Porshe 911 (997). Manual - part 8

Warning sign

9. Before opening the fuel lines, put up or attach to vehicle a warning sign in a clearly visible position

→ Warning sign .

Fuel line rapid-action coupling

DANGER

Fuel can escape when fuel line is disconnected.

Risk of fatal injury!

• 

Damage to skin

• 

→ Do not work on fuel system if engine is hot!

→ Do not smoke, avoid fire and naked flames!

→ Wear fuel-resistant protective gloves and goggles.

→ Attach warning sign to vehicle in a clearly visible position.

10. Open fuel supply line. Press the lugs on the rapid-action coupling and pull off the line. Collect

escaping fuel with a cloth.

Holder for fuel line

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11. Unclip fuel line from holder on coolant expansion tank -Arrow- .

Oxygen sensor connector in the engine compartment

ATTENTION

Trapping of oxygen sensor cables when lowering the engine

Material damage!

• 

→ place between engine and engine strut

12. Unclip the oxygen sensor plug connections -1,2- from the holders on the right and left in the engine

compartment. Push the red lugs upward with a small screwdriver and unplug the connector. The
connectors are colour-coded to prevent confusing them.

Drive belt tensioning pulley

13. Loosen drive belt. Mark the running direction of the belt with a coloured pen. Slacken belt by turning the

tensioning pulley (wrench size 24) clockwise -Arrow- , hold tightly and simultaneously take the drive
belt off the deflection pulley. Carefully allow the tensioning roller to turn back into tensioning position.

Note

The air-conditioning lines on the compressor do not have to be disconnected in order to remove
engine/transmission unit.

Note

After removal, place the air-conditioning compressor on a suitable protective support (e.g. foam,
neoprene, etc.).

• 

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14. Remove air-conditioning compressor → 873409 11 Detaching and fastening compressor - detaching.

Air-conditioning compressor ground line

15. Disconnect ground connector from intake distributor side 4-6 -Arrow- .

Rear fastening of the air-conditioing compressor

16. Pull the engine comaprtment temperature sensor out of the intake distributor 4-6 together with the rubber

sleeve -1- and unscrew the rear fastening screws -2- of the air-conditioing compressor.

Front fastening screw of the air-conditioning compressor

17. Unscrew the front fastening screw -Arrow- of the air-conditioning compressor. Due to the restricted

accessibility, the use of a 3/8" extension, 16° movable NR.15 with a long Torx E10 socket wrench is
recommended. To lift out the air-conditioning compressor, the screw must be pulled upwards and held in
position.

18. Remove the holder for the servo lines, lift out the air-conditioning compressor with the connected lines

and place on its side on a protective support. Secure additionally with a tie-wrap.

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Engine wiring harness round connectors

19. Disconnect engine wiring harness (2 round connectors with bayonet locks) from the plug connections in

the right of the engine compartment. In order to do this, open the bayonet locks by turning them
anti-clockwise.

Engine wiring harness fastening

20. Open tie-wrap -Arrow- on engine wiring harness cable guide and lay wiring harness on

engine.

Servo lines in engine compartment

WARNING

Danger of injury and damage to material through Pentosin

Irritation and damage to skin

• 

Damage to hoses and wiring

• 

→ Wear protective gloves and goggles

→ If the eyes or skin come into contact with the fluid, wash immediately with water!

→ Collect escaping Pentosin

→ Use caps to protect the wiring against soiling and damage!

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