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SI M17 09 12
Cooling Systems

January 2013
Technical Service

This Service Information bulletin supersedes SI M17 09 12 dated November 2012.
PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED
VEHICLES BEFORE CUSTOMER DELIVERY OR THE NEXT TIME THEY ARE IN THE SHOP FOR
MAINTENANCE OR REPAIRS.
designates changes to this revision
SUBJECT

Service Action: Retrofit of the Engine Coolant Temperature Sensor
MODEL

R55
R56
R57
R58
All with automatic transmission and either the N16 or N18 engine
SITUATION

Internal corrosion could form in the engine coolant temperature sensor. This corrosion leads to internal bridging of the
contacts, which can cause an inaccurate engine temperature reading. This false reading could lead to difficulty in the
engine starting and/or a “Service Engine Soon” lamp being illuminated.
AFFECTED VEHICLES

This Service Action involves R55, R56, R57 and R58 MINI Cooper/Cooper S vehicles with the N16 or N18 engine
which were produced from 8/2010 to 3/2012.
In order to determine whether a specific vehicle has had this Service Action completed or is affected by this Service
Action, first check the B-pillar label for code 53. If code number 53 has been punched out, the campaign has already
been performed. If code number 53 has not been punched out, it will be necessary to utilize the "Service Menu" of
DCSnet (Dealer Communication System) or the Key Reader. Based on the response of the system, either proceed with
the corrective action or take no further action.
PROCEDURE

There are two approved repair procedures, depending on parts availability. Both procedures involve installing an
engine temperature sensor remotely and wiring this new sensor into the vehicle’s engine harness. Only perform one of
these recommended procedures when completing this Service Action.
Procedure One requires the replacement of the upper coolant hose with a modified hose that houses a new engine
temperature sensor. An adapter harness needs to be fitted to the car to utilize this new sensor.
or

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Procedure Two requires the installation of a new engine temperature sensor, with integrated wire harness,
installed in place of the thermostat bleeder screw.
Note: This Service Action does not apply to any N16 engine that had a thermostat replaced with P/N 11 53 7
534 521. Vehicles equipped with the N16 engine may have had repairs performed prior to this Service Action, so
installing this remote sensor and hose or the sensor in place of the bleeder screw is no longer required.
The 11 53 7 534 521 thermostat would need to be installed in conjunction with an engine electrical wiring harness
replacement. This thermostat already has an updated, replaceable engine coolant temperature sensor.
If the vehicle is in the workshop for this Service Action and also requires an engine wiring harness replacement:


Replace the engine wiring harness with the 11 53 7 534 521 thermostat.



Do not install the remote engine temperature sensor. Claim the labor operation “Check for 11 53 7 534 521
thermostat installation” in the Warranty Information section of this bulletin.



Affix the Service Action label to the B-pillar.

Checking for updated thermostat: The
11 53 7 534 521 thermostat has a
replaceable engine temperature sensor
(1).

PROCEDURE ONE

Remove the coolant hose (1). This hose
will not be reused.

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N18 engine only! Install spacer P/N 64
53 7 578 707 (1) on the coolant line as
shown.
Note: The spacer needs to stay in this
position when installing coolant hose
P/N 17 12 9 811 352 (next step).

Install the new coolant hose with
sensor P/N 17 12 9 811 352 (1).

Unplug connector X6279 from the
engine thermostat (1).

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Plug connector X6279 into the 4-pin
male connector (1) of adapter harness
P/N12 51 7 647 200. Insert the 4-pin
female connector (2) of the adapter
harness into the engine thermostat.
Plug the 2-pin female connector (3)
from the adapter harness into the
engine temperature sensor of hose P/N
17 12 9 811 352.

Secure the connector (1) with a cable
tie to the engine wiring harness.

Reinstall the intake components and vent/refill the cooling system (Repair Instruction 17 00 039).
PROCEDURE TWO

Remove the fresh air intake tube and the charge air intake tube from the air box to the turbo to gain access to the engine
harness at the thermostat.

