The 2003 BMW Z4 has 3 recalls, the most serious being an airbag concern where an incompatible control processor may have been installed, meaning the airbags for the driver and front passenger may not deploy in a crash.
On the tire side, vehicles equipped with 18-inch wheels may have had the tires damaged when they were mounted to the rims at the factory. That damage can cause a slow pressure loss or an abrupt tire failure while driving, either of which can lead to a loss of vehicle control. There is also a fuel system concern: under certain conditions, specifically high outside temperatures combined with elevations above 5,000 feet, the electric fuel pump can experience vapor lock and cause the engine to stall. If that happens, the engine may not restart for up to 15 to 20 minutes, leaving the vehicle unable to move until the pump cools down.
At a glance
What can fail
Some vehicles may have air bag system processors that are incompatible with each other, which could prevent the air bags from working properly.
What the fix does
Dealers will inspect the air bag processors and replace them if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The electric fuel pump can vapor lock in high heat and high altitude (over 5,000 ft), causing the engine to stall and fail to restart for 15–20 minutes.
What the fix does
A resistor will be installed in the fuel pump's electrical line to reduce pump power and prevent vapor lock.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
On certain vehicles with 18-inch tires, the tire may be damaged during the mounting process to the rim.
What the fix does
The dealer will remove the tire, inspect it for damage, and remount it. Damaged front tires will be replaced.
Summarized — see the official notice for exact wording, dates, and contacts.
