2004 BMW X5

What can fail

The engine computer may cause unexpected acceleration when driving slowly in first gear with partial clutch engagement and steady throttle input.

What the fix does

The dealer will update the engine computer software to correct the throttle valve control programming.

What can fail

The fuel line inside the tank that transfers fuel between chambers may be incorrectly attached and could loosen during driving, stopping fuel transfer and causing engine stall if the right chamber empties.

What the fix does

Dealers will inspect the in-tank fuel line connection and reattach it to proper specifications if needed.

What can fail

The bolts securing the front differential, right output shaft housing flange, and right engine support may not be tightened enough, potentially causing these components to loosen.

What the fix does

Dealers will inspect and retighten the affected drivetrain bolts to proper specification.

What can fail

Front drivetrain fasteners on the front differential, right output shaft housing, and right engine support may not have been tightened enough. This can cause fasteners to loosen, creating noise. With continued driving, loosening fasteners can damage threads and housings, or disconnect the right output shaft.

What the fix does

Dealer will inspect the drivetrain fasteners and retighten them to the correct specifications.