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TECHNICAL BULLETIN
Q255NAS1
18 SEP 2013

© Jaguar Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional Technicians with the knowledge, tools,
and equipment required to do the job properly and safely. It informs these Technicians of conditions that may occur on some
vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by 'do-ityourselfers'. If you are not a Retailer, do not assume that a condition described affects your vehicle. Contact an authorized Land
Rover service facility to determine whether this bulletin applies to a specific vehicle.

SECTION: 100-00

Service Action: Water Induced Misfire / Restricted Performance
AFFECTED VEHICLE RANGE:
Range Rover Evoque (LV)
Model Year:
2012-2013
VIN:
CH000447-DH769903

MARKETS:
NAS

CONDITION SUMMARY:
Situation: While driving in wet weather conditions, condensation may build up within the engine Charge Air
Cooler. Following a rapid increase in engine speed, this condensation could be drawn in to one of the engine’s
cylinders, causing the engine management system to sense a misfire. The engine is programmed to react to this
misfire by initiating a restricted performance mode to protect the exhaust catalyst. In this mode, the driver
noticeably experiences reduced power to accelerate until the engine is switched off and then restarted.
Furthermore, an engine warning message will display in the instrument cluster message center and the Engine
Malfunction Indicator Lamp may illuminate.
New components have been designed to limit condensation from building in the engine’s Charge Air Cooler to
prevent the restricted performance mode from initiating. Additionally, updated Engine Control Module (ECM)
software has been developed which changes the thresholds necessary to initiate the restricted performance mode
for this issue.

NOTE: If Program Code 'Q203' is open in DDW, update the Engine Control Module (ECM) software
as directed below and close campaign Q203; do not submit a second ECM software update claim under
Program Code Q255. If Program Code Q203 is not open in DDW, complete the ECM software update
and submit claim as per the details as shown below.

Action: Retailers are required to HOLD all affected vehicles in the above VIN range that are in their control and
refrain from releasing the vehicles for new or used vehicle sale pending completion of the rework action detailed
in this Technical Bulletin. Unsold vehicles should have this performed as part of the Pre-Delivery Inspection (PDI)
process. Affected vehicles already in the hands of customers should be updated at the next available opportunity.

PARTS:
Description

Part No. Qty.

VIN Range

Expected % of vehicles requiring this
part*

Charge Air Cooler venturi
tube

LR048122 1

CAN: CH000494DH769825
USA: CH000447DH706531

100
100

Charge Air Cooler grille kit

LR048135 1

All

100

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Pop rivet

LR049458 8

All

100

NOTE: * when ordering parts, order the expected percentage demand of parts identified only

SPECIAL TOOLS:

NOTE: This document is an 'Active Bulletin' that will display a functional programming shortcut if
accessed within a diagnostic session using SDD.
IDS with latest IDS-DVD and Calibration File; first available on DVD133.03 V.129
Jaguar Land Rover-approved Midtronics battery power supply
Refer to Workshop Manual / Service Instruction for any required tools

WARRANTY:

NOTE: Check DDW to ensure that the vehicle is affected by this program prior to undertaking any
rework action. Repair procedures are under constant review, and therefore times / prices are subject to
change; those quoted here must be taken as guidance only. Refer to the Repair Times Searcher (RTS) on
TOPIx to obtain the latest repair time. At the time of confirming a booking for vehicle repair, ensure that
all outstanding Service Actions are identified to ensure the correct parts are available and adequate
workshop time is allocated for repairs to be completed at one visit.

NOTE: If Program Code 'Q203' is open in DDW, update the Engine Control Module (ECM) software as
directed below and close campaign Q203; do not submit a second ECM software update claim under
Program Code Q255. If Program Code Q203 is not open in DDW, complete the ECM software update and
submit claim as per the details as shown below.
Warranty claims must be submitted quoting Program Code Q255 together with the relevant Option Code from the
table. The SRO and part information listed have been included for information only. The Option Code(s) that allows
for the drive in / drive out allowance can only be claimed if the vehicle is brought into the workshop for this action
alone to be undertaken.
This program is valid for a limited time only. Warranty claims with a repair date prior to the 30 June 2015 closure
date must be submitted for payment within 30 calendar days of completion of the repair.

CANADA ONLY
PROGRAM
CODE

OPTION
CODE

DESCRIPTION

Q255

B

Install venturi tube and grille to
Charge Air Cooler
Update Engine Control Module
software

Q255

C

Q255

L

SRO

TIME
(HOURS)

PARTS

QTY. /
VALUE

19.42.89/46 1.70
12.90.13
0.20

LR048122
LR048135
LR049458

1
1
8

Install venturi tube and grille to
Charge Air Cooler
Update Engine Control Module
software
Drive in/drive out

19.42.89/46 1.70
12.90.13
0.20
02.02.02
0.20

LR048122
LR048135
LR049458

1
1
8

Install venturi tube and grille to
Charge Air Cooler

19.42.89/46 1.70

LR048122
LR048135

1
1

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Q255

M

Install venturi tube and grille to
Charge Air Cooler
Drive in/drive out

LR049458

8

LR048122
LR048135
LR049458

1
1
8

PARTS

QTY. /
VALUE

19.42.89/46 1.70
12.90.13
0.20

LR048122
LR048135
LR049458

1
1
8

19.42.89/46 1.70
0.20
12.90.13
02.02.02
0.20

LR048122
LR048135
LR049458

1
1
8

19.42.89/47 1.70
12.90.13
0.20

LR048135
LR049458

1
8

19.42.89/47 1.70
12.90.13
0.20
02.02.02
0.20

LR048135
LR049458

1
8

19.42.89/46 1.70
02.02.02
0.20

USA ONLY
PROGRAM
CODE

OPTION
CODE

Q255

B

DESCRIPTION

NOTE: VIN CH000447DH706531 ONLY

SRO

TIME
(HOURS)

