Removing Cylinder Head

WARNING: This page is about a different variant/trim than selected.

WARNING: Danger of objects or loads falling down

Risk of squashing or crushing
1. → Secure components to prevent them from falling down.

NOTIFICATION

Dirt and contamination

Risk of damage to units or components
1. → Protect components from dirt and contamination.
2. → Clean or replace dirty components.

Disconnect coolant hose -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Coolant hose on cylinder head
1. 1.1 Loosen spring band clamp -2- using VAS 6891 - spring band clamp pliers .
2. 1.2 Pull off coolant hose -1- .
3. 1.3 Catch emerging coolant.
Release and disconnect cable plug -2- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Temperature sensor
Disconnect pressure hose -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Pressure hose
1. 3.1 Loosen screw-type clamp -2- .
2. 3.2 Disconnect pressure hose -1- .
Disconnect coolant line -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Line
1. 4.1 Unscrew screws -2 and 3- .
2. 4.2 Set coolant line -1- aside.
Disconnect electric wire harness for throttle housing -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Electric wire harness for throttle housing
1. 5.1 Release and disconnect cable plug -2- .
2. 5.2 Unclip clips -3- .
3. 5.3 Move electric wire harness for throttle housing -1- aside.
Release and disconnect cable plug for fuel pressure sensor -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cable plug for fuel pressure sensor (high-pressure sensor)
Disconnect electric wire harness -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Electric wire harness
1. 7.1 Release and disconnect cable plug -2- .
2. 7.2 Set electric wire harness -1- aside.
Disconnect lines -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Lines on intake-air distributor
1. 8.1 Release and pull off plug-in coupling -2- .
2. 8.2 Close off openings using suitable stoppers.
3. 8.3 Unclip clip -3- .
4. 8.4 Unclip lines -1- from clips -4- and set them aside.
5. 8.5 Disconnect vacuum lines -5- and set them aside.
Release and disconnect cable plugs -1 to 4- and unclip them from the holders.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cable plug
Disconnect electric line for generator -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Electric line for generator
1. 10.1 Unclip clip -2- from holder -3- .
2. 10.2 Set electric line for generator -1- aside.
Release and disconnect cable plug -2- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Hall sender for intake camshaft
Remove support for intake-air distributor -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Support for intake-air distributor
1. 12.1 Unscrew nut -2- .
2. 12.2 Unscrew screw -3- .
3. 12.3 Remove support for intake-air distributor -1- and guide it out of the engine compartment.
Information

Check that all lines and cables are disconnected.

Information

You will need a second mechanic to help you with this step.
Remove cylinder head.
1. 13.1 Unscrew screws -Arrows- .
  1. 13.1.1 Replace screws.
2. 13.2 Unscrew cylinder head screws in the sequence -1 to 10- using T10070 - special wrench, long reach Polydrive .
  Observe specified sequence.
  1. 13.2.1 Replace cylinder head screws.
3. 13.3 Remove cylinder head and place it on a soft surface.
  The help of another person is required.
4. 13.4 Remove and dispose of old cylinder head gasket.
Fig 1: Cylinder Head Screws Loosening Sequence
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Removing cylinder head
Clean the sealing faces on the cylinder head and crankcase.
1. 14.1 Carefully remove residual sealant from the cylinder head and crankcase. Make sure there are no long scores or scratches.