NHTSA ID Number: 10162026
Manufacturer Communication Number: SA-026-19
TSB/Document Date: 2019-07-02
Summary
Not only does the diesel engine have unique features compared with a traditional gasoline engine, but the Mazda
SKYACTIV-D 2.2L has many unique features even when compared with a conventional diesel engine. For this reason, we are providing the following necessary basic information for service. Please familiarize yourself with the material so that you understand and can explain the unique features and operation of this engine. I. TECHNICAL FEATURES: Common Rail Injection System, Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) System, NSC (NOx Storage Catalyst) Control, II. CUSTOMER ADVICE: Before Driving, Starting the Engine, Turning the Engine Off, When Driving, Maintenance III. REPAIR: Fuel Injector Installation IV. PRE-DELIVERY INSPECTION (PDI): Diesel Particulate Filter (DPF) Regeneration
Mazda North American Operations
Irvine, CA 92618-2922
Service Alert
Subject:
2018-2019 CX-5 SKYACTIV-D 2.2L - NEW DIESEL ENGINE FEATURES
AND SERVICE CAUTIONS
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
APPLICABLE MODEL(S)/VINS
2018-2019 CX-5 SKYACTIV-D 2.2L
DESCRIPTION
Not only does the diesel engine have unique features compared with a traditional gasoline engine, but the
Mazda SKYACTIV-D 2.2L has many unique features even when compared with a conventional diesel
engine. For this reason, we are providing the following necessary basic information for service. Please
familiarize yourself with the material so that you understand and can explain the unique features and
operation of this engine.
I. TECHNICAL FEATURES
Common Rail Injection System
Diesel Particulate Filter (DPF)
Selective Catalytic Reduction (SCR) System
NSC (NOx Storage Catalyst) Control
II. CUSTOMER ADVICE
Before Driving
Starting the Engine
Turning the Engine Off
When Driving
Maintenance
III. REPAIR
Fuel Injector Installation
IV. PRE-DELIVERY INSPECTION (PDI)
Diesel Particulate Filter (DPF) Regeneration
Page 1 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
I. TECHNICAL FEATURES
Common Rail Injection System
1. The common rail fuel injection system stores fuel pressurized by the supply pump in
the common rail and injects fuel into each cylinder using fuel injectors based on
control from the PCM.
2. Fuel is atomized by extremely high fuel injection pressure and the generation of
particulate matter (PM) is reduced by the dissipation of unburnt fuel.
3. There is a high degree of flexibility in the fuel injection amount, fuel injection timing
and fuel injection pattern. NOx/PM is reduced by controlling the fuel conditions
based on vehicle conditions.
Diesel Particulate Filter (DPF)
1. Diesel particulate elimination equipment (DPF) has been adopted to eliminate PM
from the exhaust gas.
2. When the amount of accumulated particulate matter (PM) in the diesel particulate
filter exceeds a certain value, the PCM acts to combust and eliminate the PM.
MGSS:
COMMON RAIL
INJECTION
SYSTEM
[SKYACTIV-D
2.2]
See Owner's
Manual ->
Maintenance
and Care ->
Diesel
Particulate
Filter (DPF)
MGSS: DIESEL
PARTICULATE
FILTER
REGENERATION
CONTROL
[SKYACTIV-D
2.2]
See Owner's
Manual ->
Maintenance
and Care ->
Selective Catalytic Reduction (SCR) System
Selective
Catalytic
Reduction
1. Reduction of NOx in the exhaust gas has been achieved by optimally controlling the
(SCR) System
SCR system (such as Diesel Exhaust Fluid (DEF) injection amount) according to the
vehicle conditions.
MGSS: SCR
CONTROL
[SKYACTIV-D
2.2]
Page 2 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
NSC (NOx Storage Catalyst) Control
See Owner's
Manual ->
Maintenance
and Care ->
NSC (NOx
Storage
Catalyst)
Control
1. The NSC absorbs the NOx from the engine exhaust.
2. The PCM performs NOx reduction control periodically to break down NOx stored in
the NSC (DENOx control).
