Technical product information
Topic
Market
area

Poor Engine Running Complaints (Misfires) Petrol Engines Only
Australia E04 Bentley rest Asia and Australia (6E04),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)
Bentley

Brand
Transaction
2051187/9
No.
Level
EH
Status
Approval
Release
date
New customer code

Object of complaint
Complaint type
Position
engine -> engine operation -> power development -> throttle response functionality -> misfire
New workshop code
Object of complaint
Complaint type
Position
engine -> operation, engine control -> engine control unit functionality -> misfire

Vehicle data
All Petrol Engine Variants
Sales types
Type
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Brand Designation Engine code Gearbox code Final drive code
E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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E
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*
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E
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*
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E
*
*
*
E
*
*
*
E
*
*
*
E
*
*
*

Documents
Document name
master.xml

INTERNAL

Technical product information
Poor Engine Running Complaints (Misfires) Petrol Engines Only

Transaction No.: 2051187/9

Customer statement / workshop findings
•

Poor engine running

•

Reduced power

•

Engine warning lamp illuminated

•

Symptom related DTC’s evident within the applicable engine control unit(s)

Technical background
Technical Product Information (TPI) to assist retailers when diagnosing poor engine running or misfires
VERY IMPORTANT: In the event the misfires are multiple random misfires which are found during PDI with the following
symptoms:
Multiple random cylinder misfire DTC’s evident found during PDI with DTC P030000: Random/Multiple Cylinder Misfire
Detected (misfires on multiple cylinders) within the following control units
•

V8 - ECM 1 V8 (Address 01) ECM control unit

•

W12 - ECM 1 (Address 01) and/or ECM 2 (Address 11)

The operative must first refer to TPI 2068273/- before conducting any other diagnosis or repair work

Production change
Not Applicable

Measure
NOTICE
The following instructions should be carried out sequentially to ensure the root cause and analysis of the concern are identified without
unnecessary work or repetitive actions taking place
Section 1 - Vehicle History and Current Status
If possible ask the customer for a precise description of the concern, noting when the concern occurs and if any particular conditions have a
direct influence on the engine running or misfire(s), for example, “The concern only occurs with a low fuel level within the fuel tank” or, “Occurs
only under hard acceleration”. Ask the customer if the vehicle has been modified or updated in any way including non approved software
modifications to the engine control unit(s)
Ensure the customer is using the correct minimum fuel octane rating (refer to fuel filler flap label for the minimum grade in your region). Check the
customer is using the correct engine lubrication oil type if and when topping up, and if advised on the service schedule is using G17 fuel additive
Check the vehicle service history, pay particular attention to recent work that may potentially cause poor engine running or a misfire
Conduct a vehicle diagnostic check, note all Diagnostic Trouble Codes (DTC) present.
Check if the vehicle is currently exhibiting the reported concern, a road test may be required to confirm. If a misfire or poor engine running is
evident DO NOT test drive the vehicle
Please record as much information as possible including the driving style and environmental conditions up to and at the time of the failure, this
may be required if a DISS query is raised
If no relevant fault codes are stored and poor engine running or a misfire is not present ask the Customer to demonstrate the concern, if the
concern cannot be replicated do not continue with this TPI, explain to the customer that since the concern is not present and fault codes are not
stored it is not possible to carry out any diagnosis or repair
If fault codes are stored but poor engine running or misfire is not present continue to section 2 only, ask the Customer to demonstrate the
concern. If the concern cannot be recreated and no issue is detected during the visual check or road test do not continue with this TPI, explain to
the customer that since the concern is not present it is not possible to carry out any diagnosis or repair, explain what analysis has actually been
carried out
If the Customer complains for a second separate instance of poor engine running or misfire and a relevant fault code is present but the vehicle
does not have poor engine running or misfire continue to work through this document, during Section 3 - Analysis / Component Substitution it is
only possible to conduct a visual inspection of any removed component, it would not be advisable to exchange components unless poor running
or a misfire is actually present

INTERNAL

Section 2 - Initial Visual Checks
Complete a “Battery Condition Check” Refer to Rep.Gr 27
Conduct a visual check within the engine bay, engine covers should be removed to allow a thorough inspection. If visible, pay particular attention
to the condition of Ignition Coils, Fuel Injectors, Electrical Connectors and Wiring loom condition, do not remove any additional parts at this stage
unless an issue is observed and further analysis is required
Check vehicle fluid levels, including - fuel, engine lubricating oil, engine coolant, look for signs of contamination or leaks
Any observations that may be the cause of poor engine running / misfire should be investigated and corrected at this point
Section 3 - Analysis / Component Substitution
Considering the information gathered within sections 1 and 2, carry out a controlled component substitution for any specific cylinders that
exhibit a concern, for example - if there is a fault code for cylinder five misfire exchange cylinder five Ignition coil with an ignition coil from another
cylinder, check to see if the fault moves with the ignition coil. It is recommended to move only one component at any one time usually starting with
the easiest component to change, for example move ignition coil first, then sparking plug and finally fuel injectors
If components are removed and show signs of significant carbon deposit or oil contamination please continue to section 4 - Figure 1

Figure 1

Section 4 – Raise a DISS Query
After completing sections 1, 2 and 3 if the root cause of the poor engine running / misfire has not been identified continue to raise a DISS query.
Images accompanying a DISS query must be of a quality shown in Figures 2 and 3

Figure 2

INTERNAL

Figure 3

Warranty accounting instructions
Warranty type - 110 or 910
Damage service numbers
•

