Service

Technical Information

93/20

ENU

1001

1

Complaint - Vibrations in Passenger Compartment at 2,000 - 3,000 RPM (93/20)

Vehicle Type:

Macan S (95B)

Model Year:

As of 2019 up to 2020

Subject:

Boost pressure hose between charge-air cooler and throttle valve

Information:

Unfavorable routing of the boost pressure hose can cause vibrations that may be transmitted
into the passenger compartment.

Remedial
Action:

Check routing of the boost pressure hose and if necessary:
•
•
•
•

Install boost pressure hose correctly
Re-align boost pressure hose
Adjust bonnet and front apron
Replace boost pressure hose

Parts required
Parts Info (if
required):

Part No.

Designation

Qty.

95B145993G

 Charge air hose

1 ea. (only if required)

Required tools
Tools:

•
•

Torque wrench, 2–10 Nm (1.5–7.5 ftlb.), e.g. VAG 1783 Torque wrench, 2-10 Nm (1.5-7.5
ftlb.)
Calliper gauge, e.g. VAS 6082 Depth gauge

Preparatory work
Work Procedure: 1

2

Remove front left wheel housing liner, see  Workshop Manual '505619 Removing and installing
front wheel housing liner'.
Document the installation position of the charge air hose and the connection points on the charge-air
cooler and throttle valve by taking relevant pictures before carrying out repairs.

Information
Also document your findings after each section if the measure has not corrected the noise problem.

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Technical Information

93/20

Checking installation position of charge air hose
Work Procedure: 1

Check installation position of the charge air hose and check whether the charge air hose is attached
and installed correctly at the specified end points on the throttle valve  Installation position of
charge air hose and on the charge-air cooler  Connection point for charge air hose on charge-air
cooler.
•
•

If the charge air hose is installed correctly, continue with  Technical Information '505619
Turning charge air hose'.
If the charge air hose is not installed correctly, install the charge air hose correctly and check
whether this corrects the problem.

Installation position of charge air hose

Connection point for charge air hose
on charge-air cooler
2

If the problem is corrected, no further action is required.
•

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If this is not the case, continue with  Technical Information '505619 Turning charge air hose'.

AfterSales

Service

Technical Information

93/20

ENU

1001

1

Turning charge air hose
Work Procedure: 1

Loosen the hose clamp on the charge air hose, move the charge air hose at the throttle valve approx.
7 mm (0.28 in) from the alignment point  Connection point for charge air hose on throttle valve by
turning it clockwise and secure the charge air hose.
Then, check whether the problem is corrected.
Information
Turning the charge air hose should relieve tension on the charge-air cooler mount in order to prevent
this problem.
•
•

If the problem is corrected, no further action is required.
If this is not the case, repeat the procedure and move the charge air hose again by turning it
approx. 7 mm (0.28 in) anti-clockwise. Then, check again to see whether the problem is
corrected.

Connection point for charge air
hose on throttle valve
2

If the problem is corrected, no further action is required.
•
•

If this is not the case and the vehicle was produced before 8/12/2019, continue with 
Technical Information '505619 Adjusting bonnet and front apron'.
If this is not the case and the vehicle was produced after 8/12/2019, continue with 
Technical Information '505619 Replacing boost pressure hose'.

Adjusting bonnet and front apron
Information
Carry out the steps described under "Adjusting bonnet and front apron" only on vehicles produced before
8/12/2019.
This measure was already implemented during production on vehicles produced after this date.

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Work Procedure: 1

Technical Information

93/20

Check adjustment dimension on both bonnet lock latches.
To do this, use a suitable tool, e.g. a calliper gauge, to measure at position  Bonnet lock latch -a(lower edge of lock latch to retainer plate) and write down the measured value.
•
•

If the value is 37 mm (1.46 in), continue with  Technical Information '505619 Replacing
boost pressure hose'. The bonnet has already been adjusted to the optimised dimension.
If the value is not 37 mm (1.46 in), continue with Step 2 - Adjust lock latch.

Bonnet lock latch
Adjust lock latch.
2

Adjust the lock latch by unscrewing the adjusting screw  Bonnet lock latch -1- to dimension 
Bonnet lock latch -a-37 mm (1.46 in) and write down the difference in measurement on both lock
latches. (Actual dimension compared to 37 mm (1.46 in))

The front apron must then be raised by the same dimension.
3

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To do this, remove the front apron. See  Workshop Manual '631519 Removing and installing front
apron'.

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Service

Technical Information

4

93/20

3.1

Measure the dimension  Retaining strip on
front apron -a- between the bore and lower
edge of retaining strip on the front apron and
write it down.

3.2

Loosen screws on the front apron retaining
strip.

3.3

Move the front apron retaining strip up by
the difference measured in 3.1 and tighten
screws on the front apron retaining strip to
Tightening torque 9.7 Nm (7.2 ftlb.) .
Perform this procedure on both retaining
strips for the front apron.

ENU

1001

1

Install front apron, see  Workshop Manual '631519
Removing and installing front apron'.

Then, check whether the problem is corrected.
•
•

Retaining strip on front apron
If the problem is corrected, no further action is
required.
If this is not the case, continue with  Technical Information '631519 Replacing boost pressure
hose'.

Replacing boost pressure hose
Work
Procedure:

Remove boost pressure hose.
1

Loosen both hose clamps on the boost pressure hose  Installation position of charge air hose.

2

Pull boost pressure hose off the throttle valve and then off the charge-air cooler.

Install boost pressure hose.
3

The boost pressure hose is installed in reverse order.
Also check that the charge air hose is installed at the
correct position  Installation position of charge air
hose.

Then, check whether the problem is corrected.
•
•

If the problem is corrected, no further action is
required.
If this is not the case, turn the boost pressure hose as
described under  Technical Information '631519
Turning charge air hose'.
Installation position of charge air hose

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Technical Information

93/20

Concluding work
Work Procedure: 1

Install front left wheel housing liner, see  Workshop Manual '505619 Removing and installing front
wheel housing liner'.

Invoicing
Invoicing:

For documentation and warranty invoicing, enter the labor operations (depending on the time and effort
involved), PQIS coding and part numbers specified below in the warranty claim:

APOS

Labor operation

21390111

Checking molded hose

21394961

Reworking molded hose

21394962

Reworking (turning) molded hose

55180250

Checking upper parts of front lock

55181650

Adjusting upper parts of front lock

63151900

Removing and installing front apron

63171650

Adjusting retaining strips

21391961

Removing and installing molded hose

I No.

PQIS coding:
Location (FES5)

10010

Engine

Damage type (SA4)

1313

Vibrating, shaking

Parts Info:

Parts required (if necessary):
Part No.

Designation

Qty.

95B145993G

Charge air hose

1 ea.

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.

© 2020 Porsche Cars North America, Inc.

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