Symptom-based workshop manual

Service
183/21 ENU

1035

1

Symptom - Rattling Noises from Around the Rear Axle: Checking Engine Mount
(SY 183/21)
Change overview:
Release

Date

Change

0

01/25/2022

•

First publication

1

11/28/2023

•
•
•

Order types added
Required parts changed
Test sequence revised

2

03/18/2024

•
•

Cause revised
Remedial Action revised

Model Line:

911 (992)

Model Year:

As of 2020 up to 2024

Equipment:

Dynamic engine mount (M-No. JQ3)

Concerns:

Rear engine mount

Symptom:

Customer complains about a rattling noise from the rear axle area while driving. It may only be possible to
notice the noise complaints in certain sections. For example, on uneven / wavy road sections.

Cause:

The cause may be the exhaustion of the maximum damping travel of the engine mounts, resulting in
contact with the decoupler plate of the engine mounts.This condition is characteristic of the engine
mounts, and does not indicate a defect in the parts.

Remedial
Action:

In the event of a complaint, the workshop must determine whether the noise is caused by defective
engine mounts, or if the noise is characteristic of the parts. Compare the noise using the sound file in the
enclosure and, if available, confirm the source of the noise using a targeted noise and vibration analysis
"PICO measurement".

Information
The reported noise does not necessarily indicate a defect in the engine mount. The installation of new
engine mounts can bring about a change in the reported noise. However, in most cases, replacement
does not result in any improvement.
Inform the customer about this and advise whether the customer wishes to replace the engine mounts
under these circumstances.

AfterSales

Mar 18, 2024
Page 1 of 12

1

Service
1035

Symptom-based workshop manual

ENU 183/21

Required parts and materials as needed
Information
No parts are required for checking engine mounts.

Parts Info:

Mar 18, 2024
Page 2 of 12

Part No.

Designation
– Location

Number

992199384F

 Hydraulic mount

2 pieces

PAF107838

 Hexagon flange bolt, M8 x 50
– Mounting for hydraulic mount on body

8 pieces

PAF104694

 Hexagon-head bolt, M12 x 1.5 x 70
– Engine carrier mounting

2 pieces

992199534A

 Cap
– Hydraulic mount

2 pieces

N 10742702

 Oval socket head bolt M8 x 25
– Screw for coolant line at connection point in engine
compartment

2 pieces

95557374901

 Round seal
– Coolant line

1 piece

95557374902

 Round seal
– Coolant line

1 piece

PAF909664

 Hexagon collar nut, self-locking
– Lower trailing arm on wheel bearing housing

2 pieces

PAF008674

 Hexagon flange bolt M12 x 1.5 x 105
– Lower trailing arm on wheel bearing housing

2 pieces

PAF008735

 Hexagon-head bolt, M12 x 1.5 x 95
– Rear axle carrier on rear axle carrier side section

2 pieces

PAF008673

 Hexagon-head bolt M12 x 1.5 x 110
– Rear axle carrier on rear axle carrier side section

2 pieces

PAF013814

 Sealing ring 14 x 18
– Coolant drain plug

2 pieces

AfterSales

Symptom-based workshop manual

Service
183/21 ENU

1035

992129260

 Hose clamp
– Intake pipe

2 pieces

PAF008955

 O-ring, 59 x 2.5
– Intake pipe

2 pieces

992145190A

 Sleeve
– Charge-air cooler on body

1 piece

N 91244501

 Hexagon-headl bolt (combination) combination screw,
M6 x 35
– Charge-air cooler on body

2 pieces

WHT008676

 Hexagon-head bolt, M12 x 1.5 x 45
– Strut on body

4 pieces

1

Additional parts required if chassis must be adjusted
9A700837900

Materials:

 Tie-wrap, A8.0 x 337
– Brake disc air guide

8 pieces

Required materials (usually already available in the Porsche Center)
Part No.

Designation
– Location

Quantity

00004330516

 Coolant additive, 20-liter/ 5. 28 gal container
– Cooling system

As required

Vehicles with refrigerant R1234yf
9A757390010

 Refrigerant compressor oil 1234yf
– Air-conditioning system

As required

....

 Refrigerant 1234yf
– Air-conditioning system

As required

Vehicles with refrigerant R134a
00004330579

 Refrigerant compressor oil R134a
– Air-conditioning system

As required

....

 Refrigerant R134a
– Air-conditioning system

As required

AfterSales

Mar 18, 2024
Page 3 of 12

1

Service

Symptom-based workshop manual

ENU 183/21

1035

Required tools
Tool:

•
•
•

VAS 611 015A - Vibration and noise analysis system
P90999 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 - 90-A battery charger. For
further information about the battery chargers to be used, see the corresponding Workshop Manual.
 Workshop Manual '2X00IN Battery trickle charge'

Additional required tools if the engine mounts must be replaced:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

Torque wrench, 0.4-2 Nm (0.3-1.5 ftlb.), e.g. VAS 6253A - Torque wrench, 0.4-2 Nm
(0.3-1.5 ftlb.)
Torque wrench, 2-10 Nm (1.5-7.5 ftlb.), e.g. V.A.G 1783 - Torque wrench, 2-10 Nm
(1.5-7.5 ftlb.)
Torque wrench, 6-50 Nm (4.5-37 ftlb.), e.g. V.A.G 1331A - Torque spanner, 6-50 Nm (4.5-37
ftlb.)
Torque wrench, 40-200 Nm (30-148 ftlb.), e.g. V.A.G 1332A - Torque wrench, 40-200 Nm
(30-148 ftlb.)
Torque wrench, 150-800 Nm (111-592 ftlb.), e.g. V.A.G 1601 - Torque wrench, 150-800 Nm
(111-592 ftlb.)
9769 - Retainer plate
9769/1 - Support
9822 - Assembly tool
9959 - Lowering device
VAS 6832 - Master Gear unit elevating platform
VAS 6932 - Transport system
VAS 6867 - Support plate
9696 - Filling device
9696/1 - Cover
VAS 6096/2 - Vacuum pump
9794 - Assembly aid
9796 - Socket wrench
VAS 6266A - Wheel fitting trolley
9453 - Access ramps
V.A.G 1274B - Cooling system testing unit
VAS 6929 - Vacuum-cleaner nozzle
VAS 231 001 - High-performance fan
VAS 6890 - Spring band clamp pliers
Air conditioning service unit for R1234yf, e.g.VAS 581 001A - air conditioning service unit
R1234yf or air conditioning service unit for R134a, e.g.VAS 6746A - air conditioning service
station R134a

Additional required tools for measuring and adjusting the assist systems
•
•

Mar 18, 2024
Page 4 of 12

9229/1 - Puller hook
9730 - Socket-wrench insert

AfterSales

Service

Symptom-based workshop manual

183/21 ENU

1035

1

VAS 6826 - Steering wheel balance
VAS 6830 - Wheel-alignment adapter for wheels with central lock
VAS 6918 - Quick-clamping unit
VAS 6927 - Tie-wrap pliers
VAS 6430/1A - Adjustment device with reflector
VAS 6430/3 - Mirror for adjustment device
VAS 6350A - Calibration unit
VAS 6430/6 - Night View Assist calibration unit
VAS 6350/2A - Spacing laser
VAS 6430/4 - Lane Keep Assist calibration board