Injectors: 24 40

•

Ignition Coils: 28 20

•

Spark Plugs: 28 70

Damage code
00 55
Labour Operation times

Section 1 - Vehicle history and current status (all models)
06 89 00 00 - Review History (Vehicle preparation) - 20 TU
01 29 00 03 - Self-diagnosis - 30 TU
01 21 00 00 – Road test - 50 TU
Section 2 - Initial visual checks (all models)
27 06 01 00 - Battery Health Check - 10 TU
Section 3 - Analysis / component substitution
W12 Engine Derivative
12 fuel injectors remove and refit
Low pressure:
24 41 19 00: Fuel rail remove + reinstall - 170 TU
24 40 20 50: Injectors remove + reinstall x12 - 80 TU New GT/C
24 40 20 50: Injectors remove + reinstall x12 - 50 TU Bentayga and New Flying Spur
24 40 19 50: Injector remove + reinstall x1 - 10 TU (low pressure)
High pressure:
24 41 19 03: Fuel rail remove + reinstall - 340 TU - Bentayga
24 41 19 01: Fuel rail remove + reinstall - 430 TU - New GT/C and New Flying Spur

INTERNAL

24 40 20 53 - Injectors remove + reinstall x12 - 60- TU - Bentayga
24 40 20 51: Injectors remove + reinstall x12 - 340 TU - New GT/C
24 40 20 51: Injectors remove + reinstall x12 - 100 TU - New Flying Spur
24 40 19 53: Injector remove + reinstall x1 - 10 TU - All models
Spark plugs remove and refit
28 70 20 00: Sparking plugs remove + reinstall x12 - 200 TU (Bank 1+2)
28 70 19 00: Sparking plug remove + reinstall x1 - 90 TU (Bank 1)
28 70 19 01: Sparking plug remove + reinstall x1 - 20 TU (Bank 2)
Ignition coils remove and refit
28 20 20 00: Ignition coils remove + reinstall x12 - 170 TU (Bank 1+2)
28 20 19 00: Ignition coil remove + reinstall x1 - 80 TU (Bank 1)
28 20 19 01: Ignition coil remove + reinstall x1- 10 TU (Bank 2)

V8 Engine Derivative
4.0 Litre V8
Fuel injectors remove and refit - x8
24 40 20 70: Injectors remove + reinstall x8 - 120 TU (Bank 1+2)
Fuel injectors remove and refit - x4
24 40 20 72: Injectors remove + reinstall x4 - 70 TU (Bank 1)
24 40 20 71: Injectors remove + reinstall x4 - 50 TU (Bank 2)
24 41 19 22: Fuel rail remove + reinstall - 440 TU (Bank 1)
24 41 19 21: Fuel rail remove + reinstall - 210 TU (Bank 2)
Sparking plugs remove and refit
28 70 20 20: Sparking plugs remove + reinstall x8 - 270 TU (Bank 1+2)
28 70 20 22: Sparking plugs remove + reinstall x4 - 150 TU (Bank 1)
28 70 20 21: Sparking plugs remove + reinstall x4 - 170 TU (Bank 2)
Ignition coils remove and refit
28 20 20 20: Ignition coils remove + reinstall x8 - 230 TU (Bank 1+2)
28 20 20 22: Ignition coils remove + reinstall x4 - 140 TU (Bank 1)
28 20 20 21: Ignition coils remove + reinstall x4 - 160 TU (Bank 2)

6.75 Litre V8
Fuel injectors remove and refit - x8
24 40 20 00: Injectors remove + reinstall x8 - 410 TU (Bank 1+2)
Fuel injectors remove and refit - x4
24 40 20 01: 4 Injectors remove + reinstall - 270 TU (Bank 2)
24 40 20 02: 4 Injectors remove + reinstall - 230 TU (Bank 1)
Sparking plugs remove and refit - x8
28 70 20 00: 8 Sparking plugs remove + reinstall - 160 TU (Bank 1+2)

INTERNAL

Ignition coils remove and refit x8
28 20 20 20: 8 Ignition coils - remove + reinstall - 230 TU (Bank 1+2)

V6 Engine Derivative
Fuel injectors remove and refit x6
24 41 20 30: Fuel rail remove + reinstall - 250 TU (Bank 1+2)
24 40 20 80: Injectors remove + reinstall 6 off - 50 TU (Bank 1+2)
Fuel injectors remove and refit x3
24 41 19 32: Fuel rail remove + reinstall - 140 TU (Bank 1)
24 40 20 82: Injectors remove + reinstall x3 - 30 TU (Bank 1)
Or
24 41 19 31: Fuel rail remove + reinstall - 140 TU (Bank 2)
24 40 20 81: Injectors remove + reinstall x3 - 30 TU (Bank 2)
Spark plugs remove and refit
28 70 20 30: Sparking plugs remove + reinstall x6 - 170 TU (Bank 1+2)
28 70 20 32: Sparking plugs remove + reinstall x 3 - 100 TU (Bank 1)
28 70 20 31: Sparking plugs remove + reinstall x3 - 110 TU (Bank 2)
Ignition coils remove and refit
28 20 20 30: Ignition coils remove + reinstall x6 - 150 TU (Bank 1+2)
28 20 20 32: Ignition coils remove + reinstall x3 - 90 TU (Bank 1)
28 20 20 31: Ignition coils remove + reinstall x3 - 110 TU (Bank 2)

INTERNAL