Owner-Notified Service Action Q237: Engine Control
Module Reflash
3-DEC-12

No.: SWA12-09

Section: WARRANTY

SERVICE
BULLETIN

Market: USA

DESCRIPTION
A design issue has been identified on 2012-2013 model year Range Rover Evoque vehicles within the listed VIN
range. In wet driving conditions, following a rapid increase in speed after steady state driving modes, condensate
from the charge air cooler can build up inside the air induction system which can be drawn in to one of the
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, which means that the driver
noticeably experiences reduced power to accelerate until the next ignition cycle. Furthermore, the Engine
Malfunction Indicator Lamp may illuminate and an engine warning message will display in the instrument cluster
message center.
New engine control module software has been developed which introduces an alternative restricted performance
mode where engine performance, under certain conditions such as those triggered by the water ingestion
described above, will lessen the degree of restricted performance employed. It is highly likely that the condition
will clear when the ignition is cycled.
AFFECTED VEHICLES / OWNER NOTIFICATION
The VIN range of affected vehicles is CH000447 - DH721750. Owner notification is expected to commence the
week of 10 December 2012.
WORKSHOP PROCEDURES
Retailers are required to check DDW to ensure that the vehicle is affected by this Update Prior to Sale notice prior
to undertaking any rework 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.
Refer to Technical Bulletin Q237NAS: Service Action: Engine Control Module Reflash, for detailed repair
instructions.
PARTS
No parts required
TOOLS
IDS with latest IDS-DVD and Calibration File; first available on IDS-DVD131.08 v.119
Land Rover-approved Midtronics Vehicle Power Supply
WARRANTY
NOTE: Repair procedures are under constant review, and therefore times / prices are subject to change;
those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
Check DDW to ensure that the vehicle is affected by this program prior to undertaking any rework action. 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.
Warranty claims must be submitted quoting Program Code 'Q237' together with the relevant Option Code
from the table. SRO and parts information is 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 back into the workshop for this action
alone to be undertaken.

Jaguar Land Rover North America, LLC

555 MacArthur Boulevard

Mahwah, NJ 07430

This program is valid for a limited time only. Warranty claims with a repair date prior to the 30 November 2014
closure date must be submitted for payment within 30 calendar days of completion of the repair.
PROGRAM
CODE

OPTION
CODE

DESCRIPTION

Q237

B

Update Engine control module software

12.90.13

0.20

-

-

Q237

C

Update Engine control module software
Drive in / drive out

12.90.13
02.02.02

0.20
0.20

-

-

Normal Warranty policies and procedures apply

SRO

TIME
(HOURS)

PART NO.

QTY.

Service Action Q237: Sample Owner Letter
Service Action Q237: Engine Control Module Reflash
Dear Range Rover Evoque Owner,
Land Rover is conducting a no-charge Customer Satisfaction Program (Program Code Q237) for owners
of 2012-2013 model year Range Rover Evoque vehicles.

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What is the concern and what will Land Rover and your Land Rover retailer do?
Land Rover is writing to request that you bring your vehicle in for the installation of updated engine
management software which will improve your engine’s response in certain weather conditions.
Specifically, during the course of extended driving (40 minutes or more) in wet conditions, (such as heavy
rain) when your engine speed is steady, followed by a rapid increase in engine speed, it is possible that
an engine misfire may occur. Your engine is programmed to react to this misfire by initiating a restricted
performance mode to protect the exhaust catalyst, which means that the driver noticeably experiences
reduced power to accelerate until the driver has the opportunity to stop and restart the vehicle. If this
mode activates, the Engine Malfunction Indicator Lamp may illuminate and an engine warning message
will display in the instrument cluster message center.

Land Rover would like to install updated engine management software in your engine that will allow the
engine to respond with a restricted performance mode that is less disruptive to your driving experience. If
you have any concerns or questions, please feel free to contact your retailer.
What should you do?
Contact your preferred Land Rover retailer and provide the retailer with your Vehicle Identification
Number (VIN) and request a service date to complete the work required under Program Code Q237.
During this visit, please take the opportunity to discuss any aspect of your vehicle’s operation or
performance with the Retailer team who will be pleased to assist you with any questions you may have
regarding your vehicle in order for you to get the most out of its advanced features.
How long will it take?
The work will be carried out as quickly and efficiently as possible in order to minimize inconvenience to
customers and is expected to take approximately 15-30 minutes, although your retailer may need your
vehicle for a longer time due to service scheduling requirements and vehicle conditioning.
Attention Leasing Agencies: Please forward this notification to the lessee within ten (10) days.

Moved or no longer own a Land Rover?
If you are no longer the owner of this vehicle, Land Rover would appreciate the name and address of the
new owner (if known); please fill out and return the enclosed return postage-paid card.

