B16-022

Service Bulletin
November 17, 2016
16-022
05311 Version 3
Warranty Extension: 2007–10 MDX and 2010 ZDX Rear Active Damper
(6 Months)
Supersedes 16-020, Warranty Extension: 2007–09 MDX and 2010 ZDX Rear Active Damper (6 Months), dated
November 8, 2016, to revise the information highlighted in yellow
AFFECTED VEHICLES
Year
2007–10
2010
Model
MDX
ZDX
Trim
ALL with Active Damper System
ALL with Active Damper System
VIN Range
Check the iN VIN status for eligibility
Check the iN VIN status for eligibility
REVISION SUMMARY
In AFFECTED VEHICLES and WARRANTY CLAIM INFORMATION, 2010 MDX vehicles were added.
BACKGROUND
This bulletin will expire May 8, 2017.
In cold areas, the rear active dampers may be susceptible to leaking. If an excessive amount of damper oil has leaked,
the active dampers may make a clunk or a bang when driving on rough roads or over speed bumps.
There are two bulletins that address rear active damper noise:
• S/B 16-022, Warranty Extension: 2007–10 MDX and 2010 ZDX Rear Active Damper, which covers some
2007–10 MDX and 2010 ZDX vehicles. The extended warranty covering these vehicles may have already expired,
or will expire before November 8, 2016, based on the original date of purchase or mileage. To improve client
confidence, vehicles covered under this bulletin will receive a grace period that covers the damper until May 8, 2017
(or 100,000 miles) to ensure that all clients receive at least 6 months of coverage. This bulletin will expire
May 8, 2017.
• S/B 16-023, Warranty Extension: 2007–13 MDX and 2010–12 ZDX Rear Active Damper. Vehicles covered under
this bulletin will have the warranty on the rear active dampers extended to 7 years from the original date of
purchase or 100,000 miles, whichever comes first.
The following states are covered by the warranty extension: Alaska, Colorado, Connecticut, Delaware, Idaho, Illinois,
Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Hampshire,
New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Vermont, Washington, West
Virginia, Wisconsin, and Wyoming.
CLIENT NOTIFICATION
Owners of affected vehicles will be sent a notification of this campaign.
Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.
CORRECTIVE ACTION
Do the inspection and, if necessary, replace both rear active dampers.
CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Acura automobile dealer.
© 2016 American Honda Motor Co., Inc. – All Rights Reserved
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PARTS INFORMATION
Part Name
Part Number
Quantity
Rear Damper Assembly
52610-STX-A55
2
Bolt (14 x 81 mm)
90170-STX-A01
2
Bolt (Upper Damper 12 x 64 mm) (2010 ZDX)
90170-SZN-A00
2
Bolt (Upper Damper 12 x 64 mm) (2007–10 MDX)
90171-STX-A01
2
Bolt (Lower Damper 12 x 109 mm) (2010 ZDX)
90172-SZN-A00
2
Bolt (Lower Damper 12 x 109 mm) (2007–10 MDX)
90172-STX-A00
2
WARRANTY CLAIM INFORMATION
Operation
Number
Description
Flat
Rate
Time
Defect
Code
Symptom
Code
Template ID
Failed Part Number
4171E1
2007–10 MDX: Do the
inspection and replace both
rear dampers (includes
memorizing rear suspension
full rebound position
procedure and damper force
operation test. No alignment
necessary).
1.0 hr
6D100
JZ200
16-022N
52610-STX-A54
4171E1
2010 ZDX: Do the inspection
and replace both rear
dampers (includes
memorizing rear suspension
full rebound position
procedure and damper force
operation test. No alignment
necessary).
1.0 hr
6D100
JZ200
16-022P
52610-STX-A54
NOTE: If you are replacing the front and rear dampers at the same time, you may only claim one alignment.
Operation
Number
Description
Flat
Rate
Time
Defect
Code
Symptom
Code
Template ID
Failed Part Number
4171E1
2007-10 MDX: Do the
inspection and replace both
rear dampers (includes
memorizing rear suspension
full rebound position
procedure, damper force
operation test, and
alignment).
1.0 hr
6D100
JZ200
16-022Q
52610-STX-A54
Alignment- add
0.4 hr
2010 ZDX: Do the inspection
and replace both rear
dampers (includes
memorizing rear suspension
full rebound position
procedure, damper force
operation test, and
alignment).
1.0 hr
6D100
JZ200
16-022R
52610-STX-A54
Alignment- add
0.4 hr
A
4171E1
A
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INSPECTION PROCEDURE
NOTE: Clanks, clunks, or rattles from the rear suspension often indicate the damper is leaking. Other types of noises
like squeaks are not caused by the damper leaking and are not covered by this warranty extension.
Place the vehicle on a flat surface or raise it on a lift, then inspect the rear dampers for leakage by checking if the oil
stains extend below the bottom of the damper label.
NOTE: If the label is damaged or missing, measure a line that is 125 mm above the center of the lower mounting bolt
eye.
• If the oil stains extend below the bottom of the damper label, go to REPAIR PROCEDURE.
• If the oil stains do not extend below the bottom of the damper label, this warranty extension does not apply.
Continue with normal troubleshooting.
REPAIR PROCEDURE
1. Replace both rear damper units. Refer to the applicable service information.
2. Using the i-HDS, follow the on-screen instructions to do the Memorizing Rear Suspension Full Rebound procedure.
Then do the Damper Force Operation Test.
3. Check and adjust the wheel alignment.
END
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