Another facelift came in 2004, but mechanical changes were minimal. Some models were available with rear heating and air conditioning. With that option, coolant capacity is 12.7 quarts (12.0L) and refrigerant capacity is 28.2 ounces (800 g). The cooling system has an unusual feature: the water pump is on the flywheel end of the engine, and the left intake camshaft drives the belt. All other belt-driven accessories are on the front, and each belt has an auto tensioner. When checking fuel pressure with a scan tool, the reading may be higher than specified here. In fact, different information sources show different fuel pressure specs, so it's hard to know which is correct.