Mercedes-Benz OM656 engine

{{Infobox automobile engine

| name = Mercedes-Benz OM656

| image = Mercedes OM656 engine.png

| manufacturer = Mercedes-Benz

| production = 2017–present

| predecessor = {{ubl|Mercedes-Benz OM642|Mercedes-Benz OM629}}

| successor =

| configuration = Straight-six engine

| displacement = {{convert|2927.8|cc|L|1|order=flip|abbr=on}}, {{convert|2989.8|cc|L|1|order=flip|abbr=on}}

| bore = {{convert|82|mm|2|abbr=on}}

| stroke = {{convert|92.4|mm|2|abbr=on}}

| block = Aluminium alloy

| head = Aluminium alloy

| valvetrain = DOHC 4 valves x cyl. with VVT

| compression = 15.5:1

| supercharger = BorgWarner eBooster electrically driven compressor

| turbocharger = BorgWarner R2S®[https://www.borgwarner.com/newsroom/press-releases/2017/10/17/borgwarner-s-r2s-turbocharging-technology-boosts-engine-performance] Biturbo (only one twin-scroll)

| fuelsystem = Common rail direct injection

| management =

| fueltype = Diesel

| oilsystem =

| coolingsystem = Water cooled

| power = {{convert|210-270|kW|hp|0|abbr=on}}

| torque = {{convert|600-750|Nm|lbft|0|abbr=on}}

| weight =

}}

The OM656 is a turbocharged diesel engine produced by Mercedes-Benz since 2017. It was first introduced in the facelift W222 S-Class.{{Cite news|url=https://drivemag.com/news/facelifted-2017-mercedes-benz-s-class-to-debut-new-3-0l-straight-six-engines-4-0l-v8-biturbo|title=Facelifted 2017 Mercedes-Benz S-Class to Debut New 3.0L Straight-Six Engines, 4.0L V8 Biturbo|last=Publishing|first=Last Gear|work=Drive Mag|access-date=2018-07-03|language=en-EN}}

Design

The OM656 is based on a modular design that is shared with other 4-cylinder and 6-cylinder, petrol and diesel engines.{{Cite web|url=http://www.dsf.my/2016/10/new-modular-engine-family-from-mercedes-benz-is-cleaner-and-more-powerful-than-ever/|title=New Modular Engine Family from Mercedes-Benz is Cleaner and More Powerful – Drive Safe and Fast|website=www.dsf.my|date=30 October 2016 |language=en-US|access-date=2018-07-03}} It is the replacement to the previous V6,{{Cite news|url=http://autoweek.com/article/car-news/new-straight-sixes-headline-mercedes-engine-lineup|title=Hallelujah: Mercedes is bringing back the straight-six|work=Autoweek|access-date=2018-07-03}} in order to maintain the cost of production between different engines. The OM656 has dual overhead camshafts with variable valve timing, and uses AdBlue injection and exhaust gas recirculation to reduce emissions.{{Cite news|url=https://mercedesblog.com/mercedes-rolls-out-new-generation-v8-and-inline-6-cylinder-engines/|title=Mercedes rolls out new generation V8, inline 4 and 6 cylinder engines - MercedesBlog|date=2016-10-29|work=MercedesBlog|access-date=2018-07-03|language=en-US}} The cylinder walls are coated with arc sprayed steel whose increased porosity aids oil film strength to reduce friction.{{Cite news|url=https://jalopnik.com/the-inline-six-engine-is-back-for-mercedes-benz-1794424745|title=The Inline-Six Engine Is Back For Mercedes-Benz|last=Orlove|first=Raphael|work=Jalopnik|access-date=2018-07-03|language=en-US}}{{Cite web|url=https://group-media.mercedes-benz.com/marsMediaSite/en/instance/ko/NANOSLIDE-Mirror-smooth-surface-for-less-friction.xhtml?oid=14316637|title=NANOSLIDE®: Mirror-smooth surface for less friction |work=www.group-media.mercedes-benz.com|access-date=2022-08-29|language=en-US}}

Models

class="wikitable sortable" style="text-align: center;"

!Engine

!Power

!Torque

!Years

OM656 D29T R SCR

|{{convert|210|kW|PS hp|0|abbr=on}}
at 3,400–4,600 rpm

|{{convert|600|Nm|lbft|0|abbr=on}}
at 1,200–3,200 rpm

| rowspan="2" |2017–[http://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=14315931 New six-cylinder diesel engine (OM 656): Majestic long-distance athlete]

OM656 D29T SCR

|{{convert|250|kW|PS hp|0|abbr=on}}
at 3,600–4,400 rpm

|{{convert|700|Nm|lbft|0|abbr=on}}
at 1,200–3,200 rpm

OM656 D30T R M

|{{convert|230|kW|PS hp|0|abbr=on}} + {{convert|15|kW|PS hp|0|abbr=on}} at 3,400–4,600 rpm

|{{convert|650|Nm|lbft|0|abbr=on}} at 1,200–3,200 rpm

| rowspan="2" |05/2023–{{Cite web |title=Konfigurator & Preise {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/mercedes-benz-cars/car-configurator.html/motorization/CCci/DE/de/S-KLASSE/LIMOUSINE |access-date=2024-08-31 |website=www.mercedes-benz.de |language=de-DE}}

