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

93/20

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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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Technical Information

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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.