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SI M17 08 12
Cooling Systems

July 2014
Technical Service

This Service Information bulletin supersedes SI M17 08 12 dated January 2013.
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 which is integrated into the thermostat
housing (not replaceable). 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 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

First perform a preliminary check on the N16 Engine: Check for the installation of an updated thermostat (P/N
11 53 7 534 521). This updated thermostat with an improved engine temperature sensor is available, and may have
been installed during a previous repair.

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

Note: If this vehicle is also in for a repair which requires replacing the engine harness, do not continue with the
procedure below. Engine harness replacement will use a different style of thermostat (P/N 11 53 7 534 521).
Claim the labor operation “Check for 11 53 7 534 521 thermostat installation” in the Warranty Information section
of this bulletin and affix the Service Action label to the B-pillar.
Perform the following procedure for N18 and N16 engines that do not have the P/N 11 53 7 534 521 thermostat:
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.

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

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

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
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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.

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.

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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

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 56 01 00

Labor Operation:

Labor Allowance:

Description:

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00 61 518

Refer to KSD2

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

Refer to KSD2

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).

or
00 61 570
and

Sublet Code 4

Labor operation code 00 61 570 is a Plus labor operation.
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.
[ Copyright ©2014 BMW of North America, Inc. ]

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