Porshe 911 (997). Manual - part 540

Push on sealing rings -3, 4- and hydraulic lines -A- with the red ring. Screw in banjo bolt -2A- on the
lower or right side of the hydraulic pump -1- . Tightening torque → Tightening torque: 9 ftlb. +1.5 ftlb.

3. Push on sealing rings -3, 4- and hydraulic lines -B- with the blue ring. Screw in banjo bolt -2B- on

the upper or left side of the hydraulic pump -1- . Tightening torque → Tightening torque: 9 ftlb.
+1.5 ftlb.

Fastening hydraulic pump

4. Position hydraulic pump -3- on holder for hydraulic pump -4- -arrow A- and screw down the fastening

nuts -2- .

5. Push in rubber holder -1- in support for hydraulic pump -arrow B- .

Locking electric plug connection for hydraulic pump

Installation Location:

Installation location for hydraulic pump

Diagnostic system: reading out fault memory and activating systems

Locking electric plug connection for hydraulic pump

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Locking plug connection for hydraulic pump

1. Push plug connection -2- in bracket -arrow A- and join plug connection -arrow B- .

2. Insert new tie-wrap -1- around wire harness for hydraulic pump and fasten.

General information on the hydraulic system

The hydraulic system is sensitive to penetration of dirt. As soon as the system is opened by the plug, a cloth
must be placed under the hydraulic lines to catch escaping hydraulic oil.
The hydraulic convertible top uses a closed hydraulic system. In general, the hydraulic system will need to be
filled only if the hydraulic circuit was opened (after parts replacement). Only Original Porsche hydraulic oil
→ OIL must be used when changing or topping up the hydraulic oil.

Opening and closing hydraulic valve of the hydraulic pump

Access for opening and closing the hydraulic valve

Installation Location:

Diagnostic system: reading out fault memory and activating systems

 General information on the hydraulic system

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Installation location for hydraulic pump

Opening and closing hydraulic valve

To open, insert the Allen key -A- through the bore -X- of the roll-over bar module into the hydraulic valve -B-
and turn approx. 1 turn to the left.
To close, insert the Allen key -A- through the bore of the roll-over bar module -X- into the hydraulic valve
-B-

 and turn to the right.

Filling and bleeding the hydraulic system

Filling the hydraulic system

Installation Location:

Diagnostic system: reading out fault memory and activating systems

Access for opening and closing the hydraulic valve

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Installation location for hydraulic pump

Filling the hydraulic system

It is essential to lay a cloth underneath the hydraulic pump when filling. Do not fill above the cross hair
marking.

1. Unscrew screw plug.

2. Fill system only using Original Porsche hydraulic oil → OIL .

3. Screw in plug. Tightening torque → Tightening torque: 7.5 ftlb. +0.5 ftlb.

Bleeding the hydraulic system

ATTENTION

Damage to the convertible-top frame if not running synchronously.

Bleed the hydraulic system only after the hydraulic cylinders have been removed from the
convertible-top supports and drive levers on the left and right.

• 

→

The system has a self-bleeding feature. Three to four operations will bleed the system. After bleeding, check
the oil level in the container on the hydraulic pump and check if necessary.

Diagnostic system: reading out fault memory and activating systems

Filling the hydraulic system

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