The 1.6-liter Mazda Y6 or 1.6 CiTD engine was produced from 2004 to 2015 in two versions: the first generation units with the Y406, Y601, Y642 and Y646 indices were equipped with a 16-valve cylinder head, and the second generation engines with the Y650, Y655, Y661 and Y6Y1 indices equipped with an 8-valve cylinder head.
MZ-CD family: Y4, Y6.
Specifications
| Production years | 2004-2015 |
| Displacement, cc | 1560 |
| Fuel system | Common Rail |
| Power output, hp | 90 (Y406, Y646) 109 (Y601, Y642) 95 (Y655, Y661) 115 (Y650, Y6Y1) |
| Torque output, Nm | 205 – 215 (Y406, Y646) 240 (Y601, Y642) 205 (Y655, Y661) 270 (Y650, Y6Y1) |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v (Y406, Y646) aluminum 16v (Y601, Y642) aluminum 8v (Y655, Y661) aluminum 8v (Y650, Y6Y1) |
| Cylinder bore, mm | 75 |
| Piston stroke, mm | 88.3 |
| Compression ratio | 18.3 (Y406, Y646) 18.3 (Y601, Y642) 16.0 (Y655, Y661) 16.0 (Y650, Y6Y1) |
| Features | DOHC (Y406, Y646) DOHC (Y601, Y642) SOHC (Y655, Y661) SOHC (Y650, Y6Y1) |
| Hydraulic lifters | yes |
| Timing drive | chain and belt (Y406, Y646) chain and belt (Y601, Y642) belt (Y655, Y661) belt (Y650, Y6Y1) |
| Phase regulator | no |
| Turbocharging | MHI TD025 (Y406, Y646) Garrett GT1544V (Y601, Y642) MHI TD02H2 (Y655, Y661) Garrett GTC1244VZ (Y650, Y6Y1) |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.8 (Y406, Y646) 3.8 (Y601, Y642) 3.9 (Y655, Y661) 3.9 (Y650, Y6Y1) |
| Fuel type | diesel |
| Euro standards | EURO 3/4 (Y406, Y646) EURO 3/4 (Y601, Y642) EURO 4/5 (Y655, Y661) EURO 4/5 (Y650, Y6Y1) |
| Fuel consumption, L/100 km (for Mazda 3 2007) — city — highway — combined |
6.1 4.1 4.8 |
| Engine lifespan, km | ~300 000 |
The engine was installed on:
- Mazda 2 DE in 2009 – 2014;
- Mazda 3 BK in 2004 – 2009, 3 BL in 2009 – 2013;
- Mazda 5 CW in 2010 – 2015.
Disadvantages of the Y6 1.6 CiTD engine
- In the engines of the first years of production, the camshaft cams quickly wore out;
- Even in 16-valve engines, the chain between the camshafts is often extended;
- The turbine of the first generation engines often fails due to clogging of its filter;
- Second-generation 8-valve engines are more reliable and have virtually no weak points;
- Also here are the typical problems of diesel engines with a particulate filter and EGR.
Frequently asked questions about the Mazda Y6 1.6 CiTD
How much power does the Mazda Y6 1.6 CiTD make?
Power output of the Mazda Y6 1.6 CiTD, hp: 90 (Y406, Y646); 109 (Y601, Y642); 95 (Y655, Y661); 115 (Y650, Y6Y1). Torque, Nm: 205 - 215 (Y406, Y646); 240 (Y601, Y642); 205 (Y655, Y661); 270 (Y650, Y6Y1).
How much oil does the Mazda Y6 1.6 CiTD take and which one?
Engine oil capacity: 3.8 (Y406, Y646); 3.8 (Y601, Y642); 3.9 (Y655, Y661); 3.9 (Y650, Y6Y1) liters. Recommended oil: 5W-30.
Does the Mazda Y6 1.6 CiTD have a timing belt or chain?
Timing drive of the Mazda Y6 1.6 CiTD: chain and belt (Y406, Y646); chain and belt (Y601, Y642); belt (Y655, Y661); belt (Y650, Y6Y1).
Is the Mazda Y6 1.6 CiTD turbocharged?
Yes, the Mazda Y6 1.6 CiTD is turbocharged (MHI TD025 (Y406, Y646); Garrett GT1544V (Y601, Y642); MHI TD02H2 (Y655, Y661); Garrett GTC1244VZ (Y650, Y6Y1)).
Does the Mazda Y6 1.6 CiTD need valve clearance adjustment?
No, the Mazda Y6 1.6 CiTD has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Mazda Y6 1.6 CiTD last?
The typical lifespan of the Mazda Y6 1.6 CiTD is ~300 000 km with proper maintenance.
What is the fuel consumption of the Mazda Y6 1.6 CiTD?
Mazda 3 2007: city 6.1, highway 4.1, combined 4.8 L/100 km.
What cars was the Mazda Y6 1.6 CiTD installed on?
Mazda 2 DE in 2009 - 2014; Mazda 3 BK in 2004 - 2009, 3 BL in 2009 - 2013; Mazda 5 CW in 2010 - 2015.
What are the common problems of the Mazda Y6 1.6 CiTD?
In the engines of the first years of production, the camshaft cams quickly wore out. Even in 16-valve engines, the chain between the camshafts is often extended. All known problems.
