Maintenance, Self Diagnostics: Maintenance Porsche Cayenne I

Power steering: Checking fluid level

> Before inspecting the fluid level, run the engine for approx. 20 seconds. Multiple steering operations (manoeuvring) will alter the fluid level in the reservoir! Check the fluid level.

> If coolant hoses come into contact with Pentosin, thoroughly clean them with water IMMEDIATELY.

> Replace visibly swollen coolant hoses.

Damage to the power-assisted steering will occur if there is a shortage of oil in the hydraulic system. Even small leaks can cause the fluid to escape as a result of the high oil pressure present in the hydraulic circuit and damage the servo pump.

Grunt-like noises on turning the steering to full lock or foam formation in the reservoir indicate a shortage of oil and/or the absorption of air. Before filling the reservoir, any existing leaks must be eliminated. In this case the oil level in the reservoir must be checked with the engine running as well as stopped! If the oil level drops to the bottom of the reservoir or bubbles rise up, then there is air in the hydraulic system. The system must then be bled. Refer to 48 IN TEST AND ASSEMBLY WORK ON POWER STEERING - AS OF MY 2003 (ALL MODELS EXCEPT CAYENNE S TIO TITAN) .

Scheme 7

The reservoir is located in the engine compartment, front left under the engine compartment cover -arrow-. (Scheme 7)

Use only Pentosin CHF 11 S in the reservoir. Pentosin CHF 11 S can be ordered under the following part number: Quantity supplied 1 litre = 000.043.203.33.

Scheme 8

A dipstick with a MIN/MAX marking is mounted on the closure cap of the expansion tank. The marks are for a fluid level with a cold engine (approx. 20 °C)!

Note. The MAX mark can be easily exceeded at higher temperatures!

1. Start engine and run it at idle speed for approx. 20 seconds. Switch off engine.

2. Open engine cover and open the lid of the engine compartment cover.

3. Open reservoir cap.

4. Wipe dipstick. Close and then reopen cap. The fluid level must be in the indicated range (MAX/MIN level at approx. 20 °C). Top up with Pentosin if necessary.

Changing the brake fluid

Note. Observe brake fluid quality. Use only new DOT 4 brake fluid. The brake fluid change interval is two years using Super DOT 4 brake fluid. This brake fluid is available under the following part numbers: container quantity 1 litre = 000.043.203.66; container quantity 30 litres = 000.043.203.67. Drain brake fluid from every brake caliper at both bleeder valves. Bleed the outer bleeder valve first.

Scheme 9

1. Open threaded cover of brake fluid reservoir -arrow-. (Scheme 9)

2. Connect a bleeding device to the brake fluid reservoir.

3. Switch on the bleeding device. Bleeding pressure is approx. 2.0 bar.

4. Continue changing the brake fluid at the brake callipers. Do so in the following sequence: rear right/rear left/front left/front right.

5. Open every bleeder valve until clear, bubble-free brake fluid emerges and until the corresponding change quantity per brake caliper is reached (approx. 250 cm 3 ).

6. Use a transparent hose and a collecting bottle to check the escaping brake fluid accurately for cleanliness, freedom from air bubbles and to determine the brake fluid used.

7. Tighten the bleeder valves to the specified tightening torque and remove the bleeder hoses. Refer to 47 TW TIGHTENING TORQUES FOR BRAKE HYDRAULICS - AS OF MY 2003 (ALL MODELS EXCEPT CAYENNE S TIO TITAN) .

8. Switch off bleeding device and remove the adapter on the brake fluid reservoir. The brake fluid level in the brake fluid reservoir must be between the MIN and MAX markings once the vehicle has been filled and bled. Adjust the brake fluid level if necessary.

Mix ratio of fluids for windscreen washer system

Preliminary work - Battery maintenance: Checking condition of battery and battery vent hose

Switch off all loads and remove ignition key.

Observe the warning notes and safety regulations for hydrocyanic acid batteries.

1. Move backrest all the way forward. Move front seat all the way up and all the way forward.

Scheme 10

2. Release the covers -arrows A- and remove rear seat rail cover caps -arrows B-. see scheme 23

3. Move front left seat back and up as far as possible. Move backrest fully forward.

Scheme 11

4. Unclip the front seat trim forwards -A-. see scheme 24

5. Fold the carpet sections forward and unscrew both fastening screws -1-. see scheme 24

6. Fold the seat back as far as possible. With the seat in its folded position, move the seat forward again using the fore-and-aft adjustment.

Scheme 12

7. Open the four tension hooks on the battery case cover using a screwdriver.

8. Remove the battery case cover with ventilation channel.

Scheme 13

Note. The maintenance-free battery has an inspection glass. The charge state and acid level of the battery can be checked through the inspection glass -B-. (Scheme 12) If a battery is more than 5 years old and the indicator of the inspection glass is colorless, replace the battery. If the battery has been charged, air bubbles can form under the inspection glass. Before carrying out a visual inspection, tap carefully on the inspection glass with something like the handle of a screwdriver.

