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ABNORMAL HEATER PERFORMANCE AT IDLE mk3 2006-

alan
Regular
Posts: 197
Joined: Fri Dec 09, 2011 2:48 pm

ABNORMAL HEATER PERFORMANCE AT IDLE mk3 2006-

Postby alan » Tue Jan 17, 2012 8:56 pm

Service Bulletin Mazda North American Operations
Irvine, CA 92618-2922
2006 MX-5 - ABNORMAL HEATER PERFORMANCE AT IDLE
APPLICABLE MODEL(S)/VINS
2006 MX-5 vehicles with VINs lower than JM1 NC**** 60 111258 (produced before December 22, 2005)
DESCRIPTION
Some customers that park their vehicle on a decline or brake hard during cold engine conditions may experience
abnormal heater performance at idle. This condition can be the result of air moving up from the radiator
sub-tank through the thermostat housing and becoming trapped in the heater core and/or its supply lines.
To prevent this condition from occurring, the shape of the hose between the radiator sub-tank and the thermostat
has been changed. Customers having this concern should have their vehicle repaired using the following
repair procedure.
REPAIR PROCEDURE
WARNING:
• If the engine is very hot and the water hose is compressed, be careful when removing the cooling
system cap. Wrap a thick cloth around it and slowly turn it counterclockwise to the first stop.
Step back while the pressure escapes before proceeding with any repair.
1. Verify customer concern.
2. Remove the water hose.
3. Align each mark and fit a modified water hose.
ALIGN THE MARKS
FRONT OF
VEHICLE
WATER HOSE
1575a
Bulletin No: 07-001/06
© 2006 Mazda Motor of America, Inc.
Last Issued: 3/13/2006
Page 2 of 3
4. Using a clip, secure the modified water hose, heater hose and power steering hose together.
5. Refill the coolant into the coolant reserve tank up to the F mark on the tank.
6. Install the cooling system cap.
CAUTION:
• During the bleeding procedures, if the water temperature gauge rises too high, stop the
engine and decrease the water temperature to prevent overheating. Then, verify the malfunctioning
part and repair or replace it.
• During the bleeding procedures, if the engine coolant level in the coolant reserve tank is
below the L mark during engine coolant air bleeding operation, stop the engine, and after
the engine coolant temperature decreases, add engine coolant. Then, resume the engine
coolant air bleeding operation.
7. Perform the bleeding procedure as follows to ensure all trapped air is bled from the cooling system.
A. Start the engine and warm up the engine by idling.
B. After the engine warms up, perform the following steps. At this time, be careful of the coolant temperature
to prevent overheating.
a. Run the engine at approx. 2,500 RPM for 5 minutes.
b. Run the engine at approx. 3,000 RPM for 5 seconds, then at idle for 5 seconds.
c. Repeat step (b) 4-5 times.
D. Stop the engine, and inspect the coolant level after the coolant temperature decreases. If it is low, repeat
steps 4-10.
8. Verify repair.
PART(S) INFORMATION
Part Number Description Qty. Notes
LFG1-15-183B Water Hose 1 ---
AJ57-13-243A Clip 1 ---
SECURE THE
HOSES USING
A CLIP
HEATER HOSE
MODIFIED
WATER HOSE
POWER STEERING HOSE
1575b
FRONT OF
VEHICLE
Bulletin No: 07-001/06
© 2006 Mazda Motor of America, Inc.
Last Issued: 3/13/2006
Page 3 of 3
WARRANTY INFORMATION
NOTE:
• This warranty information applies only to verified customer complaints on vehicles eligible for warranty
repair. Refer to the Warranty Wizard for warranty term information.
• Additional diagnostic time cannot be claimed for this repair.
Warranty Type A
Symptom Code 59
Damage Code 9B
Part Number Main Cause LFG1-15-183B
Quantity 1
Operation Number / Labor Hours: XXB245RX / 0.3 Hrs
http://www.miata.net/garage/tsb/sb07-001-06-1575.pdf
Alan
1990 Silver MK1 1600 SOLD
You have the right to remain silent Anything you say will be misquoted then used against you
IF YOU CANT FIX IT WITH A HAMMER YOUVE GOT AN ELECTRICAL PROBLEM
User avatar
Skuzzle
Serial Poster
Posts: 311
Joined: Tue Dec 06, 2011 6:12 pm

Re: ABNORMAL HEATER PERFORMANCE AT IDLE mk3 2006-

Postby Skuzzle » Wed Jan 25, 2012 11:43 am

thats.. erm.. odd

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