OM656 D30T M

|{{convert|270|kW|PS hp|0|abbr=on}} + {{convert|15|kW|PS hp|0|abbr=on}} at 3,600–4,200 rpm

|{{convert|750|Nm|lbft|0|abbr=on}} at 1,200–3,200 rpm

= OM656 D29T R SCR =

2017–2020 W222 S 350 d{{Cite news|url=https://www.autoevolution.com/news/mercedes-benz-e-400-d-4matic-all-terrain-confirmed-to-get-om-656-engine-125401.html|title=Mercedes-Benz E 400 d 4Matic All-Terrain Confirmed to Get OM 656 Engine|work=www.autoevolution.com|access-date=2018-07-03}}
2018–2020 C257 CLS 350 d{{Cite news|url=https://www.carmagazine.co.uk/car-reviews/mercedes-benz/mercedes-cls-2018-review/|title=Mercedes CLS pre-production (2017) ride review|work=CAR Magazine|access-date=2018-07-03|language=en}}
2018–2020 W213 E 350 d
2018–present W463 G 350 d{{cite web |last1=Panait |first1=Mircea |title=G 350 d Introduces OM 656 Turbo Diesel To 2019 Mercedes-Benz G-Class |url=https://www.autoevolution.com/news/g-350-d-introduces-om-656-turbo-diesel-to-2019-mercedes-benz-g-class-131141.html |website=autoevolution |accessdate=24 December 2018 |language=en |date=22 December 2018}}

2019–present V167 GLE 350 d
2020–present X167 GLS 350 d
2021–present W223 S 350 d

= OM656 D29T SCR =

2017–2020 W222 S 400 d{{Cite news|url=http://www.wardsauto.com/engines/mercedes-show-six-appeal-shanghai-show-0|title=Mercedes to Show Off Six Appeal at Shanghai Show|date=2017-04-18|work=WardsAuto|access-date=2018-07-03}}
2018–2023 C257 CLS 400 d 4MATIC
2018–present W213 E 400 d 4MATIC{{Cite news|url=https://www.autoevolution.com/news/mercedes-benz-e-400-d-4matic-all-terrain-confirmed-to-get-om-656-engine-125401.html|title=Mercedes-Benz E 400 d 4Matic All-Terrain Confirmed to Get OM 656 Engine|last=Panait|first=Mircea|date=2018-05-02|work=autoevolution|access-date=2018-07-03|language=en-us}}
2018-present W463 G 400 d
2019–present V167 GLE 400 d
2020–present X167 GLS 400 d
2021–present W223 S 400 d 4MATIC

= OM656 D30T R M =

2023–present W223 S 350 d (RWD-version and 4MATIC-version){{Cite web |title=Konfigurator & Preise {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/mercedes-benz-cars/car-configurator.html/motorization/CCci/DE/de/S-KLASSE/LIMOUSINE |access-date=2024-08-31 |website=www.mercedes-benz.de |language=de-DE}}
2023–present X167 GLS 350 d 4MATIC{{Cite web |title=Konfigurator & Preise {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/mercedes-benz-cars/car-configurator.html/motorization/CCci/DE/de/GLS-KLASSE/OFFROADER |access-date=2024-08-31 |website=www.mercedes-benz.de |language=de-DE}}

= OM656 D30T M =

2023–present X254 GLC 450 d 4MATIC{{Cite web |title=GLC {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/models/suv/glc/overview.html |access-date=2024-09-02 |website=www.mercedes-benz.de |language=de-DE}}
2023–present C254 GLC 450 d Coupe 4MATIC{{Cite web |title=GLC Coupé {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/models/suv/glc-coupe/overview.html |access-date=2024-09-02 |website=www.mercedes-benz.de |language=de-DE}}
2023–present W214 E 450 d 4MATIC{{Cite web |title=Konfigurator & Preise {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/mercedes-benz-cars/car-configurator.html/motorization/CCci/DE/de/E-KLASSE/LIMOUSINE |access-date=2024-08-31 |website=www.mercedes-benz.de |language=de-DE}}
2023–present V167 GLE 450 d 4 MATIC
2023–present C167 GLE 450 d Coupe 4MATIC
2023–present W223 S 450 d 4MATIC
2023–present X167 GLS 450 d 4MATIC{{Cite web |title=Konfigurator & Preise {{!}} Mercedes-Benz |url=https://www.mercedes-benz.de/passengercars/mercedes-benz-cars/car-configurator.html/motorization/CCci/DE/de/GLS-KLASSE/OFFROADER |access-date=2024-08-31 |website=www.mercedes-benz.de |language=de-DE}}
2023–present W465 G 450 d

References

External links

[http://www.daimler.com/innovation/diesel/om656-2.html OM 656. Most powerful diesel car in Mercedes-Benz history]

OM656

Category:Diesel engines by model

Category:Straight-six engines