No. 93-20

Service
Technical Information
93/20
ENU
1001
1
Complaint - Vibrations in Passenger Compartment at 2,000 - 3,000 rpm (93/20)
Revision:
This bulletin replaces bulletin Group 1 93/20, dated August 7, 2020.
Model Year:
As of 2019 up to 2020
Vehicle Type:
Macan S (95B)
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
Retrofit pulsation damper
Parts required if necessary
Parts Info :
Part No.
Designation
Qty.
95B145993H
 Boost pressure hose
1 ea.
Required tools
Tools:
•
•
Torque wrench, 2–10 Nm (1.5 – 7.4 ftlb.), e.g. VAG 1783 Torque wrench, 2–10 Nm (1.5-7.4
ftlb.)
Calliper gauge, e.g. VAS 6082 Depth gauge
Preparatory work
Work Work Procedure:
1 Remove front left wheel housing liner, see  Workshop Manual '505619 Removing and installing
front wheel housing liner'.
2
Document the installation position of the boost pressure hose and the connection points on the
charge-air cooler and throttle valve by taking meaningful pictures before carrying out repairs.
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Information
Also document your findings after each section if the measure has not corrected the noise problem.
Checking installation position of boost pressure hose
Work Procedure: 1
Check installation position of the boost pressure hose and check whether the boost pressure hose
is attached and installed correctly at the specified end points on the throttle valve  Installation
position of the boost pressure hose and on the charge-air cooler  Connection point for boost
pressure hose on charge-air cooler.
•
•
If the boost pressure hose is installed correctly, continue with  Technical Information '505619
Turning charge air hose'.
If the boost pressure hose is not installed correctly, install the boost pressure hose correctly
and check whether this corrects the problem.
Installation position of the boost
pressure hose
Connection point for boost pressure
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'.
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Technical Information
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Turning boost pressure hose
Work Procedure: 1
Loosen the hose clamp on the boost pressure hose, move the boost pressure hose at the throttle
valve approx. 7 mm/ 0.28 in from the alignment point  Connection point for boost pressure hose
on throttle valve by turning it clockwise and secure the boost pressure 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 boost pressure hose again by turning
it approx. 7 mm/ 0.28 incounter-clockwise. Then, check again to see whether the problem is
corrected.
Connection point for boost pressure
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 12.08.2019, continue with 
Technical Information '505619 Adjusting bonnet and front apron'.
If this is not the case and the vehicle was produced after 12.08.2019, continue with 
Technical Information '505619 Replacing boost pressure hose'.
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Adjusting bonnet and front apron
Work
Procedure:
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.
1
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 optimized 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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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.
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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 the boost pressure
hose.
2
Pull boost pressure hose off the throttle valve and then off the charge-air cooler.
Installnew boost pressure hose (Part No. 95B145993H).
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Technical Information
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The boost pressure hose is installed in reverse order.
Also check that the boost pressure hose is installed
at the correct position  Installation position of the
boost pressure 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 the
boost pressure hose
Information
If the problem persists after turning the boost pressure hose, retrofit the pulsation damper as described
in the section  Technical Information '631519 Retrofitting the pulsation damper'.
Retrofitting the pulsation damper
Parts:
Work
Procedure:
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Parts required:
Part No.
Designation
Qty.
95B145784A
 Connection piece
1 ea.
N 10470703
 Countersunk screw
2 ea.
95B129953
 Pulsation damper
1 ea.
PAF107234
 Hose clamp
1 ea.
N 10661002
 Oval-head screw
4 ea.
95B145993H
 Boost pressure hose
1 ea.
N 10544401
 Hose clamp
2 ea.
95B803228A
 Strut
1 ea.
Information
Retrofitting must only be carried out if all other measures have already been performed, are documented
and if the customer complaint persists.
1
To remove engine cover (design cover), see  Workshop Manual '108319 Removing and installing
engine cover (design cover) (V6 Turbo)'.
2
Remove upper part of lock carrier, see  Workshop Manual '503819 Removing and installing upper
part of lock carrier'.
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Remove headlight mounting, see  Workshop Manual '941419 Removing and installing headlight
mounting'.
Information
The procedure for removing and installing is described for one side as an example. The procedure
for the other side is practically identical.
