Install wiper link.  Workshop Manual '921919
Removing and installing wiper link'

8

Fasten relay carrier  Relay carrier -1- on the fuse
box.

AfterSales

Installation position of splice node

Aug 23, 2022
Page 13 of 35

9

Service
9752

ENU

Technical Information

25/22

Relay carrier
8.1

Push in relay carrier  Relay carrier -1- until the locking lugs  Relay carrier -4- engage
securely.

8.2

Screw on and tighten nut  Relay carrier -3-.
Tightening torque 9 Nm

8.3
9

Connect and lock electric plug connections  Relay carrier -2-.

Install new fuse box cover  Fuse box cover -1-.
9.1

Install cover on fuse box  Fuse box cover
-1-.

9.2

Install and tighten screws  Fuse box cover
-2-.
Tightening torque 3 Nm

10 Install filler neck on windscreen washer system.
For instructions, see:  Workshop Manual '926019
Removing and installing windscreen washer system'
Fuse box cover
11 Install water tank cover.
For instructions, see:  Workshop Manual '508719 Removing and installing cowl panel cover'

Aug 23, 2022
Page 14 of 35

AfterSales

Service

Technical Information

25/22

ENU

9752

9

12 Removing front lid service position.
For instructions, see:  Workshop Manual '552213 Fastening front lid (service position)'
13 Connect ground terminal of the vehicle electrical system battery.
For instructions, see:  Workshop Manual '270619 Removing and installing vehicle electrical
system battery'
Invoicing:
Information
The labor operation "Checking engine wire harness" includes the following tasks:
•

Uncovering engine wire harness body

•

Checking engine wire harness body

•

Checking, removing and installing fuse box

•

Reworking PVC seam

When replacing the wire harness, the relevant labor operation "Removing and installing engine wire
harness" must also be tightened.
APOS

Labor operation

97521942

Removing and installing engine wire harness (R4)

97521960

Removing and installing engine wire harness (V6)

97520102

Checking engine wire harness

I No.

PCSS encryption:
Location (FES5)

97520

Engine wire harness

Damage type (SA4)

3319

Corrosion on plug connections

References:

 Workshop Manual '552213 Fastening front lid (service position)'
 Workshop Manual '270619 Removing and installing vehicle electrical system battery'
 Workshop Manual '508719 Removing and installing cowl panel cover'
 Workshop Manual '926019 Removing and installing windscreen washer system'
 Workshop Manual '975219 Removing and installing engine wire harness body (R4)'
 Workshop Manual '975219 Removing and installing engine wire harness body'
 Workshop Manual '921919 Removing and installing wiper link'

AfterSales

Aug 23, 2022
Page 15 of 35

9

Service
9752

ENU

Technical Information

25/22

Repairing engine wire harness body and reworking PVC seam
Information
The engine body wire harness must only be repaired if a maximum of two splice connections are
corroded and must be reworked.
If more than two splice connections are corroded, the engine body wire harness must be replaced.
For instructions, see:  Technical Information '921919 Replacing engine wire harness body and fuse
box, reworking PVC seam on unpainted bodyshell'
Parts Info:

Required parts:
Part No.

Designation
– Location

Number

8K1907613C

 Cover
– Fuse box

1 piece

Required materials (usually already available at the Porsche dealer):

Aug 23, 2022
Page 16 of 35

Designation

Quantity

 Connecting sleeve (crimping sleeve)
– commercially available

As required

 Repair cable
– commercially available

Length as required

 Heat shrink-fit hose
– commercially available

As required

 Tie-wrap 0.5 x 20 mm
– commercially available

4 pieces

 PVC adhesive tape
– commercially available
e.g. TESA tesaflex 4163

As required

 Fleece adhesive tape, approx. 19 mm wide
– commercially available
e.g. TESA 51616 ID

Length as required

 Touch-up stick in vehicle color*
– Unpainted bodyshell in engine compartment

As required

AfterSales

Service

Technical Information
Tools:

Work
Procedure:

•
•
•

25/22

ENU

9752

9

VAS 1978/3 - Stripping pliers
VAS 1978/1A Crimping pliers
VAS 1978/14A Hot-air blower

Information
Choose a place for the joint where there is enough space for connecting all the individual lines.
Do not cut the lines too short in case they have to be laid in a different position if there is insufficient space
in the area of the joint.

Information
The greatest care must be used in the individual work steps for stripping insulation from, crimping, and
shrinking/insulating the electrical lines.
The procedure for stripping insulation from, crimping, and shrinking/insulating the electrical lines must be
complied with and observed.
Crimping samples must be prepared before beginning work.
1

Cut back electric lines at the affected splice point until no more corrosion is visible.
1.1

To do this, cut out the corroded area of the electric lines.

1.2

Slide shrink-fit hose onto the lines.

1.3

Strip 10 mm of insulation off electrical lines.