3. The PCM performs NOx reduction control periodically to break down NOx
accumulated in the NSC (DENOxcontrol). NOx reduction control is performed at the
MGSS: NSC
same time as diesel particulate filter regeneration control.
CONTROL
[SKYACTIV-D
2.2]
Page 3 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
II. CUSTOMER ADVICE
Page 4 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
Before Driving
▼Fuel Requirements
The vehicle will operate efficiently on diesel fuel with specification Ultra-Low Sulfur Diesel
(ULSD, 15 ppm sulfur or less) fuel that meets the ASTM D975 standard or the equivalent.
Fuel grade labels are visible on the fuel-filler lid, therefore, always verify the fuel grade
before refueling. If the fuel grade cannot be verified, ask the gas station attendant.
CAUTION:
1. Never use fuel other than specification Ultra-Low Sulfur Diesel (ULSD, 15 ppm sulfur or
less) fuel that meets the ASTM D975 standard or the equivalent for your vehicle. Use
of gasoline or kerosene in diesel engines will result in fuel system and engine damage.
2. Never use diesel fuel with concentrations of methyl ester bio-diesel higher than 5%
(B5), such as B20 or B100.
3. Never add fuel system additives, otherwise, the emission control system could be
damaged.
4. If any type of incorrect fuel is accidentally pumped into the fuel tank, do not turn on
the engine or drive the vehicle, instead, consult an Authorized Mazda Dealer.
5. Turning on the engine or driving the vehicle with the incorrect fuel could cause
damage to the fuel pump and fuel injectors.
6. Do not mistake the refueling port for the DEF filler port. If fuel is added to the DEF
filler port by mistake, do not turn on the engine or drive the vehicle, instead, consult
an Authorized Mazda Dealer.
7. Turning on the engine or driving the vehicle with fuel in the DEF filler port could cause
damage to the emission control system.
See Owner's
Manual ->
Before
Driving ->
Fuel
Requirement
s
NOTE:
1. Fuel for winter driving is available. Ask the gas station attendant for details.
2. When refueling, always add at least 2.6 US gal (10 L, 2.2 Imp gal) of fuel.
Low outside temperatures
When the outside temperature is low, diesel fuel (which is a light oil) may freeze and clog
the fuel pipe, leading to problems such as the engine not starting. When driving to a cold
region, add winter grade diesel fuel as soon as possible.
Page 5 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
Never use engine starting assist additives
Using engine starting assist additives is dangerous because they may cause a vehicle
explosion or a vehicle runaway condition, leading to serious injury or death.
(Technical Background)
1. The flapper is equipped on the fuel filler neck to prevent non-diesel fuel filling.
Diesel's wider diameter nozzle can release the lock and open the flapper.
RUN DRY PREVENTION (RDP) CONTROL
To prevent air from flowing into the fuel line when fuel decreases in the fuel tank, the
output is intentionally controlled to warn the driver to supply fuel. The PCM stores the
output limit or DTC according to the remaining fuel level.
Page 6 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
Starting the Engine
1. The starter motor will not engage until the glow indicator light turns off.
2. If the ignition switch is left ON for a long period of time without the engine running,
the glow plugs could have cooled down. The glow plugs may require warming up
again, which will illuminate the glow indicator light.
3. When starting the engine, do not release the brake pedal until the glow indicator light
in the instrument cluster turns off and the engine starts.
See Owner's
Manual ->
When Driving
-> Starting
the Engine
(Technical Background)
1. Heating the glow plugs is controlled by the PCM through the glow control module to
improve engine start ability.
2. Energization time to the glow plugs is determined according to the engine coolant
temperature and engine starting conditions.
Page 7 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
Turning the Engine Off
1. If the engine is started and stopped repeatedly before it warms up, the engine may
speed up to 1,500 rpm while the vehicle is stopped and in Park or Neutral in order to
clean the engine internally.
2. Do not shut off the engine until the engine returns to normal idle speed.
Display
Content
Action to be taken
Fast Idle Due to
Diesel Injector
Cleaning
Indicated when the engine
speed increases because
the engine is being
cleaned internally
The engine speed will increase while the
engine is running an internal cleaning cycle
with the selector lever in the P or N position.
