Bosch ABS M5 Kit Porsche 991 Cup Bedienungsanleitung

ABS M5 Kit Porsche 991 Cup

Installation Manual

Version 1.0 05/04/2019

Content

ii/16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport

Content

1 Introduction .................................................................................................................................................................... 3

2 Content of the Porsche 991 ABS M5 Kit ...................................................................................................................... 4

3 Required Parts................................................................................................................................................................. 6

4 Installation of the ABS M5 Kit....................................................................................................................................... 7

4.1 Installation of the hydraulic parts .................................................................................................................................................................. 7

4.2 Installation of wiring loom and electrical components ......................................................................................................................... 9

4.3 Finishing the installation.................................................................................................................................................................................... 15

Introduction | 1

Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 3/16

1 Introduction

This Installation Manual describes how to fit the Bosch Motorsport ABS M5 into a Porsche

991 Cup car. The manual is valid for the 991 Cup generations 1 and 2. Differences

between these two models will be mentioned in this manual.

Please also refer to the ABS M5 Operation Manual. It is available at www.bosch-

motorsport.com.

2 | Content of the Porsche 991 ABS M5 Kit

4/16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport

2 Content of the Porsche 991 ABS M5 Kit

Illustration1: ABS M5 Porsche 991 Kit Parts (Image shows not all parts of the Kit)

Item Description

A Mounting bracket for Hydraulic Module HU

B Brackets for fuses

C Hydraulic module HU

D Wheelspeed signal splitter

E Mounting plate for Yaw rate sensor

F Yaw rate sensor

G Fittings for brake pipes at hydraulic unit VR und HR

H 2 brake pressure sensors

I 12-position switch

J Malfunction light LED

K Wiring loom

w/o image 3 fuses, 40 A, 25 A, 10 A

This instruction will also refer to the following drawing of Porsche 991 original parts.

Content of the Porsche 991 ABS M5 Kit | 2

Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 5/16

Pos. Description Pc. Part no.

Brake-line rear right

Brake-line front left

Brake-line front right

Brake-line rear left

Connector

Bracket for connector

Fillister screw MS6X12

Rubber element

Bracket for distributor

Torx screw M8X20

Hex screw M6X25

Brake-line front left

Brake-line front right

Bracket

Brake-line rear left short

Brake-line rear left long

Bracket

Brake-line rear right short

Brake-line rear right long

Bracket

Connector

991.355.316.8A

991.355.327.8A

991.355.326.8A

991.355.315.8A

991.355.650.8A

991.355.135.8A

999.218.011.03

7P0.614.177

991.355.033.01

900.385.001.01

N .909.995.02

991.355.175.03

991.355.176.8A

991.355.512.01

999.651.409.40

991.355.315.03

991.355.177.80

8K0.611.797.D

991.355.316.03

991.355.179.80

991.355.507.01

991.355.512.01

991.355.657.8A

06-05-00

Illustration2: Porsche 991 brake lines front

Two further brake pipes are required for the installation. Please contact your dealer for

that.

Illustration3: Brake Pipes (not included in the Kit)

This brake pipes replace the pipes 1 to 4. The brake pipes link Porsche bracket 23 to both

ABS M5 connections, labeled with MC1 and MC2 on the hydraulic module.

3 | Required Parts

6/16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport

3 Required Parts

Part Usage Quantity

Brake Pipe Front Axle MC Brake pipe to link Porsche bracket 23 to ABS

M5 item A labeled with MC1.

Brake Pipe Rear Axle MC Brake pipe to link Porsche bracket 23 to ABS

M5 item A labeled with MC2.

Installation of the ABS M5 Kit | 4

Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 7/16

4 Installation of the ABS M5 Kit

4.1 Installation of the hydraulic parts

Fit the mounting bracket item A to HU. Use the M10x1 screw, which comes with the kit.

Illustration4: HU with Bracket

Remove the front left inner wing (plastic part).

Refer to picture “Porsche brake parts” in the previous chapter Content of the Porsche 991

ABS M5 Kit [}4]. Disconnect brake pipe 12, 13, 16, 19 from connector 5.

Remove the brake pipes 1, 2, 3, 4, as they are no longer needed. Pull upwards on com-

ponents 5 and 6 to remove these. These are no longer needed.

Illustration5: Original Cup parts removed

For the installation of the ABS HU assembly, push this into the rubber bushes as shown in

the following picture below.

4 | Installation of the ABS M5 Kit

8/16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport

Illustration6: HU pushed into bracket

Attention: This picture is outdated and will be renewed soon.

Install the two new master cylinder brake pipes – pipes are not included – as shown in

the following picture. Connect the black 991 Cup brake pipes while also fitting the two

steel adapters for VR and HR. Make sure you fit the pipes into the correct port which are

labeled: F=front, R=rear, R=right, L=left.

Illustration7: Brake pipes connected

Attention: This picture is outdated and will be renewed soon.

Prime the ABS brake pressure sensor with a syringe and install one of them on each brake

circuit connector. This is the last step of the installation of the brake hydraulics.

Illustration8: ABS brake pressure sensors installed

Installation of the ABS M5 Kit | 4

Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 9/16

4.2 Installation of wiring loom and electrical

components

Now install the two-piece ABS wiring loom.

Installation of the front wiring loom

Drill a hole of d = 26 mm to feed the ABS wiring loom through the front bulk head. The

center is 50 mm to the bolt and 32 mm to the grommet. Use the connector of the loom to

mark the positions for the three additional notches for the connector. Each notch has ap-

proximately a diameter of ca. 1.5 mm. File these notches out.

Mark the correct vertical positions for the two holes for the connector fixation and drill

two holes.

Illustration9: Position of hole in bulk head

Illustration10: Position of fixation holes, vertical

4 | Installation of the ABS M5 Kit

10/16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport

Illustration11: Connection of ground cable

The installation of the front wiring loom starts from the ABS connector.

Connect the main connector to the ABS unit.

Connect the pressure sensors. Pay attention, to connect the correct brake circuit.

Connect the ABS ground cable at the same bolt as other ground cables are connected at

the bulkhead nearby. The loom is designed to run underneath the black transversal beam

to the right. Mount the connector to connect to the inside loom into the bulkhead by us-

ing the delivered nutplate.

Connect the wheel speed sensors: Disconnect the connector of the wheel speed sensor.

Connect the end that comes from the wheel to the ABS loom “…in”. Connect the con-

nector that runs into the vehicle chassis loom to the ABS loom connector “…out”. By doing

this, the wheel speed signal is fed to the ABS and from the signal splitter back to the

vehicle display. Repeat this for front left.

Illustration12: ABS loom for front boot area

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