Technical Service Bulletin
Topic

Bentayga - Air suspension warning light within the DIP - DTC's P089200 - C104707 C103B13 - Evident within Address 74

Market area

Australia E04 Bentley rest Asia and Australia (6E04),China 723 Volkswagen (Anhui)
Automotive CO (6723),China 796 VW Import Comp. Ltd (Vico), Beijing (6796),Germany E02
Bentley rest Europe (6E02),Japan E03 Bentley Japan (6E03),Korea, (South) E08 Bentley
South Korea (6E08),United Arab Emirates E06 Bentley Middle East and Africa (6E06),
United Kingdom E01 Bentley UK (6E01),United States E05 Bentley USA and rest America
(6E05)

Brand

Bentley

Transaction
2062261/6
No.
Level

EH

Status

Released for publishing

Release
date

Jun 30, 2025

Diagnostic trouble codes

Fault
symptom

Diagnostic address Diagnostic trouble code

Storage
state

0074 - Chassis
control

C104707: Level control valves mechanical
malfunction

static

0074 - Chassis
control

C104707: Level control valves mechanical
malfunction

Intermittent

0074 - Chassis
control

C103B13: Solenoid for level control system Open
circuit

static

0074 - Chassis
control

P089200: TCM Power Relay Sense Circuit
Intermittent

Intermittent

0074 - Chassis
control

C103B13: Solenoid for level control system Open
circuit

Intermittent

0074 - Chassis
control

P089200: TCM Power Relay Sense Circuit
Intermittent

static

New customer code

Object of complaint

Complaint type

chassis -> damping\suspension regulation -> roll compensation

functionality -> operation
sequence incorrect

information, navigation, communication, entertainment -> information
display symbols -> stabilizer bar decoupling indicator display

functionality -> activates
without cause

information, navigation, communication, entertainment -> indicator
display symbols -> driving dynamics regulation (ESC) indicator
display

functionality -> activates
without cause

lighting, signaling -> acoustic signals -> warning signal for damper
/suspension regulation

functionality -> warning
tone sounds without
cause

Position

New workshop code

Object of complaint

Complaint type

power, vehicle electrical system, data transfer -> power supply ->
high-voltage battery

electrical -> voltage too
high

power, vehicle electrical system, data transfer -> battery
management -> de-energized state

functionality -> cannot be
activated

Vehicle data
Bentayga Series
Sales types

Type MY

Brand Designation Engine code Gearbox code Final drive code

4V1* 2017 E

*

*

*

ZV1* 2023 E

*

*

*

4V1* 2019 E

*

*

*

4V1* 2018 E

*

*

*

ZV1* 2024 E

*

*

*

4V1* 2021 E

*

*

*

4V1* 2020 E

*

*

*

4V1* 2023 E

*

*

*

4V1* 2022 E

*

*

*

4V1* 2024 E

*

*

*

Documents
Document name
master.xml

Position

Technical Service Bulletin 2062261/6
Technical Service Bulletin
Bentayga - Air suspension warning light within the DIP - DTC's P089200 - C104707 - C103B13
- Evident within Address 74

Transaction No.:

2062261/6
Release date: Jun 30,
2025

Condition
Customer statement:
Air suspension warning light within the DIP
Workshop findings:
One or a combination of the DTC’s shown below are evident within address 74
•

P089200 - Symptom Code 3145792 - TCM Power Relay Sense Circuit Intermittent (Level Control Valves Open
Circuit)

•

C103B13 - 3145909 - Solenoid for level control system Open circuit

•

C104707 - 3211279 - Level control valves mechanical malfunction

Technical Background
Revision history
TPI 2062261/5 - Additional information has been added regarding the replacement of the air supply control unit
(electrical issue) or the solenoid valve block (mechanical issue) instead of replacing the complete air supply unit
NOTE: An electrical integrity check must be conducted before replacing any parts
The solenoid valve block and/or control unit must be replaced first (symptom dependent) before replacing the air
supply unit, in the event the issue is still evident and the air supply unit/compressor is suspected as being at fault, the
operative must request permission via DISS before replacing the air supply control unit

