See also:

The Ultimate Performance Subaru
The 2011 WRX STI continues as the ultimate-performance Subaru with its high-boost 305-hp turbocharged/intercooled 4-cyl. Boxer engine and 6-speed manual transmission. The STI also features Multi-M ...

If no steam is coming from the engine compartment
NOTE For details about how to check the coolant level or how to add coolant, refer to “Engine coolant”. 1. Keep the engine running at idling speed. 2. Open the hood to ventilate the engine ...

When checking or servicing in the engine compartment (2.5 L non-turbo models)
CAUTION Do not contact the belt cover while checking the components in the engine compartment. Doing so may cause your hand to slip off the belt cover and result in an unexpected injury. ...