Operation CHARM: Car repair manuals for everyone.

Safety Notes and Information When Repairing the Running Gear

Safety notes and information when repairing the running gear
Fitting vehicle parts

Warning! Danger of accident and material damage. When mounting specifications are not observed, the long-term behavior of screw-connections is nor ensured (connections can loosen) and/or the service life or component function could become restricted.
^ All parts used on the running gear are subject to a close visual inspection.
^ Only use approved original Porsche parts.
^ Replace self-locking nuts.
^ When fitting control arms on wheel carriers, make sure the bevel pinions from the ball joints are clean. Clean with a lint-free cloth as necessary. Do not use cleaning agent.
^ The prescribed tightening torque must be strictly observed.
^ Observe grease specification (for example, on steering shaft).


Spring struts/coil springs

Caution! There will be alterations in the handling due to installing incorrect components.
Prior mechanical damage to coil springs due to incorrect handling by the customer or in the workshop can cause the coil springs to break, even at a later point in time.
^ When installing new coil springs/spring struts, make sure they are assigned correctly.
^ When removing and installing coil springs, only use suitable or specified tools/spring compressors.
^ Avoid the following effects on coil springs: hammer impacts, welding beads, retrofitted affixed color identification.
^ No welding and no sanding (separating work) in the area of coil springs or spring struts! If necessary, cover coil springs or spring struts.
^ Before installing, give the components a visual check and replace the coil springs as necessary.

Wheel rims and tires

Warning! Danger of injury and damage to property as a result of damage to wheels and tyres handled improperly.
^ Straightening and welding work on light alloy wheels is not permissible.
^ The high lyre seating pressure required (maximum 4 bar! this value must not be exceeded!) may lead to injury through possible lyre or wheel damage (in the event that several unfortunate factors should occur simultaneously)!
^ The lyre must be filled in the filling cage.

Note!

^ Newly mounted tyres require a bedding-in period to remove the vulcanization layer.
^ Customers should be informed that the full performance of new or newly mounted tyres is achieved only after a distance of 100 to 200 km (60 to 120 miles) has been driven. Extreme driving maneuvers (acceleration, braking) during this time should be avoided.

Working on vehicles with PSM

Danger! Danger of injury and damage to property due to malfunctions in the PSM control range if the steering angle sensor is not calibrated or is calibrated incorrectly.
^ After on wheel suspension parts, when replacing the steering-angle sensor, and after changing the wheel alignment values, calibrate the steering angle sensor with the front wheels in straight-ahead position.


Brake system

Warning! Danger of injury and danger of damage to the vehicle if braking effect is impaired by using non type-specific original Porsche spare parts, if the brake pads and/or brake discs are replaced too /ate.
^ The brake pads must be replaced when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.
^ Replace brake discs in good time (observe minimum brake disc thickness and surface condition).
^ Danger of accident if brake pads with the wrong brake pad quality are installed.
^ Use only the type-specific brake pads (correct brake pad quality) in the Porsche Spare Parts Catalogue. When installing a new expanding spring, mount a new retaining pin and new retainer (safety bracket) or retaining pin screw on the brake calliper.


Note!
^ Observe brake-fluid quality! Use only new DOT4 brake fluid.
^ The brake-fluid change interval using Super DOT4 brake fluid is two years.
^ This brake fluid is available under the following part numbers: Quantity supplied 1 litre = 000.043.203.66! Container quantity 30 liters= 000.043.203.67.

Handling air bag systems

Warning! A triggering of the airbag (malfunction in the airbag system) caused by improper work on airbag components cannot be ruled out. In the case of such a malfunction, an unsuitable steering wheel holder could cause injury or damage during suspension alignment work.
^ Use only steering wheel holders which do not project into the area of the airbag unit during suspension alignment work.
^ Observe safety regulations for airbag vehicles.


Steering

Caution! Danger of damage to property if too much Pentosin CHF 11 S is added to the supply tank of the power steering system, or if Pentosin comes into contact with the coolant hoses when filling or topping up.
^ Observe the following specifications in order to avoid overfilling and thus overflowing.
^ Multiple steering operations (maneuvering) with the engine switched off changes the fluid level in the reservoir! Fluid level rises. In this case, the engine must be run for approximately 20 seconds immediately prior to the fluid level check.
^ If coolant hoses come into contact with Pentosin, thoroughly clean them with water IMMEDIATELY.
^ Replace visibly swollen coolant hoses.

Note!
^ Rack-and-pinion steering gear and servo pump must not be repaired or dismantled.