SY, 399525 Noise Symptom/Jerking Or Spare Parts Requirements - Clicking Noise/Rough-Running Engine/Jerking Under Load With Respect To Transfer Gear: Programming All-Wheel Drive Control Unit/Checking Transfer Gear (SY 84/17): Tools
| Tool denomination | Type | Tool number | Image |
|---|---|---|---|
| PIWIS Tester 3 | Special tool | > 9900 | |
| VAS 5908 battery charger 90A | General workshop equipment | > VAS 5908 |
Information
These symptom-based repair instructions replace the instructions dated September 22, 2017.
Changes/additions'
Only modified transfer gears with GNC-coated plates are supplied from now on.
=> In the event of spare parts requirements for the control unit (contained in the servo motor), the existing type of transfer gear (with or without GNC-coated plates) must be checked and the part number of the control unit must be selected accordingly.
=> A transfer gear with GNC-coated plates is identified by the PR number "l'J2".
=> For more information, see also "Spare parts requirements" and "Software".
Information
Currently, a high percentage of warranty returned transfer cases are evaluated as "OK" during testing by the supplier.
For this reason, the two previous symptom-based repair instructions are being replaced by these symptom-based repair instructions:
- => "Eliminating noise symptoms - Re-programming control unit for all-wheel drive (Creaking noise from around the transfer case/SY0416) - => only relevant for vehicles from model year 2015 to 2016 and
- => "Eliminating symptoms - Engine: Replacing transfer case (Rough-running engine, vehicle jerks under load/SY2516) in Repair Group 39 - Final drive.
Information
The "transfer case" is designed as an active all-wheel drive system that is dynamically adapted to the respective driving state.
Power transmission between the front and rear axle is controlled electronically via the "all-wheel drive servo motor (transfer case)" and the multi-plate clutches integrated in the transfer case.
=> On all-wheel drive vehicles, the drive train can become strained at low speeds and when 'he steering is turned sharply when "Off-road mode" is activated, depending on design.
- Under extreme conditions, the drive train can also become strained when "Off-road mode" is deactivated.
- Customers with little experience with all-wheel drive vehicles can interpret this behavior as a fault, which n turn can result in incorrect diagnoses in the workshop.
Change overview
| Version | Date | Change |
|---|---|---|
| 0 | 2017 | First publication |
| 1 | November 2, 2017 |
The Information note under "Symptom 1", the first bullet point was amended to read: "that were produced from model year 2015 to model year 2016 and" |
| 2 | February 6, 2018 | under Symptom 2-Step 2.4 was added. |
| 3 | February 18, 2019 | Under Symptom 2-Work Procedure-The Notice after Step 2, first sentence was changed to The following software update via 'Programming Code' may not be used on vehicles before model year 2015. |
| 4 | May 29, 2021 | Part numbers added |
Vehicle Type:
Cayenne (VR6 - 92A)/Cayenne S (92A)/Cayenne GTS (92A)/Cayenne Turbo (92A)/Cayenne Turbo S (92A)/Cayenne S Diesel (V8 -92A)
Equipment:
With Hang-on transfer gear
Differentiation:
Information
Determine type of transmission or the software - Transmission has vanes without GNC coating or with GNC coating:
Overview of required software versions in the control unit and the corresponding servo motor part number.
