Quick Info

Technical Information

97/11 ENU

4711

4

Message: "Warning Brake Fluid Level" - Replacing Sensor and Brake Fluid Reservoir
(97/11)

Information
•

Document with limited validity

This Quick Information is valid until further notice or until December 31, 2012.
Vehicle Type:

Cayenne/Cayenne S/Cayenne Turbo/Cayenne Diesel/Cayenne Hybrid

Model Year:

As of 2011 up to 2012

Concerns:

Brake fluid reservoir sensor

Information:

“Warning Brake fluid level” in instrument cluster.
Information
For precise fault cause analysis for the message “Warning Brake fluid level” in the instrument
cluster, the parts will be requested.
Both parts, sensor and brake fluid reservoir, must be
- replaced completely and
- returned in their original packaging
- to Porsche.

Parts Info:

958.355.113.00 ⇒ Brake fluid reservoir (complete with sensor)

Work Procedure: 1

2

Open hood to service position. ⇒ Workshop Manual ’553119 Removing and installing front
pneumatic spring - section on "Removing"’
Remove left cross panel. ⇒ Workshop Manual ’508119 Removing and installing cross panel section on "Removing"’

Information
•

Before disconnecting the brake lines, place a clean absorbent cloth underneath.

•

Close off brake lines with a suitable plug immediately after disconnecting.

2012© Porsche Cars North America, Inc.

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Quick Info
4711

ENU

Technical Information

97/11
Information

•

In the event of assembly work at the hydraulic connections, all electric plug connections in the area
of the connection point must always be connected. This prevents the inside of the plug connections
from being splashed with brake fluid or water.

•

Clean any plug connections that have become dirty or damp during removal and fitting using a
lint-free cloth, for example.

•

Brake fluid on electrical contacts (even thinned brake fluid) leads to corrosion and may cause faults
in the system.

•

Remove any escaping brake fluid immediately; rinse with water and dry thoroughly if necessary.

3

Release the sieve filter ⇒ Sieve filter in brake fluid
reservoir -1- using a suitable tool ⇒ Sieve filter in
brake fluid reservoir -2- and remove it from the brake
fluid reservoir ⇒ Sieve filter in brake fluid reservoir
-3-.

4

Drain the brake fluid from the brake fluid reservoir
using a suitable tool, e.g. a double-action hand pump.

5

Removing brake fluid reservoir:

1

2

3

Sieve filter in brake fluid reservoir
5.1

Loosen the fastening screw ⇒ Fastening
screw on brake master cylinder -1- used to
secure the brake fluid reservoir ⇒ Fastening
screw on brake master cylinder -2- to the
brake master cylinder ⇒ Fastening screw on
brake master cylinder -3-.

2
1
3
Fastening screw on brake master cylinder

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2012© Porsche Cars North America, Inc.

Quick Info

Technical Information
5.2

97/11 ENU

Lever out the brake fluid reservoir ⇒
Removing brake fluid reservoir -1- using
a suitable tool ⇒ Removing brake fluid
reservoir -2- and remove it from the brake
master cylinder ⇒ Removing brake fluid
reservoir -3-.

4711

4

1

3

2

Removing brake fluid reservoir
6

7

Remove rubber seals ⇒ Rubber seals on brake
master cylinder -1- from the brake master cylinder
⇒ Rubber seals on brake master cylinder -2- and
replace them if necessary.

1

Installing new brake fluid reservoir:

2

Rubber seals on brake master cylinder
7.1

Press the brake fluid reservoir ⇒ Fitting
brake fluid reservoir -2- into the brake master
cylinder ⇒ Fitting brake fluid reservoir -2- (⇒
Fitting brake fluid reservoir -arrow-).

1

2
Fitting brake fluid reservoir

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AfterSales

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Quick Info
4711

ENU

Technical Information

97/11

7.2

Fit the fastening screw ⇒ Fastening screw on
brake master cylinder -1- used to secure the
brake fluid reservoir ⇒ Fastening screw on
brake master cylinder -2- to the brake master
cylinder ⇒ Fastening screw on brake master
cylinder -3-. ⇒ Workshop Manual ’4X00IN
Tightening torques for brake hydraulics’

2
1
3
Fastening screw on brake master cylinder

8

9

Insert the sieve filter ⇒ Sieve filter in brake fluid
reservoir -1- into the brake fluid reservoir ⇒ Sieve
filter in brake fluid reservoir -3-.

1

Install left cross panel. ⇒ Workshop Manual ’508119
Removing and installing cross panel - section on
"Installing"’

2

3

10 Change the brake fluid. ⇒ Workshop Manual
’470855 Changing brake fluid’
11 Close hood. ⇒ Workshop Manual ’553119 Removing
and installing front pneumatic spring - section on
"Installing"’

Sieve filter in brake fluid reservoir

End of remedial action.

Working Time:

References:

47101950: Removing and installing brake fluid reservoir

Labor time: 17 TU

50811951: Removing and installing cross panel

Labor time: 22 TU

47085550: Changing brake fluid

Labor time: 56 TU

⇒ Workshop Manual ’508119 Removing and installing cross panel’
⇒ Workshop Manual ’471519 Removing and installing brake master cylinder’

Sep 7, 2012
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2012© Porsche Cars North America, Inc.

Quick Info

Technical Information

97/11 ENU

4711

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⇒ Workshop Manual ’470855 Changing brake fluid’

Important Notice: Porsche Cars N.A Technical Bulletins are intended for use by professional technicians, not a "Do-it-yourselfer." They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Special tools may be required to perform certain operations identified in these bulletins. Use of tools
and procedures other than those recommended in these bulletins may be detrimental to the safe operation of your vehicle. Properly trained technicians have the equipment, tools, safety instructions
and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your Porsche Dealer for
information on whether your vehicle may benefit from the information. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify correct part
numbers.
© Porsche Cars North America, Inc.

Dealership
Distribution
Routing

Service Manager

_______

Shop Foreman

_______

Service Technician

________

_______

_______

_______

Asst. Manager

_______

Warranty Admin.

_______

Service Technician

________

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Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
Cayman™, Panamera®, Tiptronic®, VarioCam®, PCM®, 911®, 4S®, FOUR, UNCOMPROMISED.® and the model numbers and distinctive shapes of Porsche’s automobiles such as, the federally
registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners. Some vehicles may be shown with non-U.S. equipment. Porsche
recommends seat belt usage and observance of traffic laws at all times.
Printed in the USA

2012© Porsche Cars North America, Inc.

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