"The fuel rail may detach from the cylinder head and result in a fuel leak," NHTSA said in its recall summary. "A fuel leak in the presence of an ignition source can result in a vehicle fire."
There are no injuries, accidents, fires or fatalities linked to the recall, Volkswagen spokesman Mark Gillies told Edmunds.
The cylinder head threads in the affected cars were manufactured out of dimension due to a damaged drill bit, Volkswagen told federal safety regulators.
"Customers may note a fuel smell and experience engine 'limp home' due to insufficient fuel pressure," the company said in a document filed with NHTSA.
The affected Jetta and Passat cars are equipped with 1.8T engines. The Jettas were built from October 31, 2015 to January 21, 2016. The Passats were built from November 13, 2015 to December 9, 2015.The Golfs were built from November 5, 2015 to November 11, 2015.
Edmunds says: Owners of these cars should schedule a service appointment with their dealer once they receive an official recall notice. But if you have an immediate concern, it's best to contact your dealer now.