BMW S54 VANOS Pressure Testing Kit
We put together our S54 VANOS pressure testing kit so we could test S54 VANOS units in the shop to make sure they didn't have internal failed seals. This is a very useful diagnostic tool to determine if your VANOS is working properly. We have made the supplied line long enough so that it can reach the interior of the vehicle and be driven around while observing the VANOS pressure. It is important to check VANOS pressure at idle but also throughout the rev range.