| Transmission without GNC (coating): up to December 31, 2020 | Transmission without GNC (coating): from January 1, 2021 | Transmission with GNC (coating): up to December 31, 2020 | Transmission with GNC (coating): from January 1, 2021 | |
|---|---|---|---|---|
| E2 1 vehicles up to model year 2014: | Software version: 0947
Part No. of control unit software
(can be read out using the PIWIS Tester): 0C2927755 K Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.09 |
Software version: 0948 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AD Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.D |
Software version: 1150 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 T Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755 |
Software version: 1151 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AB Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755.B |
| E2 1 up to model year 2014 Cayenne S Diesel |
Software version: 0947 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 K Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.09 |
Software version: 0948 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AD Related Porsche Part No. of control unit hardware (servo motor in the PET): 7P5.927.769. B |
Software version: 1150 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 T Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755 |
Software version: 1151 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AB Related Porsche Part No. of control unit hardware (servo motor in the PET): 7P5.927.769 |
| PR number: (PIWIS Tester: Diagnostics => Vehicle order F7 Additional menu => Maintenance of vehicle data => Transfer gear differentiation) => The PR number must be updated manually to the new version with GNC plates if the transfer gear is replaced. LU2 - Transfer gear reinforced |
PR number: (PIWIS Tester: Diagnostics => Vehicle order F7 Additional menu => Maintenance of vehicle data => Transfer gear differentiation) => The PR number must be updated manually to the new version with GNC plates if the transfer gear is replaced. LU2 - Transfer gear reinforced |
|||
| E2 II vehicles from model year 211fc : | Software version: 1010 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 S Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.12 |
Software version: 1012 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AE Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.E |
Software version: 1150 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AA Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755.A |
Software version: 1151 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AC Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755.C |
| E2 II from model year 2015 Cayenne S Diesel |
Software version: 1010 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 S Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.618.755.12 |
Software version: 1012 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AE Related Porsche Part No. of control unit hardware (servo motor in the PET): 7P5.927.769.C |
Software version: 1150 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AA Related Porsche Part No. of control unit hardware (servo motor in the PET): 958.927 .755.A |
Software version: 1151 Part No. of control unit software (can be read out using the PIWIS Tester): 0C2927755 AC Related Porsche Part No. of control unit hardware (servo motor in the PET): 7P5.927.769.A |
| PR number: (PIWIS Tester: Diagnostics => Vehicle order Additional menu => Maintenance of vehicle data => Transfer gear differentiation) => The PR number must be updated manually to the new version with GNC plates if the transfer gear is replaced. LU2 - Transfer gear reinforced |
PR number: (PIWIS Tester: Diagnostics => Vehicle order Additional menu => Maintenance of vehicle data => Transfer gear differentiation) => The PR number must be updated manually to the new version with GNC plates if the transfer gear is replaced. LJ2 - Transfer gear reinforced |
Information
The customer complaint about a clicking noise (from the servo motor) can only occur on vehicles:
- that were produced from model year 2015 to model year 2016 and
- with a software version lower than version 1010 in the all-wheel drive control unit.
Subject:
All-wheel drive servo motor (transfer gear)
Symptom
Clicking noises can come from around the transfer gear when driving slowly or when manoeuvring in a yard or car park.
Cause:
Clicking noises can come from around the transfer gear when manoeuvring the vehicle (or driving slowly) due to activation of the transfer gear servo motor.
Remedial Action:
Before doing any other work, the symptom must be simulated using a test procedure:
(Opening the door windows can be helpful when evaluating noises).
- Conditions for this test procedure:
- Activate the Start/Stop function and
- deactivate all sources of noise in the vehicle (Entertainment, ventilation, etc.).
- A multi-storey car park can be useful for acoustic reverberation.
- Procedure:
- On a straight stretch
- from speeds less than 20 km/h (10 mph)
- brake the vehicle to a standstill.
- The best way of finding the clicking noise is by driving slowly and then stopping the vehicle.
=> In the event of a distinct customer complaint, the clicking noise can already be heard on a straight stretch with partial load accelerations.
=> To correct the problem, re-program the all-wheel drive control unit, see 'Procedure' section below (Link to Procedure module must still be added!).
The measure is complete after programming the all-wheel drive control unit.
Information
The procedure described here is based on the PIWIS Tester III software version 35.800.
The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the instructions that must be followed.
A discrepancy may arise with later software versions for example.
Information
The description below contains the text 'With regard to 2'; 'Symptom 2', etc.
=> However, 'With regard to 1'; 'Symptom 1', etc. is relevant only for model veirs 2..15 and 2016.
=> The description for '1' is not relevant for other model years.
With regard to 2:
Hang-on transfer gear => see "Symptom 2" below
Symptom 2:
Symptoms to be checked:
- Rough-running engine or
- the vehicle vibrates or
- the engine jerks under load.
Information
Generally, the vehicle can start Jerking when driving in tight corners with a small radius and when Off-road mode is activated.
This behavior is perfectly normal for all-wheel drive vehicles and is not a defect on the vehicle.
NOTE: NOTIFICATION
Driving with connectors on chassis components or control units disconnected.- Bearings in transfer case can be damaged.
→ Drive vehicle only at a maximum speed of 30 mph (50 km/h).