Insulated lines

AfterSales

Aug 23, 2022
Page 17 of 35

9

Service
9752

ENU

Technical Information

25/22

1.4

Crimp electric lines with crimping pliers
using crimping sleeves or a combination of
crimp and shrink-fit hose.

1.5

Slide shrink-fit hose over the crimp
connections and carefully shrink it to make it
watertight using the hot-air blower.

1.6

Wrap commercially available PVC adhesive
tape all around the joints.

Information
Repaired splice point (example)
Splice connections that were opened and evaluated as OK
must be protected from external influences either with PVC adhesive tape or a water-resistant heat shrink
hose depending on the position on the engine body wire harness.
2

Insulate splice connections in the area  Splices exposed -B- using a water-resistant heat shrink-fit
hose.
Insulation with PVC adhesive tape is sufficient on splice connections in the area  Splices exposed
-A- and  Splices exposed -C-.

Splices exposed

Aug 23, 2022
Page 18 of 35

AfterSales

Service

Technical Information

25/22

ENU

9752

9

Example of insulation with PVC
adhesive tape

Example of seal with heat-shrink-fit hose
3

Secure engine wire harness body to the relay carrier.
3.1

Wrap  Securing individual lines with fleece
adhesive tape around the individual lines at
the marked areas.

Securing individual lines

AfterSales

Aug 23, 2022
Page 19 of 35

9

Service
9752

ENU

Technical Information

25/22

3.2

Wrap with fleece adhesive tape around
the lines in the marked area and fasten 
Securing lines -1- to the relay carrier each
with a tie-wrap.

Securing lines
3.3

Wrap the engine wire harness body at the
positions  Wrapping engine wire harness
body -2- and at the splice node  Wrapping
engine wire harness body -3- with fleece
adhesive tape.

Wrapping engine wire harness body
3.4

Route splice node  Securing splice node
-5- upwards and fasten  Securing splice
node -6-to the relay carrier together using
the remaining wire harness and a tie-wrap.

Information
The water leaking into the fuse box is caused by possible
contact between the fuse box housing and a PVC seam on
the vehicle body.
This contact can cause the fuse box to become deformed
and result in a leak on the fuse box cover.
To prevent future water leaks, the fuse box cover must be
replaced, and the PVC seam between the fuse box and
unpainted bodyshell must be reworked.

Securing splice node

Aug 23, 2022
Page 20 of 35

AfterSales

Service

Technical Information

25/22

ENU

9752

9

Gap from fuse box to unpainted bodyshell with PVC seam
4

Removing wiper link.  Workshop Manual '921919 Removing and installing wiper link'

5

Loosen fuse box to allow access to the PVC seam.
5.1

Loosen and unscrew screws  Remove fuse
box -1- on the fuse box  Remove fuse box
-2-.

Remove fuse box

AfterSales

Aug 23, 2022
Page 21 of 35

9

Service
9752

ENU

Technical Information

25/22

5.2

Press locking lugs  Loosening fuse box -3up and release them. Remove the fuse box as
far as required as the existing plenum panel
wire harness can be used.  Rework position
of fuse box for PVC seam

Loosening fuse box

Rework position of fuse box for PVC seam

Aug 23, 2022
Page 22 of 35

AfterSales

Service

Technical Information

25/22

5.3

Remove PVC seam in area  PVC seam -Busing a suitable tool until it is flush.

5.4

Seal the entire area at which the PVC seam
was removed using a suitable touch-up
stick for the respective vehicle paintwork to
protect the body from corrosion.

5.5

Once the paintwork has dried, re-install the
fuse box. Installation is performed here in
reverse order to removal.

6

Install wiper link.  Workshop Manual '921919
Removing and installing wiper link'

7

Fasten relay carrier  Relay carrier -1- to the fuse box.

ENU

9752

9

PVC seam

Relay carrier
7.1

Push in relay carrier  Relay carrier -1- until the locking lugs  Relay carrier -4- engage
securely.

7.2

Screw on and tighten nut  Relay carrier -3-.
Tightening torque 9 Nm

7.3

Connect and lock electric plug connections  Relay carrier -2-.

AfterSales

Aug 23, 2022
Page 23 of 35

9

Service
9752

ENU

8

Technical Information

25/22

Install new fuse box cover  Fuse box cover -1-.
8.1

Install cover on fuse box  Fuse box cover
-1-.

8.2

Install and tighten screws  Fuse box cover
-2-.
Tightening torque 3 Nm

9

Install filler neck on windscreen washer system.
For instructions, see:  Workshop Manual '926019
Removing and installing windscreen washer system'

Fuse box cover
10 Install water tank cover.
For instructions, see:  Workshop Manual '508719 Removing and installing cowl panel cover'
11 Removing front lid service position.
For instructions, see:  Workshop Manual '552213 Fastening front lid (service position)'
12 Connect ground terminal of vehicle electrical system battery.
For instructions, see:  Workshop Manual '270619 Removing and installing vehicle electrical
system battery'
Invoicing:
Information
The labor operation "Checking engine wire harness" specified below includes all tasks required for this
test and repair path:
•