48 Test and assembly work on power-assisted steering · General Checking the

911 Carrera (996) Steering 48 Test and assembly work on power-assisted steering General Checking the steering system for leaks (visual check) Damageto power-assistedsteering results from lack of oil in the hydraulic system. Because of With engine idling, turn steering wheel as far as the high oil pressure in the hydraulic circuit, the stop and hold still. The maximum possible even small leaks can cause loss of fluid and line pressure results in this way. damage the servo pump. In this position, check all pipe connectionsfor Grinding noises when the steering is on lock or leaks and retighten if necessary. the formation of foam in the reservoir indicates lack of oil and/or the sucking in of air. Before Perform the check for a maximum of ten seconds. A longer check should always be filling the reservoirI any existing leaks must be interrupted by a brief pause after approximately eliminated on the suction side. AlternativelyI the ten seconds. defective part on the pressure side should be replaced. Checking Pentosin CHF 11 5 hydraulic fluid Only Pentosin CHF 11 S may be filled into the in the power-steering system reservoir. Pentosin CHF 11 S can be ordered The reservoir is located in the engine compart- with the following part number: Quantity supplied 1 litre = 000.043.203.33. ment. There are two marks on the dipstick located on the reservoir cap. One side bears the mark "Cold' for a cold engine (approximately Important note 200 C) and the other "Hot" for a hot engine (approximately800 C). Rack-and-pinion steering gear and servo pump must not be repaired or dismantled. ~ Servo-pump drive belt ~ The drive-beltpretension cannot be adjusted. Jr-- ~ 84-97 48 -3~~.J~\c\-