Production Solution
-

Service
NOTICE
Hint: Please also refer to TPI 2053492/- Air spring fault finding guidelines if the issue/symptom is not as
described within this TPI
WARNING
Vehicles which use a high voltage or 48 volt system MUST only be worked on by suitably qualified personnel
WARNING
Please ensure all guidelines within the repair manual are strictly followed when working on vehicles with a
high voltage or 48 volt system
1) Conduct a wiring integrity check between the valve block for adaptive suspension control unit (NX7) and the
Running gear control unit (J775)
NOTE: NX7 is located as shown in Figure 1 (On the air supply unit/opposite side to the valve block)

Figure 1

Please note: The pin locations are different depending on Model Year as detailed within the onward instructions:
21 Model year
T81aa Pin 79 + T3er Pin 1
T81aa Pin 59 + T3er Pin 3
T81aa Pin 35 + T10as Pin 1
T81aa Pin 75 + T10as Pin 2
20 Model year
T81aa Pin 79 + T3cs Pin 1
T81aa Pin 59 + T3cs Pin 3
T81aa Pin 35 + T10ax Pin 1
T81aa Pin 75 + T10ax Pin 2
17 to 19 Model year
T81aa Pin 79 + T3dc Pin 1
T81aa Pin 59 + T3dc Pin 3
T81aa Pin 35 + T10ax Pin 1
T81aa Pin 75 + T10ax Pin 2

TIP: Previous instances have highlighted the following after inspection:
•

Broken wires

•

Kinked wiring

•

Pin/s missing

•

Pin/s broken

•

Pin/s loose

2) Repair any broken or damaged wires as per Rep.Gr 97

Should no issues be found regarding the integrity/visual checks, continue with the onward instructions
In the event that a mechanical issue is suspected please conduct step 3
Or
Should an electrical issue be suspected please conduct step 4
3) Mechanical issue
In the event a mechanical issue is suspected, the operative should continue as follows:
NOTICE
In the event that one or a combination of the issues listed below is evident the operative must respond via a
new or existing DISS query, the operative should attach clear photographs of the issues found and await
feedback before proceeding
•

Check for water ingress within the air supply unit/valve block

•

Check for water ingress within the air supply hoses

•

Check the air filter is not blocked

•

Should none of the afore mentioned issues be evident - Replace the solenoid valve block (Figure 2)

Hint: The solenoid valve block can be replaced without the need to remove the air supply unit assembly from the
vehicle

Figure 2
•

Check to confirm the issue is now resolved and no DTC’s are evident
NOTICE

Should the issue still be evident respond via a new or existing DISS query and await feedback before
conducting any further work

Road test warranty claims will be cancelled, a road test is not required after conducting this process
4) Electrical issue
Should an electrical issue be evident issue and the wiring integrity checks were to specification, the operative should
continue as follows:
•

Replace the compressor control unit - Figure 3

Hint: The compressor control unit can be replaced without the need to remove the air supply assembly unit from
the vehicle

Figure 3

Hint: The control unit is secured to the air supply unit bracket using (x4) clips - To remove the control unit
disengage the clips using a non metallic tool then slide/remove the control unit from the bracket (Figure 4)
TIP: The clips can easily snap - Take care when refitting the new control unit

Figure 4
•

On completion check to confirm the issue is now resolved and no DTC’s are evident
NOTICE

Should the issue still be evident respond via a new or existing DISS query and await feedback before
conducting any further work

Road test warranty claims will be cancelled, a road test is not required after conducting this process

Warranty
Warranty Type

110 or 910

Damage Service Number

43 23

Damage Code

00 15

Time to conduct wiring integrity checks
Labour Operation Code

43 13 01 10

Time

80 TU

Wiring repairs
Labour Operation Code

97 09 41 52

Time

40 TU

Time to replace the solenoid valve block (Mechanical operational issues/water ingress)
Labour Operation Code
Time

43 23 19 00
40 TU

Time to remove and refit the compressor control unit (Electrical issues)
Labour Operation Code
Time

43 16 19 01 (Use 99 index until 27/07/23)
20 TU

Time to remove and refit the air supply unit (Must only be claimed if permission has been granted via DISS to
replace the complete air supply unit)
Labour Operation Code
Time

43 15 19 00
70 TU

Diagnosis time using ODIS
Labour Operation Code 01 50 00 00
Time as per ODIS log (Must not exceed 10 TU)
Time to energise and de-energise the 48 volt system
Labour Operation Code 93 10 00 00
Time 30 TU

Warranty claims for road test should not be submitted all road test claims will be cancelled

Required Parts and Tools
Refer to the ETKA parts catalogue