→ Do not drive vehicle in the upper load range or at full throttle.
→ During Diagnosis of a vibration, a defective front axle shaft can cause a vibration and is masked when the Transfer case is disconnected as torque is no longer applied to the front drive system in the same manner.
- Carry out the test procedure under the following conditions:
- On a straight stretch
- from speeds less than 20 km/h (10 mph)
- accelerate the vehicle in the partial load range.
During this test procedure, if:
- jerking can be felt, the test procedure under See (below) must also be carried out in order to determine the exact cause.
- no jerking is felt, see the information below about normal vehicle behavior:
Information
Generally, the vehicle can start jerking when driving in tight corners with a small radius and when Off-road mode is activated.
This behavior is perfectly normal for all-wheel drive vehicles and is not a defect on the vehicle.
Information
Generally, the vehicle can start jerking when driving in tight corners with a small radius and when Off-road mode is activated.
This behavior is perfectly normal for all-wheel drive vehicles and is not a defect on the vehicle.
- Depending on equipment:
- with PTV PLUS (controlled rear-differential lock) - I-no. 1Y1 => continue with See
- without front/rear differential lock - I-no. 1Y0 => continue with 3.1
- 2.1 Disconnect connector on the rear-differential lock control unit, see > 397519 REMOVING AND INSTALLING CONTROL UNIT FOR REAR-DIFFERENTIAL LOCK
- 2.2
Carry out the test procedure under the following conditions, see See
:
=> Disconnecting the connector should prevent the vehicle from jerking due to a higher rear-differential lock locking value:
=> If the problem occurs, continue with 2.3.
=> If the problem no longer occurs, the rear final drive must be replaced, see > 398819 REMOVING AND INSTALLING ALL-WHEEL FINAL DRIVE and
- 2.3 Re-connect connector on the rear-differential lock control unit, see > 397519 REMOVING AND INSTALLING CONTROL UNIT FOR REAR-DIFFERENTIAL LOCK
- If jerking is felt during the test procedure under step See
, the following test procedure must still be carried out,
see See
to See:
- 3.1 Disconnect connector
on center differential lock
(plug connection on transfer gear servo motor).
Connector on rear-differential lock control unit must be inserted.
- 3.2
Carry out the test procedure under the following conditions:
- On a straight stretch
- from speeds less than 20 km/h (10 mph)
- accelerate the vehicle in the partial load range.
=> If the problem occurs, the transfer gear or rear final drive must be ruled out as the cause.
=> Avoid replacing these components.
=> If the problem no longer occurs, the hang-on transfer gear must be replaced, see > 396519 REMOVING AND INSTALLING TRANSFER GEAR
- 3.3
Re-connect connector on center differential lock.
End of action required.
NOTE: NOTIFICATION
The following software update via 'Programming Code' may not be used on vehicles before model year 2015.- Malfunctions in the system
→ Use the software update via "programming code" only for model year 2015 to 2016 vehicles.
Tools:
- > 9900 - PIWIS Tester 3 with PIWIS Tester software version 35.800 (or higher) installed
- Battery charger with a current rating of at least 90 A, e.g. > VAS 5908 - VAS 5908 battery charger 90A
NOTE: NOTIFICATION
Fault entry in the fault memory and control unit programming aborted due to low voltage.- Increased current draw during diagnosis or control unit programming can cause a drop in voltage, which can result in one or more fault entries and the abnormal termination of the programming process.
→ Before starting control unit programming, connect a battery charger or power supply, suitable for AGM type batteries, recommended current rating of 90A fixed voltage 13.5V to 14.5V.
NOTE: NOTIFICATION
Control unit programming will be aborted if the Internet connection is unstable.- An unstable Internet connection can interrupt communication between PIWIS Tester and the vehicle communication module (VCI). As a result, control unit programming may be aborted.
→ During control unit programming, always connect PIWIS Tester to the vehicle communication module (VCI)
→ via the USB cable.
NOTE: NOTIFICATION
Control unit programming will be aborted if the vehicle key is not recognized- If the vehicle key is not recognized in vehicles with Porsche Entry & Drive, programming cannot be started or will be interrupted.
→ Switch on the ignition using the original vehicle key. To do this, replace the original vehicle key in the ignition lock with the plastic key fob if it was previously removed at the start of this procedure.
