999-2005. It’s found in the 5-series E39 99-03, 7-series E38 99-01, X5 E53 99-03, Land Rover 03-05, Range Rover 03-05.