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Mazda 2 Service Information
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Mazda 2 Service Information

Heater and air conditioner system repair guidance
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Central
Service
Department
Category
HEATER AND AIR
CONDITIONER SYSTEM
Distribute to:-
Director
Divisional/GM
Warranty
Training
Applicable Model
Mazda2 (DJ/DL), Mazda3 (BM/BP),
Mazda6 (GJ/GL), CX-3 (DK), CX-5
(KE/KF), CX-9 (TC) and MX-5 (ND)
1. DESCRIPTION
Some customers may complain about an insufficient heater performance even after the engine reaching
normal operating temperature.
2. CAUSE
Crystallized foreign substances may be generated causing clogging of the heater core and a shortage of the
engine coolant circulation.
3. MASS PRODUCTION CHANGE
Composition of the coolant has been changed.
4. SUBJECT VIN and PRODUCTION DATE RANGE
Model
MM6 DJ**** **
Mazda2
(DJ/DL)
MM6 DL**** **
JM6 BM**** **
PP1 BMA171 *M
Mazda3 (BM)
PP1 BMA271 *M
PP1 BMB271 *M
Mazda3 (BP)
JM6 BP**** **
Mazda6 (GJ)
JM6 GJ**** **
Mazda6 (GL)
JM6 GL**** **
CX-3 (DK)
JM6 DK**** **
CX-5 (KE)
JM6 KE**** **
PP1 KFA171 **
PP1 KFA271 **
CX-5 (KF)
PP1 KFA231 **
PP1 KFA221 **
PP1 KFB221 **
CX-9 (TC)
JM6 TC**** **
MX-5 (ND)
JM6 ND**** **
No 7, Jalan Pelukis U1/46, Temasya Industrial Park, Seksyen U1, 40150 Shah Alam, Selangor Darul Ehsan, Malaysia
Service Information
SI Type
REPAIR GUIDANCE
Branches
Dealer Development
Subject
INSUFFICIENT HEATER PERFORMANCE
Subject VIN
From
100001
100001
TBD
TBD
TBD
100001
100001
100001
111045
101920
TBD
TBD
TBD
TBD
TBD
200001
100001
Bermaz Motor Trading Sdn Bhd (9529-K)
Tel : +60 (3) 7627 8888
Website: www.mazda.com.my
Dealers
PDI
CPD
Sales / Marketing
CRM
Production Date Range
To
445165
From October 8, 2014 to March 21, 2019
351420
100066
From March 19, 2019 to April 1, 2019
243006
322730
From July 11, 2016 to March 25, 2019
420456
From September 15, 2015 to April 1, 2019
425644
319665
From April 1, 2017 to April 1, 2019
300084
From May 22, 2015 to March 21, 2019
Fax : +60 (3) 7627 8890
Ref. No.
Page
BR72/19
1 of 10
Date Issued / Revised
JANUARY 21, 2020
ALL
TBD
TBD
TBD
All
ALL
TBD
TBD
TBD
TBD
TBD

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Summary of Contents for Mazda 2

  • Page 1 1. DESCRIPTION Some customers may complain about an insufficient heater performance even after the engine reaching normal operating temperature. 2. CAUSE Crystallized foreign substances may be generated causing clogging of the heater core and a shortage of the engine coolant circulation.

  • Page 2: Part Information

    Replacement part (Refer to EPC) Hose Clip Obtain the part number on EPC, Section 6100*.  As required for refilling Example: 7.3L (KE SKYACTIV-G 2.0)/9.1L (KE Coolant (4 x 5L) SKYACTIV-D 2.2) 4.0L for flushing NOTE : For coolant, either use one of the part number and claim applicable amount as described in “Warranty Information”.
  • Page 3 CLIP, HEATER HOSE Bermaz Motor Trading Sdn Bhd (9529-K) No 7, Jalan Pelukis U1/46, Temasya Industrial Park, Seksyen U1, 40150 Shah Alam, Selangor Darul Ehsan, Malaysia Tel : +60 (3) 7627 8888 Fax : +60 (3) 7627 8890 Website: www.mazda.com.my...

  • Page 4: Warranty Information

    Since all of the deteriorated old coolant cannot be drained out by one time, do the coolant replacement twice. Bermaz Motor Trading Sdn Bhd (9529-K) No 7, Jalan Pelukis U1/46, Temasya Industrial Park, Seksyen U1, 40150 Shah Alam, Selangor Darul Ehsan, Malaysia Tel : +60 (3) 7627 8888 Fax : +60 (3) 7627 8890 Website: www.mazda.com.my...
  • Page 5 The heater unit INLET pipe is always on upper side and the OUTLET pipe is on lower side. Connect two water hoses (inlet (2) and outlet (3)) to the pipes of the heater core and secure them using the original hose bands (1).
  • Page 6 Fill bucket (A) with clean water and immerse the PUMP (1) into the bucket. Place the end of hose (2) (connected to the heater core INLET pipe) in the empty bucket (B). Turn on the PUMP and flush the heater core for about 1 minute.
  • Page 7 Place a hose (3) of your local fresh water supply into bucket (B). Place the PUMP connected with the hose (OUT) (1) also in the bucket (B). Place the hose (IN) (2) to a local drain. Open the tap to run water.
  • Page 8 Fill the bucket (A) with 4 liters of engine coolant and place the PUMP (1) in it. Place the hose (IN) (2) in the empty bucket (B). Turn on the PUMP and run the engine coolant through the heater core to remove the remaining fresh water.
  • Page 9 • Refer to the Workshop Manual “ENGINE COOLANT REPLACEMENT”. A) Run the engine at 2,500 rpm for 5 min. B) Maintain the engine speed at 3,000 rpm for 5 seconds, then allow the engine to idle. Drain the coolant and repeat the step 24-27 to replace the coolant at the second time.
  • Page 10 Maintain the engine speed at 3,000 rpm for 5 seconds, then allow the engine to idle. Drain the coolant and repeat the step 2 – 7 to replace the coolant at the second time. Allow the engine to cool down.

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