Mercedes-Benz M104 engine#AMG 3.6 L M104.941/M104.992

As Mercedes needed a compact 6-cylinder for their Vito, they agreed with Volkswagen to use their VR6 engine, which they then designated M104.900.{{Cite web|title=MERCEDES BENZ V-Klasse (W638) specs & photos - 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003|url=https://www.autoevolution.com/cars/mercedes-benz-v-klasse-w638-1996.html|access-date=2020-09-03|website=autoevolution|language=en}}{{Cite web|title=V 280|url=https://mercedes-benz-publicarchive.com/marsClassic/de/instance/ko/V-280.xhtml?oid=5632|access-date=2020-09-03|website=marsClassic|language=de}} An agreement was reached and the engines were sold semi-completed to Mercedes-Benz. This version is unrelated to other engines designated M104. Only the engine cover and aircleaner housing is by Mercedes-Benz.

This {{convert|2960|cc|L|1|abbr=on|disp=flip}} 24v was introduced as a sports car resp. top model completing the line-up of M103 12v engines. The M104 featured dual overhead camshafts and four valves per cylinder. The M103 and M104.98x were later replaced by the 2.8-litre and 3.2-litre versions of the M104.

The {{convert|2960|cc|L|1|abbr=on|disp=flip}} M104 featured KE-Jetronic fuel injection, cylinder specific ignition-timing, variable valve timing and under-piston cooling jets.

;Specifications

• Engine power @ 6400 rpm or 6300 (300E-24 300S 300SL-24): {{convert|217|to|228|hp|kW PS|0|abbr=on}} (without catalytic converter).version R129 300SL-24 has {{convert|170|kW|PS hp|0|abbr=on}} {{convert|272|Nm|lbft|0|abbr=on}} version of 3-liter M104 engine.{{Cite web |title=300 SL-24 |url=https://mercedes-benz-publicarchive.com/marsClassic/en/instance/ko/300-SL-24.xhtml?oid=4722 |access-date=2023-02-15 |website=marsClassic |language=en}}{{Cite web |title=Road test -- Mercedes-Benz 300SL-24 |url=https://www.motorsportmagazine.com/archive/article/december-1991/50/road-test-mercedes-benz-300sl-24/ |access-date=2023-02-15 |website=Motor Sport Magazine |date=2 March 2016 |language=en-GB}}{{Cite web |title=Greatest road tests ever: Mercedes-Benz 300SL-24 |url=https://www.autocar.co.uk/car-news/from-the-archive/greatest-road-tests-ever-mercedes-benz-300sl-24 |access-date=2023-02-15 |website=Autocar |language=en}}{{Cite web |title=Mercedes-Benz 300 SL-24 Manual 2 doors tech specs |url=https://www.cars-data.com/en/mercedes-benz-300-sl-24-specs/25226/tech |access-date=2023-02-15 |website=Cars-Data.com |language=en}}{{Cite web |title=Mercedes-Benz 300 SL-24 :: 1 photo and 62 specs :: autoviva.com |url=https://www.autoviva.com/300_sl_24/version/10491?&switch_pricing_country=1 |access-date=2023-02-15 |website=www.autoviva.com |language=en}}{{Cite web |last=Wilson |first=Lori |date=2023-01-13 |title=The Last Manual Transmission Mercedes-Benz SL Catches Doug DeMuro Off Guard |url=https://www.hotcars.com/last-manual-transmission-mercedes-benz-sl-doug-demuro/ |access-date=2023-02-15 |website=HotCars |language=en}}{{Cite web |title=Detailed specs review of 1992 Mercedes-Benz 300 SL-24 model for Europe |url=https://www.automobile-catalog.com/car/1992/1521335/mercedes-benz_300_sl-24.html |access-date=2023-02-15 |website=www.automobile-catalog.com}}{{Cite web |title=Specifikationer för Mercedes-Benz 300 SL-24 R129 |url=https://www.car.info/sv-se/mercedes-benz/sl-class/300-sl-24-6633433/specs |access-date=2023-02-15 |website=car.info |language=sv}}{{Cite web |last=Niederle |first=Pavel |title=Mercedes Benz M104.981 engine (3.0, 170 kW) |url=https://en.mercedesclub.cz/engine_detail.php?id=292 |access-date=2023-02-15 |website=Mercedes Benz club |language=en}}{{Cite web |title=Mercedes-Benz 300SL 24V 3.0 W129 Series (3.0) - Mercedes 300 SL 24V (3.0) - 2960 - Enginerebuilding.eu |url=http://www.enginerebuilding.eu/mercedes/mercedes-benz-300sl-24v-30-w129-m104-981.html |access-date=2023-02-15 |website=www.enginerebuilding.eu}}
• Torque @ 4600 rpm: {{convert|265|Nm|lbft|0|abbr=on}} or {{convert|272|Nm|lbft|0|abbr=on}} (without catalytic converter)
• Bore and stroke: {{convert|88.5x80.2|mm|in|2|abbr=on}}
• Compression ratio: 10:1