- Malfunctions in the system
- 3.1 Disconnect connector
on center differential lock
(plug connection on transfer gear servo motor).
Work Procedure:
- Preliminary work
Carry out general preliminary work for control unit programming as described in
> WM 9X00IN BASIC INSTRUCTIONS AND PROCEDURE FOR CONTROL UNIT PROGRAMMING USING THE PIWIS TESTER (CAYENNE, CAYENNE GTS & CAYENNE TURBO S) - section on "Preliminary work"
- Re-program all-wheel drive control unit.
The basic procedure for programming a control unit is described in the Workshop Manual
> WM 9X00IN BASIC INSTRUCTIONS AND PROCEDURE FOR CONTROL UNIT PROGRAMMING USING THE PIWIS TESTER (CAYENNE, CAYENNE GTS & CAYENNE TURBO S) - section on "Programming"
Fire specific information on control unit programming during this campaign, see table below.
Required PIWIS Tester software version: 35.800 (or higher) Type of control unit programming: Control unit programming using the "Campaign" function in the Additional
menu on the PIWIS Tester by entering a programming code.Programming code: G5N7B Programming sequence: Read and follow the information and instructions on the PIWIS Tester during the guided programming sequence.
The fault memory is first deleted during the programming sequence. If the message appears informing you that certain fault memory entries could not be deleted, acknowledge the message by pressing >> and start control unit programming. During programming, the all-wheel drive control unit will be re-programmed and then re-codedautomatically.
Do not interrupt programming and coding.
Once the control units have been programmed and coded, the PIWIS Tester will prompt you to switch the ignition off and then back on again after a waiting time of approx. 10 seconds.Programming time (approx): 2 minutes Data record programmed during this campaign (software part number): 0C2.927.xxx.S
Following control unit programming, the Porsche part number can be read out of the 'All-wheel drive' control unit in the => 'Extended identification' menu using the PIWIS Tester.Procedure in the event of error messages appearing during the programming sequence: > WM 9X00IN BASIC INSTRUCTIONS AND PROCEDURE FOR CONTROL UNIT PROGRAMMING USING THE PIWIS TESTER (CAYENNE, CAYENNE GTS & CAYENNE TURBO S) - section on "Fault finding" Procedure in the event of abnormal termination of control unit programming: Repeat control unit programming by restarting programming.
If this is not possible, restart the PIWIS Tester and then execute control unit programming again. - Subsequent work
- 3.1
Create a Vehicle Analysis Log (VAL) and mark it with the attribute "Following repairs".
> Creating Vehicle Analysis Log (VAL)
- 3.2
Carry out general subsequent work for control unit programming as described in
> WM 9X00IN BASIC INSTRUCTIONS AND PROCEDURE FOR CONTROL UNIT PROGRAMMING USING THE PIWIS TESTER (CAYENNE, CAYENNE GTS & CAYENNE TURBO S) - section on "Subsequent work"
- 3.1
Create a Vehicle Analysis Log (VAL) and mark it with the attribute "Following repairs".
Invoicing:
Only for model year 2015 to 2016 vehicles: The work involved is invoiced under the labor operation:
Information
Labor operations for standard measures and standard repairs are not listed here.
These standard labor operations must be used in accordance with the Labor Operation List.
| Labor operation number | Description | I-No. |
|---|---|---|
| 39952500 | Programming all-wheel drive control unit | - |
For invoicing and documentation using PQIS, enter the following coding, depending on the customer complaint:
- "Creaking noise" (clicking noise):
Location key (FES5) 39780 Transfer gear servo motor Damage code (SA4) 2015 creaking - "Rough-running engine, vehicle vibrates or engine jerks under load":
Location key (FES5) 39650 Transfer gear Damage code (SA4) 1313 vibrating, shaking
References:
> Creating Vehicle Analysis Log (VAL)
> WM 9X00IN BASIC INSTRUCTIONS AND PROCEDURE FOR CONTROL UNIT PROGRAMMING USING THE PIWIS TESTER (CAYENNE, CAYENNE GTS & CAYENNE TURBO S) - section on "Subsequent work"
> 397519 REMOVING AND INSTALLING CONTROL UNIT FOR REAR-DIFFERENTIAL LOCK