Three different color indications are possible

Check low-maintenance battery

> The accident prevention regulations must be strictly observed when handling battery acids.

> Wear suitable protective clothing and protective glasses.

> Only use a torch to illuminate the inside of the battery. Never illuminate the inside of the battery with a naked flame.

> Do not handle a naked flame or lighted cigarettes near batteries.

> Observe the disposal regulations for batteries and sulphuric acid when disposing of batteries.

Note. Use a commercially available battery filling bottle. The correct acid level of the battery is an important factor for a long service life of the battery. When the acid level is too low, a capacity loss (performance loss) of the battery occurs, which is caused by the cell plates drying out. If the cell plates are not surrounded by electrolyte (battery acid), it will lead to corrosion of the lead plates, the plate bridges and the cell connectors. The result of the corrosion is that battery functioning cannot be guaranteed. The battery will become useless. If the acid level is too high, damage can occur by the battery acid (sulphuric acid/water mixture) leaking out of the battery.

1. Unscrew battery plugs.

2. Shine a torch into the battery. The electrolyte level of the battery must be at the protruding " lug".

2.1. If the acid level is too low, refill with distilled water using the battery filling bottle.

3. Screw in battery plugs again and ensure that they are seated correctly.

Maintenance every 2 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Maintenance every 4 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Maintenance after 4 then every 2 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Maintenance after 10 then every 2 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

03 Cardan shaft maintenance - as of MY 2004 (Cayenne TIP, Cayenne MAN, Cayenne S TIP, Cayenne S MAN, Cayenne Turbo)

Note. The air bellows of the cardan shafts may be damaged by external influences e. g. during off-road use or similar operation. Consequence: loss of a large amount of grease, ingress of dirt into the universal joint. Premature replacement of the cardan shaft may be necessary.

1. Maintenance of cardan shafts

Resetting maintenance interval

Note. If the engine oil is replaced at a service, the maintenance interval must be reset.

1. In the Porsche System Tester, select Instrument cluster , then press >>.

2. Select the Coding menu, then press >>.

3. Select Reset Service Interval Display menu, then press >>.

Note. Depending on the country, additional items are checked in the case of the V6 model. These items must be selected on a country-specific basis.

4. Select Reset menu and confirm with F8.

5. Quit menu, shut down PST and disconnect from vehicle.

Additional maintenance, replacing spark plugs

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Additional maintenance every 120,000 km/80,000 mls or every 4 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Additional maintenance every 240,000 km/160,000 miles or every 16 years

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used.

Minor maintenance

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used. If the mileage for scheduled maintenance is not reached, minor maintenance must be carried out after 2, 6, 10...... years. The terms "inspect" and "check" include all necessary subsequent work such as adjustments, readjustments, corrections and replenishment. They do not include the repair, replacement or overhaul of components or assemblies. The maintenance item > Replacing spark plugs < depends on the engine type. Please refer to the "Additional maintenance" chapter. Refer to 28 70 55 Replacing spark plugs - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used. If the mileage for scheduled maintenance is not reached, minor maintenance must be carried out after 2, 6, 10...... years. The terms "inspect" and "check" include all necessary subsequent work such as adjustments, readjustments, corrections and replenishment. They do not include the repair, replacement or overhaul of components or assemblies. The maintenance item > Replacing spark plugs < depends on the engine type. Please refer to the "Additional maintenance" chapter. Refer to 28 70 55 Replacing spark plugs - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) . Refer to 28 70 55 Replacing spark plugs - as of MY 2004 (Cayenne TIP, Cayenne MAN) .

Major maintenance

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used. If the mileage for scheduled maintenance is not reached, major maintenance must be carried out after 4, 8, 12...... years. The terms "inspect" and "check" include all necessary subsequent work such as adjustments, readjustments, corrections and replenishment. They do not include the repair, replacement or overhaul of components or assemblies. The maintenance item > Replacing spark plugs < depends on the engine type. Please refer to the "Additional maintenance" chapter. Refer to 28 70 55 Replacing spark plugs - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) .

Note. The engine oil and oil filter must be changed every 10,000 km (6,000 mls) in vehicles which are operated in countries where leaded fuel is used. If the mileage for scheduled maintenance is not reached, major maintenance must be carried out after 4, 8, 12...... years. The terms "inspect" and "check" include all necessary subsequent work such as adjustments, readjustments, corrections and replenishment. They do not include the repair, replacement or overhaul of components or assemblies. The maintenance item > Replacing spark plugs < depends on the engine type. Please refer to the "Additional maintenance" chapter. Refer to 28 70 55 Replacing spark plugs - as of MY 2003 (Cayenne S TIP, Cayenne S MAN, Cayenne Turbo, Cayenne Turbo S, Cayenne S TIO Titan) . Refer to 28 70 55 Replacing spark plugs - as of MY 2004 (Cayenne TIP, Cayenne MAN) .

Poses Online