;Applications:

• 1989–1992 C124 300 CE-24
• 1991–1992 A124 300 CE-24
• 1988–1993 R129 300 SL-24
• 1990–1993 W124 300 E-24
• 1990–1993 S124 300 TE-24
• 1987–1993 Isdera Spyder 036i 3.0-24V

In 1993, two capacities replaced the 3.0 litre: a {{convert|2799|cc|L cuin|1|abbr=on|disp=flip}} replaced the old single-cam M103 engine and the 3.2 litre M104.99x replaced the double-cam M104.98x. W124 280 E (1992–1993) was the only Mercedes-Benz model which get increased of power to {{convert|145|kW|PS hp|0|abbr=on}}.{{Cite web |title=1992 Mercedes-Benz 280 E Automatic W 124 specifications, technical data, performance |url=https://www.carfolio.com/mercedes-benz-280-e-automatic-740696 |access-date=2023-02-23 |website=www.carfolio.com}}{{Cite web |title=Mercedes-Benz 280 (W124) 280 E (197 Hp) |url=https://www.autodata1.com/en/car/mercedes-benz/280/280-w124-280-e-197-hp |access-date=2023-02-23 |website=AutoData1 |language=en}}{{Cite web |title=Mercedes-Benz 280 E 197hp, 1992 |url=https://www.car.info/en-se/mercedes-benz/e-class/e-class-sedan-1992-19366280 |access-date=2023-02-23 |website=car.info}}{{Cite web |title=Mercedes-Benz 280 (W124) 280 E (197 Hp) 1992, 1993 specifications, prices & reviews |url=https://xezii.com/en/xe/mercedes-benz-mercedes-benz-280-w124-280-e-197-hp-1992-1993 |access-date=2023-02-23 |website=xezii.com |language=en}}{{Cite web |title=Mercedes-Benz 280 280 (W124) • 280 E (197 Hp) technical specifications and fuel consumption — AutoData24.com |url=https://autodata24.com/mercedes-benz/280/280-w124/280-e-197-hp/details |access-date=2023-02-23 |website=autodata24.com}}{{Cite web |title=Detailed specs review of 1992 Mercedes-Benz 280 E automatic 4-speed offered since September 1992 for Europe |url=https://www.automobile-catalog.com/car/1992/1514330/mercedes-benz_280_e_automatic_4-speed.html |access-date=2023-02-23 |website=www.automobile-catalog.com}}{{Cite web |last=Cars-Directory.NET |title=Mercedes-Benz W124 (facelift 1989) 280 E (197 Hp) Automatic 1992 - 1993 Specs and Technical Data, Fuel Consumption, Dimensions |url=https://www.cars-directory.net/car-specs/mercedes-benz/w124/w124-facelift-1989-6502/280-e-197-hp-automatic-35208/ |access-date=2023-02-23 |website=Cars-Directory.NET |language=en}}{{Cite web |title=Technical specs Mercedes-Benz 280 |url=https://cararac.com/spec/mercedes-benz/280/sedan-1992/ |access-date=2023-02-23 |website=cararac.com |language=en}}

;Specifications for 2.8 L

• Engine power @ 5500 rpm: {{convert|142|kW|PS hp|0|abbr=on}} or 145–148 kW (197 PS; 195 hp/201PS; 199 hp) on SsangYong models
• Torque @ 3750 rpm: {{convert|270|Nm|lbft|0|abbr=on}} or 271–277 N·m (199–204 lb·ft) on SsangYong models
• Bore and stroke: {{convert|89.9x73.5|mm|in|2|abbr=on}}

;Applications:

• 1993–1997 W202 C 280
• 1995–1997 W210 E 280
• 1992–1993 W124 280 E
• 1994–1996 W124 E 280
• 1993–1998 W140 300 SE 2.8, S 280
• 1993–1998 R129 SL 280
• 1997–2004 W124 SsangYong Chairman H CM500S
• 2003–2006 Y200 SsangYong Rexton I RX 280

