Repair when you can Engine and engine cooling
Loose or broken VANOS unit bolts can result in an engine stall, increasing the risk of a crash.
The aluminum bolts that secure the housing for the variable camshaft timing adjustment (VANOS) unit can loosen over time and possibly break.
What to do: Book it in at your next service. There is no deadline and no charge.
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Repair soon Air bags
An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
What to do: Book this in with a dealer now. It affects a safety system.
Fire risk Engine and engine cooling
An electrical short can cause the parts within the PCV valve to melt, increasing the risk of a fire, even when the vehicle is not in use.
0si, X3 xDrive30i, X5 xDrive30i, Z4 3.0i, Z4 3.0si and Z4 sDrive30i vehicles. The heater for the positive crankcase ventilation (PCV) valve may short circuit.
What to do: Park away from buildings and book the repair now.
Repair soon Air bags
Should the system fail, in the event of a crash, the front passenger air bag would be deactivated, increasing the risk of personal injury.
5i, X3 3.0i and X3 xDrive30i Sports Activity Vehicles. The front passenger seat occupant detection mat that determines if, and how, the passenger frontal air bag should deploy in a crash may fatigue and develop cracks which could lead to a system failure.
What to do: Book this in with a dealer now. It affects a safety system.