4
5
Replace strut  Strut -1- with new component version.
4.1
Unscrew screws  Strut -2- and put the strut  Strut -1- to the side.
4.2
Position new strut (Part No. 95B803228A).
4.3
Screw in screws  Strut -2- and tighten to
with torque 9 Nm (6.6 ftlb.) .
Remove boost pressure hose.
5.1
Loosen both hose clamps on the boost
pressure hose  Installation position of the
boost pressure hose.
Strut
5.2
6
Pull boost pressure hose off the throttle valve
and then off the charge-air cooler.
Replace connection piece for charge-air cooler 
Charge-air cooler connection piece -1- with new
component version.
6.1
Unscrew screws  Charge-air cooler
connection piece -2- and remove charge-air
cooler connection piece  Charge-air cooler
connection piece -1-.
Installation position of the
boost pressure hose
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Position new charge-air cooler connection
piece (Part No. 95B145784A), install new
screws (Part No. N 10470703) and tighten to
with torque 3.5 Nm (2.6ftlb.) .
Install boost pressure hose (Part No. 95B145993H).
7.1
To make installing easier, coat the boost
pressure hose at the connection points with
water. Do not use lubricant.
7.2
Push boost pressure hose onto the charge-air
cooler connection piece as far as the stop.
7.3
Push boost pressure hose onto the throttle
valve connection piece as far as the stop.
7.4
Align both ends with the relevant markings and tighten hose clamps.
Charge-air cooler connection piece
Install pulsation damper (Part No. 95B129953).
8.1
8.2
Position hose clamp  Pulsation damper -4(Part No. PAF107234) on pressure hose 
Pulsation damper -3-.
Push pressure hose for pulsation damper
 Pulsation damper -3- as far as it will
go onto the corresponding connection on
the connector of the charge-air cooler 
Pulsation damper -5-. Do not use lubricant.
8.3
8.4
9
Align pulsation damper  Pulsation damper
-1- on strut, install new screws  Pulsation
damper -2- (Part No. N 10661002) and
tighten to with torque 9 Nm (6.6 ftlb.) .
Pulsation damper
Push the pressure hose of the pulsation damper  Pulsation damper -3- onto the
connection of the charge-air cooler  Pulsation damper -5-, align it and tighten the hose
clamp  Pulsation damper -4-.
Install headlight mounting, see  Workshop Manual '941419 Removing and installing headlight
mounting'.
10 Install upper part of lock carrier, see  Workshop Manual '503819 Removing and installing upper
part of lock carrier'.
11 To install engine cover (design cover), see  Workshop Manual '108319 Removing and installing
engine cover (design cover) (V6 Turbo)'.
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Technical Information
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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), PCSS coding and part numbers specified below in the warranty claim:
APOS
Labor operation
21390111
Checking moulded hose
21394961
Reworking moulded hose
21394962
Reworking (turning) moulded hose
21394900
Reworking moulded hose (pulsation damper)
55180250
Checking upper parts of front lock
55181650
Adjusting upper parts of front lock
63151900
Removing and installing front apron
63171650
Adjusting retaining strip
21391961
Removing and installing moulded hose
I No.
PCSS coding:
Location (FES5)
2141A
Charge air hose at top left
Damage type (SA4)
1715
strained
Parts Info:
1)
Part No.
Designation
Qty.
95B145993H
Boost pressure hose
1 ea.
95B145784A
Connection piece
1 ea.
N 10470703
Countersunk screw
2 ea.
95B129953
Pulsation damper
1 ea.
PAF107234
Hose clamp
1 ea.
N 10661002
Oval-head screw
4 ea.
95B145993H
Boost pressure hose
1 ea.
N 10544401
Hose clamp
2 ea.
95B803228A
Strut
1 ea.
1) only if necessary
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References:
ENU
Technical Information
93/20
Workshop Manual '505619 Removing and installing front wheel housing liner'
Workshop Manual '631519 Removing and installing front apron'
Workshop Manual '108319 Removing and installing engine cover (design cover) (V6 Turbo)'
Workshop Manual '503819 Removing and installing upper part of lock carrier'
Workshop Manual '941419 Removing and installing headlight mounting'
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.
© 2021 Porsche Cars North America, Inc.
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