Technical Service Bulletin 01-011-20-3734 — 2015 MAZDA MAZDA6
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 01-011-20-3734 |
| Manufacturer | |
| Vehicle | 2015 MAZDA MAZDA6 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Some customers may complain about an unusual noise coming from the engine compartment for about 20 seconds after a cold engine start. This noise is a normal engine operation for improved exhaust gas emissions. The noise does not indicate a malfunction. ACCELERATED WARM-UP SYSTEM (AWS): All SKYACTIV-G engines adopt AWS to reduce exhaust gas emissions immediately after a cold engine start. AWS increases the engine idling speed and retards the ignition timing for about 20 seconds after the cold engine start to quickly warm up the catalytic converter. The customer may identify the engine sound during the AWS operation as a unusual noise.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2015 MAZDA MAZDA6
06-001-23a
STEERING
SA-036-21
EXTERIOR LIGHTING
MT-002-20
WHEELS
MT-002-19
EQUIPMENT
SA-058-19
POWER TRAIN
03-001-18-3488
SUSPENSION
09-024-18-3470
STRUCTURE:BODY:DOOR
09-005-18-3414
SEATS:FRONT ASSEMBLY:POWER ADJUST
06-001-17-3307b
STEERING: STEERING WHEEL/HANDLE BAR
SA-066-17
EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH