TSBCHA072R1

GROUP
CHA
NUMBER
MODEL
2011-2014MY
Optima
(QF/TF/TFH)
DATE
072 (Rev 1, 9/13/2016)
August 2016
TECHNICAL SERVICE BULLETIN
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT CUSTOMER
SATISFACTION PROGRAM (CS1604)
 NOTICE
This bulletin has been revised to include additional information. New/revised
sections of this bulletin are indicated by a black bar in the margin area.
This bulletin provides information regarding the replacement of the flexible coupling in the Motor
Driven Power Steering (MDPS) on some 2011-2014 MY Optima (QF/TF/TFH) vehicles, produced
from August 12, 2010 to December 18, 2013. The MDPS unit may experience noise when
turning the steering wheel left or right, especially while the vehicle is stopped. Kia’s analysis has
identified that this condition occurs mainly in extremely high humidity states adjacent to warm
ocean waters due to the wear of the flexible coupling in the MDPS, after extended usage over
years. The extremely high humidity states adjacent to warm ocean waters include: Alabama,
Florida, Georgia, Hawaii, Louisiana, Mississippi, North Carolina, South Carolina, and Texas.
For vehicles sold or currently registered in extremely high humidity states adjacent to warm
ocean waters, replace the flexible coupling with a new one if it has not been previously replaced
under warranty. Before conducting the procedure, verify that the vehicle is included in the list of
the affected VINs.
For vehicles sold or registered in all other states, Kia is extending the warranty on the flexible
coupling in the MDPS from 5 years/60,000 miles to 10 years/unlimited mileage, starting from the
date of first service in order to ensure customer satisfaction. If the MDPS unit experiences noise
when turning the steering wheel left or right, replace the affected flexible coupling with a new
one.
File Under: 
Circulate To:
X General Manager


X Service Advisors

X Technicians

X Service Manager

X Parts Manager

X Body Shop Manager 
X Fleet Repair
Page 2 of 6
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT (CS1604)
 NOTICE
To assure complete customer satisfaction, always remember to refer to WebDCS
Warranty Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty
Coverage Inquiry) for a list of any additional campaigns that may need to be performed on
the vehicle before returning it to the customer.
Service Procedure:
1. Remove the crash pad lower panel (A)
by referring to “Body (Interior and
Exterior) → Interior → Crash Pad
→ Repair procedures” on KGIS.
A
2.
Loosen three (3) steering column
shroud retaining screws (B) and then
remove the steering column upper and
lower shrouds.
B
 NOTICE
When loosening the steering wheel
column shroud retaining screws,
turn the steering wheel 90° to the
left/right from aligned position.
3.
Disconnect the
connectors (C).
MDPS
electrical
C
TSB: CHA072 / CS1604 Rev 1 Optima (QF/TF/TFH) August 2016
Page 3 of 6
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT (CS1604)
4.
Disconnect the multifunction switch,
wiper and washer switch, airbag, and
heated steering wheel electrical
connectors.
5.
Loosen both steering column retaining
bolts (D) and both nuts (E) and lower
the steering column assembly.
Tightening torque:
9.4~13.0 lb-ft (12.7~17.7 Nm)
E
D
TSB: CHA072 / CS1604 Rev 1 Optima (QF/TF/TFH) August 2016
Page 4 of 6
SUBJECT:
6.
MDPS FLEXIBLE COUPLING REPLACEMENT (CS1604)
Loosen the three MDPS motor
retaining bolts (F) and lift the MDPS
motor and set it to the side.
Tightening torque:
5.8~8.7 lb-ft (7.8~11.8 N-m)
F
7.
Remove the flexible coupling (G) from
the housing. In addition, use an air gun
to remove any foreign matter from the
motor and/or the housing.
G
TSB: CHA072 / CS1604 Rev 1 Optima (QF/TF/TFH) August 2016
Page 5 of 6
SUBJECT:
8.
MDPS FLEXIBLE COUPLING REPLACEMENT (CS1604)
Install the new improved flexible
coupling onto the steering column.
 NOTICE
Before installing the new part,
make sure it has “HNBR”
embossed on the surface.
The position of the flexible
coupling is not specific and can
be installed facing upward or
downward.
9.
Reassemble all other components,
confirm MDPS operation and test all
multi function switch functions for
proper operation.
REQUIRED PART:
Part Name
Flexible Coupling
Part No.
Qty
56315 2K000FFF
1
Figure
Comments
New improved
flexible coupling has
“HNBR” embossed
on it
AFFECTED VEHICLE PRODUCTION RANGE:
Model
Production Date Range
Optima (QF/TF/TFH)
From August 12, 2010 to December 18, 2013
TSB: CHA072 / CS1604 Rev 1 Optima (QF/TF/TFH) August 2016
Page 6 of 6
SUBJECT:
MDPS FLEXIBLE COUPLING REPLACEMENT (CS1604)
WARRANTY INFORMATION FOR CS1604:
N CODE = N99 C CODE = C99
Model
Claim
Type
Causal
P/N
Optima (QF)
KMMG Built
V
56310
2T301
Optima (TF)
KMC Built
V
56310
2T301
Optima(TF/TFH)
KMC Built
V
56310
4U100
Qty.
Repair
Description
Labor
Op Code
Op
Time
Replacement
P/N
Qty.
0.8
M/H
56315
2K000FFF
1
160A28R0
0
Flexible
Coupling
Replacement
160081R0
160081R0
WARRANTY INFORMATION FOR ANY REPAIRS TO AFFECTED VEHICLES NOT INCLUDED IN
CS1604:
N CODE= D61 C CODE= ZZ4
Model
Claim
Type
Causal
P/N
Qty.
Repair
Description
Labor
Op Code
Op
Time
Replacement
P/N
Qty.
Optima
(QF/TF/TFH)
W
56315
2K000FFF
1
Flexible
Coupling
Replacement
56315F02
0.8
M/H
N/A
0
 NOTICE
The repair procedure to replace the flexible coupling of the MDPS on 2011-2014 MY
Optima (QF/TF/TFH) has been modified from the original repair procedure outlined in
KGIS and previously in TSB CHA 044 (removal of certain parts as currently shown in the
service procedure on KGIS is not necessary to complete the replacement of the flexible
coupling). As a result, the labor time for this repair has been adjusted to 0.8 M/H
(including inspection).
 NOTICE
To assure complete customer satisfaction, always remember to refer to WebDCS
Warranty Coverage (validation) Inquiry Screen (Service → Warranty Coverage → Warranty
Coverage Inquiry) for a list of any additional campaigns that may need to be performed on
the vehicle before returning it to the customer.
TSB: CHA072 / CS1604 Rev 1 Optima (QF/TF/TFH) August 2016