Mercedes-Benz M166 engine#M116 E14
{{Infobox automobile engine
| name = Mercedes-Benz M166
| image = Escn0065.jpg
| manufacturer = Mercedes-Benz
| aka =
| production = 1997 – 2005
| predecessor =
| successor = Mercedes-Benz M266 engine
| configuration = Inline-four engine
| displacement = {{ubl
|{{convert|1397|cc|L|1|order=flip|abbr=on}}
|{{convert|1598|cc|L|1|order=flip|abbr=on}}
|{{convert|1898|cc|L|1|order=flip|abbr=on}}
|{{convert|2084|cc|L|1|order=flip|abbr=on}}
}}
| bore = {{ubl
|{{convert|80|mm|2|abbr=on}} (M166 E14, E16)
|{{convert|84|mm|2|abbr=on}} (M166 E19, E21)
}}
| stroke = {{ubl
|{{convert|69.5|mm|2|abbr=on}} (1.4 L engines)
|{{convert|79.5|mm|2|abbr=on}} (1.6 L engines)
|{{convert|85.6|mm|2|abbr=on}} (1.9 L engines)
|{{convert|94|mm|2|abbr=on}} (2.1 L engines)
}}
| block = Aluminium alloy
| head = Aluminium alloy
| valvetrain = SOHC 2 valves x cyl.
| compression = {{ubl
|11:1
|10.8:1 (1.9 L engines)
}}
| supercharger =
| turbocharger =
| fuelsystem = Multipoint injection
| management =
| fueltype = Gasoline
| oilsystem =
| coolingsystem =Water cooled
| power ={{convert|60-103|kW|PS hp|0|abbr=on}}
| specpower =
| torque ={{convert|130-205|Nm|lbft|0|abbr=on}}
| length =
| width =
| height =
| diameter =
| weight =
}}
The M166 is a range of inline-four engines produced by Mercedes-Benz from 1997 to 2005, before it was succeeded by the M266 engine from 2004.
Design
The M166 is transversely mounted and features 2 valves per cylinder with multipoint injection.{{Cite web|url=http://australiancar.reviews/mercedesbenz_M166_M266.php|title=Mercedes-Benz M166 and M266 engines|website=australiancar.reviews|language=en|access-date=2018-07-06}} The engine is used in W168 A-Class models that feature the 'sandwich concept', where the engine is mounted at a 59-degree angle just behind the front axle.{{Cite news|url=https://www.autoevolution.com/news/how-mercedes-sandwich-concept-works-6058.html|title=How Mercedes' Sandwich Concept Works|last=Popa|first=Bogdan|date=2009-04-23|work=autoevolution|access-date=2018-07-06|language=en-us}} This allows for better weight distribution as well as increased safety, as the engine slides underneath the floorpan instead of into the cabin in the event of a head-on collision.{{Cite news|url=https://www.nbr.co.nz/article/mercedes-cuts-sandwich-b-class-still-tempts-appetite-116687|title=Mercedes cuts sandwich but B-class still tempts appetite|date=2012-04-14|work=The National Business Review|access-date=2018-07-06|language=en}}
Models
| class="wikitable sortable" style="text-align: center;"
!Engine !Displacement !Power !Torque !Years |
| M166 E14
|{{convert|1397|cc|L cuin|1|abbr=on|order=flip}} | rowspan="2" |{{convert|60|kW|PS hp|0|abbr=on}} |{{convert|130|Nm|lbft|0|abbr=on}} |1997–2004 |
| M166 E16 R
| rowspan="2" |{{convert|1598|cc|L cuin|1|abbr=on|order=flip}} |{{convert|140|Nm|lbft|0|abbr=on}} | rowspan="2" |1997–2005 |
| M166 E16
|{{convert|75|kW|PS hp|0|abbr=on}} |{{convert|150|Nm|lbft|0|abbr=on}} |
| M166 E19
|{{convert|1898|cc|L cuin|1|abbr=on|order=flip}} |{{convert|92|kW|PS hp|0|abbr=on}} |{{convert|180|Nm|lbft|0|abbr=on}} |1999–2005 |
| M166 E21
|{{convert|2084|cc|L cuin|1|abbr=on|order=flip}} |{{convert|103|kW|PS hp|0|abbr=on}} |{{convert|205|Nm|lbft|0|abbr=on}} |2002–2004 |
= M166 E14 =
= M166 E16 =
- 2001–2005 W639 Vito 1.6
- 1997–2004 W168 A160
= M166 E19 =
- 1999–2004 W168 A190
- 2001–2005 W639 Vito 1.9
- 2001-2005 W414 Vaneo 1.9
= M166 E21 =
- 2002–2004 W168 A210