Install venturi tube and grille to
Charge Air Cooler
Update Engine Control Module
software
Q255

C
NOTE: VIN CH000447DH706531 ONLY
Install venturi tube and grille to
Charge Air Cooler
Update Engine Control Module
software
Drive in/drive out

Q255

F
NOTE: VIN DH706533DH769909 ONLY
Install grille to Charge Air Cooler
Update Engine Control Module
software

Q255

G
NOTE: VIN DH706533DH769909 ONLY
Install grille to Charge Air Cooler
Update Engine Control Module
software
Drive in/drive out

Q255

L

Install venturi tube and grille to
Charge Air Cooler

19.42.89/46 1.70

LR048122
LR048135
LR049458

1
1
8

Q255

M

Install venturi tube and grille to
Charge Air Cooler
Drive in/drive out

19.42.89/46 1.70
02.02.02
0.20

LR048122
LR048135
LR049458

1
1
8

NOTE: Normal Warranty policies and procedures apply

SERVICE INSTRUCTION:

NOTE: Some variation in the illustrations may occur, but the essential information is always correct.

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Step 1: all vehicles

1.

NOTE: It is not necessary to remove the front wheel and tire during the fender splash shield
removal procedure.

NOTE: Note the orientation of the Charge Air Cooler (CAC) prior to removal.
Remove the engine Charge Air Cooler (CAC) (see TOPIx Workshop Manual, Section 303-12B).

Steps 2-8: all Canada vehicles and USA vehicles only up to VIN DH706531

2.

NOTE: Charge Air Cooler (CAC) shown
removed from the vehicle for clarity.
Note the required orientation of the venturi prior
to installation.

3.

CAUTION: The venturi ring will need to
be slightly compressed during installation.
Make sure that the ring is not compressed
so that the ends of the ring overlap. Failure
to follow this instruction may result in
damage to the vehicle.
Note the acceptable deformation of the venturi
ring prior to installation.

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4.

CAUTION: Make sure that the sensor is
not damaged during the installation of the
venturi.
Note the position of the sensor.

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5. Insert the venturi in to the Charge Air Cooler.

6. Make sure that the venturi is correctly aligned.

7. Carefully slide the venturi forwards until it is
flush inside the Charge Air Cooler.
Carefully compress the venturi ring.
Slide the venturi in to the flush position.

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8. Rotate the venturi clockwise until you feel it
touch the bottom of the Charge Air Cooler.
Rotate the venturi counter-clockwise.
Rotate the venturi clockwise.

Steps 9-23: all vehicles

9.

NOTE: Upper section of Charge Air
Cooler shown; lower section similar.
Identify the eight (8) slots on the Charge Air
Cooler.

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10.
CAUTION: Make sure that upper
section of the Charge Air Cooler grille is
secured with all four (4) rivets before
attempting to rotate the assembly. Failure
to follow this instruction may result in the
dislodging of the rivet(s), resulting in
damage to the component.

NOTE: Upper section of Charge Air
Cooler shown; lower section similar.
Secure the Charge Air Cooler grille.
Install the Charge Air Cooler grille to the

Charge Air Cooler with the wider section at
the top of the Charge Air Cooler.
Install four (4) rivets to the upper section of
the Charge Air Cooler grille.
Rotate the assembly and install four (4) rivets
to the lower section of the Charge Air Cooler
grille.

11. Install the Charge Air Cooler (see TOPIx Workshop Manual, Section 303-12B).

12.
CAUTION: Ensure all ignition 'ON' / ignition 'OFF' requests are carried out; failure to
perform these steps may cause damage to control modules in the vehicle.

CAUTION: A Jaguar Land Rover-approved Midtronics battery power supply must be connected

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to the vehicle battery during IDS / SDD diagnosis / module programming.

NOTE: IDS must be loaded with DVD133.03 v.129 or later.
Connect the Jaguar Land Rover-approved Midtronics battery power supply to the vehicle battery.

NOTE: The Engine Control Module (ECM) may also be known as Powertrain Control Module (PCM).

13. Turn ignition 'ON' (engine not running).

14. Connect SDD to the vehicle and begin a new diagnostic session, by reading the VIN for the current vehicle
and initiating the data collect sequence.

15. Follow the SDD prompts.

16. Select 'Diagnosis' from the Session Type screen.

17. Select the 'Selected Symptoms' tab, and then select the following:
Powertrain > Engine system > Engine performance

18. Select 'continue'.

19. Select the 'Extras' tab.

20.
NOTE: The Engine Control Module (ECM) may also be known as Powertrain Control Module
(PCM).
Select Run to perform the 'Configure existing module – Powertrain control module' option.

21. Follow all on-screen instructions to complete this task.

22. Exit the current session.

23. Disconnect the IDS and the battery power supply from the vehicle.

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