For the {{convert|3199|cc|L|1|abbr=on|disp=flip}}, the compression ratio is the same 10.0:1 on all W210, R129, and W140 but it did differ from 9.2:1 to 10.0:1 on W124 (M104.992).{{Cite web|url=http://www.motorreviewer.com/engine.php?engine_id=30|title=M104 3.2L Engine Specifications And Review on MotorReviewer.com|website=www.motorreviewer.com|language=en|access-date=2020-08-24}}W140 pre-facelift model 300 SE / SEL, W140 facelift model S320/ L and R129 SL320 used more powerful version of 3.2-liter M104 engine which produced {{convert|170|kW|PS hp|0|abbr=on}}.{{Cite web |title=Detailed specs review of 1995 Mercedes-Benz SL 320 offered since September 1995 for Europe |url=https://www.automobile-catalog.com/car/1995/1521590/mercedes-benz_sl_320.html |access-date=2023-02-26 |website=www.automobile-catalog.com}}{{Cite web |title=1993 Mercedes-Benz SL (R129) SL 320 (231 Hp) Automatic {{!}} Technical specs, data, fuel consumption, Dimensions |url=https://www.auto-data.net/en/mercedes-benz-sl-r129-sl-320-231hp-automatic-41277 |access-date=2023-02-26 |website=www.auto-data.net |language=en}}{{Cite web |title=Mercedes Benz SL (R129) 320 Technical Specs, Fuel Consumption, Dimensions |url=https://www.ultimatespecs.com/car-specs/Mercedes-Benz/2791/Mercedes-Benz-SL-(R129)-320.html/amp |access-date=2023-02-26 |website=www.ultimatespecs.com}}{{Cite web |title=1993-1998 Mercedes SL 320 R129 Specs & Performance, Ranks & Comparisons 🚘 |url=https://www.encycarpedia.com/mercedes/93-sl-320-roadster |access-date=2023-02-26 |website=encyCARpedia |language=en-GB}}{{Cite web |last=Cars-Directory.NET |title=Mercedes-Benz SL (R129) SL 320 (231 Hp) Automatic 1993 - 1995 Specs and Technical Data, Fuel Consumption, Dimensions |url=https://www.cars-directory.net/car-specs/mercedes-benz/sl/sl-r129-5860/sl-320-231-hp-automatic-31846/ |access-date=2023-02-26 |website=Cars-Directory.NET |language=en}}{{Cite web |title=Mercedes Benz W140 Class S 320 Technical Specs, Fuel Consumption, Dimensions |url=https://www.ultimatespecs.com/car-specs/Mercedes-Benz/2718/Mercedes-Benz-W140-Class-S-320.html/amp |access-date=2023-02-26 |website=www.ultimatespecs.com}}{{Cite web |title=1993 Mercedes-Benz S-class (W140) S 320 (231 Hp) 4 Automatic {{!}} Technical specs, data, fuel consumption, Dimensions |url=https://www.auto-data.net/en/mercedes-benz-s-class-w140-s-320-231hp-4-automatic-37022 |access-date=2023-02-26 |website=www.auto-data.net |language=en}}{{Cite web |last=Cars-Directory.NET |title=Mercedes-Benz S-class (W140) S 320 (231 Hp) Automatic 1993 - 1998 Specs and Technical Data, Fuel Consumption, Dimensions |url=https://www.cars-directory.net/car-specs/mercedes-benz/s-class/s-class-w140-6062/s-320-231-hp-automatic-33022/ |access-date=2023-02-26 |website=Cars-Directory.NET |language=en}}{{Cite web |title=1993-1998 Mercedes S 320 W140 Specs & Performance, Ranks & Comparisons 🚘 |url=https://www.encycarpedia.com/mercedes/93-s-320-saloon |access-date=2023-02-26 |website=encyCARpedia |language=en-GB}}{{Cite web |title=Detailed specs review of 1993 Mercedes-Benz 300 SE offered since mid-year 1992 for North America U.S. |url=https://www.automobile-catalog.com/car/1993/1524170/mercedes-benz_300_se.html |access-date=2023-02-26 |website=www.automobile-catalog.com}}

;Specifications

• Engine power @ 5500 rpm: {{convert|162|kW|PS hp|0|abbr=on}} or {{convert|170|kW|PS hp|0|abbr=on}}
• Torque @ 3750 rpm: {{convert|310|Nm|lbft|0|abbr=on}} or {{convert|315|Nm|lbft|0|abbr=on}}
• Bore and stroke: {{convert|89.9x84|mm|in|2|abbr=on}}
• Compression ratio: 9.2:1 to 10.0:1
• Intake valves: {{convert|35|mm|abbr=on}}
• Exhaust valves {{convert|31|mm|abbr=on}}
• Starter motor: 1.7 kW electrical motor
• Ignition system: electronic ignition system