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Additional Information?
Land Rover is working toward a solution to minimize the need for the vehicle to enter restrictive
performance mode in these limited circumstances. Such update is anticipated for the Spring of 2013 and
will be the subject of a future communication to you.

What should you do if you have further questions?
If you have any questions or concerns, please contact the Service Manager at your authorized Land
Rover retailer for assistance. If you have any queries or concerns that your local Retailer cannot address,
please contact the Land Rover Customer Relationship Center at 800-637-6837, Option 9, and one of our
representatives will be happy to assist you.

You can also contact Land Rover by email: Visit the website http://www.landroverusa.com, select
'Contact Us' and send an email from the ‘Email Land Rover’ link.
Should you have the need to contact Land Rover by mail, please use the following address:
Jaguar Land Rover North America, LLC
ATTN: Customer Relationship Center
555 MacArthur Boulevard
Mahwah, NJ 07430

Thank you again for selecting Land Rover; your ownership experience is very important to us. We
recognize this service visit may be an inconvenience to you. Land Rover, in cooperation with your
authorized Land Rover retailer, will strive to minimize any inconvenience to you caused by this program.

Sincerely,

sa

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Peter Pochapsky
Customer Experience Manager

Service Action Q237: Technical Q & A
Main Message:
During the course of extended driving (40 minutes or more) in wet conditions, (such as heavy rain)
when engine speed is steady, followed by a rapid increase in engine speed, it is possible that an engine
misfire may occur. The engine is programmed to react to this misfire by initiating a restricted
performance mode (i.e., reduced acceleration) to protect the exhaust catalyst, which means that the
driver noticeably experiences reduced power to accelerate until the driver has the opportunity to stop
and restart the vehicle. If this mode activates, the Engine Malfunction Indicator Lamp may illuminate
and an engine warning message will display in the instrument cluster message center. Land Rover
would like to install updated engine management software that will allow the engine to respond to these
conditions with a restricted performance mode that is less disruptive to the driving experience.
Q1

Why is Land Rover conducting this Customer Satisfaction Action?

A

See Main Message above.

Q2

Can you tell me more about what is wrong with the vehicles?

A

The condition is related to water (condensed from humid air) collecting in the engine air intake system
when vehicles cruise for 40 minutes or more at around 50 miles per hour, in wet conditions such as
heavy rain when engine speed is steady. Thereafter, such condensation may be sucked into the
number 3 cylinder of the engine in the event that a rapid engine speed increase is demanded by the
driver. In such event, the engine monitoring systems will detect a misfire and employ restricted
performance mode as a result along with the Engine Malfunction Illuminator Lamp and instrument
cluster warnings. The restricted performance mode clears itself after the vehicle is turned off and
restarted.

Q3

How would the customer become aware of potentially having this concern?

A

The customer will experience restricted performance of the vehicle while driving. The Engine
Malfunction Indicator Lamp may illuminate and an engine warning message will display in the
instrument cluster message center. The restricted performance mode will continue only until the engine
can be turned off and the ignition restarted.

Q4

Does this software update remedy the condition permanently?

A

This update improves the driving experience and lessens the restriction on acceleration. Land Rover is
working toward a solution to minimize the chance of the vehicle entering into restricted performance
mode during extended driving in wet conditions. Such update is anticipated for the Spring of 2013 and
will be the subject of a future communication.

Q5

Have there been any accidents or injuries?

A

There have been no reports of accidents or injuries relating to this concern of which Land Rover is
aware.

Q6

How was the condition discovered?

A

The condition was identified through Land Rover’s dealer technical field reporting process.

Q7

What will Authorised Repairers do to the vehicles?

A

Authorised Repairers will download the updated engine management software, which is a process that
takes approximately 15-30 minutes.

Q8

How long does it take for the software download?

A

The work will be carried out as quickly and efficiently as possible in order to minimise inconvenience to
customers and is expected to take no longer than 15-30 minutes to complete. Naturally, due to dealer
schedules, vehicles may be required for longer.

Q9

How do I know if my Range Rover Evoque vehicle is affected?

A

All owners of potentially affected vehicles will receive a letter inviting them to contact a Land Rover
dealer for the work to be carried out.

Q10

Can I continue to drive my vehicle until it has had the software update?

A

Yes. If you are driving in wet conditions such as heavy rain for 40 minutes or more at around 50 miles
per hour at a steady engine speed, then take care to avoid a subsequent rapid increase in speed, in
order to minimize the potential of a misfire to occur.

Note:

Please ensure that any Press enquiries are referred to the Jaguar Land Rover North America PR
office.