The improved sensor (P/N 13 62 8 603
908) includes the temperature probe (1)
and insulating sleeve (2), a two-pin
female connector (3) for the map
thermostat, and a four-pin connector
(4) for the engine harness.

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Relieve the coolant pressure by
removing the reservoir cap, and then
re-tighten.

Remove the bleeder screw (1) from the
thermostat. This screw will not be
reused.

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The back of the temperature sensor is
slotted to accept a bladed screwdriver
(1). Install the sensor into the bleeder
screw hole, and torque to 2Nm.

Slide insulating sleeve (1) onto the
temperature sensor. The sleeve must
completely cover the sensor.

Install the two-pin female connector
(1) into the thermostat and the four-pin
male connector (2) into the engine
wiring harness.

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Secure the connector (1) with a cable
tie to the engine wiring harness.

Secure the wiring from the temperature
sensor (1) with a cable tie.

Reinstall the intake components and vent/refill the cooling system (Repair Instruction 17 00 039).
Note: This repair procedure involves draining a small quantity of coolant; refill the drained quantity with new MINI
Long-term Antifreeze/Coolant (50/50 mixture). Do not reuse the drained coolant.
PARTS INFORMATION

Procedure One
Part Number

Description

Quantity

12 51 7 647 200

Adapter cable

1

64 53 7 578 707

Spacer (N18 only)

1

17 12 7 647 009

Coolant hose

1

61 13 1 367 599

Cable tie

1

or
Procedure Two

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Part Number

Description

Quantity

13 62 8 603 908

Temperature sensor

1

61 13 8 383 722

Cable tie

2

LABEL INSTRUCTIONS

This Service Action has been assigned code number
53. After the vehicle has been checked and/or
corrected, obtain a label (MD20–040) and:
A. Emboss your MINI dealerr warranty number in
the middle of the label (1);
B. Punch out code number 53 (2), printed on the
label; and
C. Affix the label to the B-pillar as shown.
If the vehicle already has a label from a previous Service Action/Recall Campaign, affix the new label next to the old
one. Do not affix one label on top of another one because a number from an underlying label could appear in the
punched-out hole of the new label.
WARRANTY INFORMATION

The repair described in this bulletin is covered under warranty regardless of time or mileage.
Reimbursement for this Service Action will be via normal claim entry utilizing the following information.
Defect Code:

00 17 57 01 00

Procedure One
Labor Operation:

Labor Allowance:

Description:

00 61 518

Refer to KSD2

Check for the 11 53 7 534 521
thermostat installation; no repair is
necessary.

00 60 947

Refer to KSD2

Replace the coolant line (hose) and
connect the adapter cable.

Sublet Code 4

See sublet
reimbursement
calculation below

Reimbursement for replacing the
drained quantity of antifreeze/coolant
(bulk container reference P/N 82 14 0
031 133, one gallon container. Do not
use this part number for claim
submission).

or

or
Procedure Two

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Labor Operation:

Labor Allowance:

Description:

00 61 556

4 FRU

Install coolant temperature sensor

See sublet
reimbursement
calculation below

Reimbursement for replacing the
drained quantity of antifreeze/coolant
(bulk container reference P/N 82 14 0
031 133, one gallon container. Do not
use this part number for claim
submission).

and
Sublet Code 4

Labor operation codes 00 61 518, 00 60 947 and 00 61 556 are Plus labor operations.
Refer to KSD2 for the corresponding flat rate unit (FRU) allowance. Enter the Chassis Number, which consists of the
last 7 digits of the Vehicle Identification Number (VIN). Click on the “Search” button, and then enter the applicable
flat rate labor operation in the FR code field.
Sublet calculation: MINI antifreeze/coolant (bulk container reference P/N 82 14 0 031 133 only) -- partial refill/used
quantity (50/50 mixture) at dealer net plus handling. Enter this material cost in sublet and itemize the amount in the
claim comment section.
[ MINI, a division of BMW of North America, LLC
Copyright © 2013 BMW of North America, LLC ]

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