;Applications:

• Mercedes-Benz
• 1993–1994 W124 320 E
• 1994–1996 W124 E 320
• 1995–1997 W210 E 320
• 1991–1993 W140 300 SE, 300 SEL
• 1993–1999 W140 S 320
• 1994–1998 R129 SL 320
• 1994–1998 W463 G 320
• Roewe
• 2011–2017 W5
• 2008–2009 R95
• SsangYong
• 1997-2017 Chairman
• 1996-2006 Korando
• 2007-2014 Kyron
• 1993–1999 Musso
• 2001–2006 Rexton Y200
• 2004–2013 Rodius
• Heuliez
• 1996 Intruder
• Status & Class
• 1999 OPAC Contender XG

There were 3.3 L conversions done to the 3.0 L M104.980 by AMG, prior to their formal cooperation with Daimler Benz.

AMG developed a 3.3 L M104 that was used principally in the 300E AMG 3.4, AMG 3.4 CE and 300TE-3.4 AMG (Mercedes-Benz W124) vehicles, produced between 1988 and 1993. A few of these engines were originally installed in the SL 3.4 AMG.

;Specifications for AMG 3.4 (3.3 L)

• Engine power @ 6500 rpm: {{convert|200|kW|PS hp|0|abbr=on}}
• Torque @ 4500 rpm: {{convert|330|Nm|lbft|0|abbr=on}}
• Bore and stroke: {{convert|91.5x84|mm|2|abbr=on}}
• Lubrication system: pressure circulation
• Oil capacity: {{convert|7.5|L|USgal impgal}}
• Coolant capacity: {{convert|9|L|USgal impgal}}
• Starter motor: 1.7 kW electrical motor
• Ignition system: Bosch KE-Jetronic (CIS-E) injection

There were 3.6 L conversions done to both the M103 and M104 by Brabus, among others.

AMG developed a {{convert|3606|cc|L cuin|1|abbr=on|disp=flip}} M104 that was used in the W202 C36 AMG (W202) from M104.941, the W124 E36 AMG (W124) from M104.992, the E36 AMG (W210), and the G36 AMG (W463) vehicles.

The AMG 3.6 M104 was rated at {{Convert|276|hp|kW PS|0|abbr=on}} at 5,750 rpm and {{Convert|284|lbft|Nm|0|abbr=on}} of torque at 4,000 rpm using the HFM engine management system. Bore and stroke is {{Convert|91x92.4|mm|2|abbr=on}} with a compression ratio of 10.5. AMG later conceded that since the engine was hand modified, power outputs could vary slightly from {{Convert|276|to|287|hp|kW PS|0|abbr=on}}.

The boost in displacement was obtained by boring the 2.8 litre M104 block by {{Convert|2.1|mm|abbr=on}} and using a highly modified version of the crankshaft from the 3.5L OM603 to increase throw by {{Convert|18.9|mm|abbr=on}}; this necessitated the use of new forged pistons with shorter skirts. A larger intake crossover pipe, free-flowing exhaust, a unique intake camshaft, minor changes to the cylinder head, and modifications to the HFM fuel computer also contribute to the increase in power.

Ssangyong (South Korean brand) made a 3.6 litre variant of the M104 inline-six engine based on the 2.8 litre model, producing {{Convert|248|hp|kW PS|0|abbr=on}} or {{Convert|276|hp|kW PS|0|abbr=on}} on earlier versions, for its Chairman model, a full-size luxury sedan. Chinese car Roewe R95L which based on SsangYong Chairman also uses a 3.6 litre version of the M104 engine.

Last versions of the German sports car Isdera Spyder 036i after 1990 also use 3.6 litre AMG variant of M104, producing 268 (200 kW; 272 PS) or 282 hp (210 kW; 286 PS).

File:Mercedes M104 AMG 3.6.jpg

Turbocharger kits were offered for both the M103 and M104 engines by Turbo Technics, Mosselman, Lotec, MAD Modify, Turbobandit and other tuners. These conversions typically raised engine output to between {{Convert|300|and|800|PS|kW hp|0|abbr=on}}, depending on Boost Target.

During the 1990s UK customers were able to buy new vehicles equipped with a Turbo Technics conversion directly from Mercedes dealer Hughes of Beaconsfield (limited run of 75 conversions). Today turbocharger kits for M103-M104 engines are available from later tuners in Europe and Asia.

{{DEFAULTSORT:Mercedes-Benz M104 Engine}}

M104

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