Do not stop the engine while the engine speed
is high. When the cleaning cycle is completed,
the engine speed will return to normal. See Owner's
Manual ->
When Driving
-> Turning
the Engine
Off
(Technical Background)
1. The PCM implements fuel injection control when it determines that the ignition switch
is being switched OFF repeatedly while the engine has not been warmed up sufficiently.
2. To prevent condensation accumulation in the fuel injection system, the combustion
chamber temperature is increased by increasing idle speed to approximately 1,500 rpm
under no-load. When the temperature in the combustion chamber increases to the
specified temperature, the idle speed increase is automatically canceled.
Page 8 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
When Driving
▼Diesel Particulate Filter
The diesel particulate filter collects and removes most of the particulate matter (PM) in
the exhaust gas of a diesel engine. PM collected by the diesel particulate filter is cleared
during normal driving, however, PM may not be removed and the diesel particulate filter
indicator light may illuminate under the following conditions:
See Owner's
Manual ->
When Driving
-> Diesel
Particulate
Filter (DPF)
1. If the vehicle is driven at 9 mph (15 km/h) or less continuously.
2. If the vehicle is repeatedly driven for a short period of time (10 minute or less) or
driven while the engine is cold.
3. If the vehicle is idled for a long time.
When “DPF Clogged” is indicated
When the particulate matter (PM) cannot be removed automatically and the amount of
collected PM has reached a specified amount, perform the following to clear the PM from
the DPF.
1. After the engine has sufficiently warmed up (engine coolant temperature of 176 °F
(80 °C) or more), drive the vehicle at a speed of 12 mph (20 km/h) or more for about
15 to 20 minutes.
CAUTION:
1. If the vehicle continues to be driven with “DPF Clogged” indicated in the display, the
particulate matter (PM) increases and the indication may change to “DPF
malfunction”. If the indication changes to “DPF malfunction”, have the vehicle
inspected immediately at an Authorized Mazda Dealer.
2. If the vehicle is not inspected and continues to be driven, the engine may malfunction.
NOTE:
1. When “DPF malfunction” is indicated in the display, the engine output is restricted to
protect the diesel particulate filter.
2. The engine sound and exhaust gas smell may change when PM is being removed while
driving.
(Technical Background)
1. When the amount of accumulated particulate matter (PM) in the diesel particulate
filter exceeds a certain value, the PCM controls post fuel injection to combust and
eliminate PM.
2. Two methods are available to combust and eliminate PM, one is automatic DPF
regeneration control which is performed by the PCM automatically. The other method
is compulsory DPF regeneration control which can be forcibly performed externally
(using the Mazda Modular Diagnostic System (M-MDS)).
3. During DPF regeneration control, fuel is injected after the main injection to increase the
temperature (follow-up injection, post injection).
Page 9 of 27
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2019 Mazda North American Operations, U.S.A.
Service Alert No.: SA-026/19
Last Issued: 06/13/2019
4. The value displayed, as the current fuel economy increases, shows a lower MPG value
during DPF regeneration.
▼Selective Catalytic Reduction (SCR) System
The SCR system is designed to reduce nitrogen oxide (NOx) in the exhaust gas and purify
the exhaust gas by injecting it with Diesel Exhaust Fluid (DEF).
WARNING:
Be careful not to allow the DEF to run out. If the DEF completely runs out, the SCR
system will not operate normally. When the remaining DEF is low, a message is displayed
on the multi-information display, and the SCR warning light turns on/flashes. If DEF needs
to be replenished, add DEF following the specified procedure.
- 6X better wear protection on critical engine parts than...
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full...
- Protection for 10,000 miles between oil changes
- Meets or exceeds the following specifications: API SP/SN...
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
- Provides performance benefits for high mileage, new and...
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TSB/Document ID: SA-026-19
Replacement Service Bulletin Number:
MFR Communication Date: 2019-06-13
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Communication Type: Service Bulletin/Repair Instructions
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