Mercedes-Benz M 276
| Mercedes Benz | |
|---|---|
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| M 276 | |
| Manufacturer: | Mercedes Benz |
| Production period: | since 2011 |
| Design: | V , six-cylinder |
| Engines: | 3.0 liters (2996 cm³) 3.5 liters (3498 cm³) |
| Previous model: | M 272 |
| Successor: | M 256 |
| Similar models: | M 278 |
The Mercedes-Benz M 276 is a series of six-cylinder - V-engines ( gasoline engines that) Mercedes-Benz since the fall of 2010 as a successor to the M-272 produces generation. Compared to its predecessor, the cylinder bank angle has been reduced from 90 ° to 60 °, so that even without a balancer shaft, there are no free mass moments of the first order. The main components are manufactured in the Stuttgart-Bad Cannstatt engine plant , where the engine is also assembled.
The engine generation is closely related to the eight-cylinder M 278 series, although these have a 90 ° cylinder bank angle. The M 276 made its debut in spring 2011 in the facelifted C-Class (204 series) , in the SLK (R 172) and in the CLS (218 series) as well as in numerous 4Matic models.
technology
At the beginning, only aggregates with a displacement of 3.5 liters were used. Since the spring of 2013, an engine reduced in displacement to three liters, which is charged by means of two turbochargers, has also been available.
M 276 DES 35
The displacement of the six-cylinder - V-type engine is 3498 cm³ with a bore of 92.9 mm and a stroke of 86 mm, mm at a cylinder distance from the 106th The compression ratio is 12.2: 1. The crankcase, the pistons and the cylinder head of the engine are made of aluminum, with the cylinder liners made of gray cast iron. In the 225 kW (306 PS) version, the motor weighs 170.6 kg in accordance with the DIN standard.
The control of the charge cycle takes place via four valves per cylinder ( four-valve technology ) and in each cylinder bank two overhead by a timing chain driven camshaft . The engine also has camshaft adjustment for the intake and exhaust sides.
A jet- guided direct petrol injection of the third generation (200 bar fuel pressure) with BlueDirect combustion process and piezo injectors is used. In conjunction with multiple ignition and the new stratified combustion process with an extended map range, including fuel-efficient lean burn, this should contribute to reduced fuel consumption.
The power consumption of ancillary units has been reduced. These include an optimized water pump with second generation heat management, a regulated oil pump, a volume-regulated high-pressure fuel pump and an intelligent generator control. Through consistent lightweight construction and intensive fine-tuning, engine friction has also been significantly reduced compared to the previous engine. Together with the start-stop technology , shifting the shift point and reducing friction, overall improvements in driving consumption of over 20 percent were possible.
M 276 DEH 30 LA
The displacement of this variant is 2996 cm³ with an identical stroke-to-bore ratio as the 3.5 liter variant (bore 88 mm, stroke 82.1 mm). The compression ratio is 10.7: 1. In the 245 kW (333 PS) version, the motor weighs 179.2 kg in accordance with the DIN standard.
The so-called NANOSLIDE® coating is used for the first time on an aluminum die-cast crankcase to optimize the cylinder liner. This is an iron-carbon layer that is applied directly to the aluminum surface using arc wire spraying and enables high oil retention volumes in the cylinder liner.
The engine is turbocharged with one turbocharger per cylinder bank ( bi-turbo ). The compressed fresh air is cooled in a water-to-air charge air cooler designed according to the counterflow principle and then fed to the cylinder banks via a common charge air distributor. The intercooler has a separate low-temperature cooling water circuit.
This engine variant was first used in the spring of 2013 in the E400 (212 series) .
M 276 DES 35 LA
This version of the 3.5-liter engine, which has been in use since 2014, has now also been converted to turbocharging. In contrast to the 3.0-liter version, the engine still has the stratified combustion process, which requires a NOx storage catalytic converter to comply with the emission limit values.
variants
M 276 DEH 30 LA red. *
| Sales description | model series | Construction period |
|---|---|---|
| Displacement: 2996 cm³, power: 200 kW (272 hp) at 5000 rpm, torque: 400 Nm at 1300–4500 rpm | ||
| E 320 | C / A 207 | 2014-2017 |
| R 320 | V 251 | 2014-2017 |
M 276 DEH 30 LA *
| Sales description | model series | Construction period |
|---|---|---|
| Displacement: 2996 cm³, output: 245 kW (333 hp) at 5250–6000 rpm, torque: 480 Nm at 1600–4000 rpm | ||
| ML 400 / GLE 400 | W 166 | 2015-2018 |
| GL 400 / GLS 400 | X 166 | since 2014 |
| C 400 | W / S 205 | since 2014 |
| E 400 | C / A 207 | 2013-2014 |
| E 400 | C / A 238 | since 2017 |
| E 400 | W / S 212 | 2013-2014 |
| S 500 PLUG-IN HYBRID | V 222 | 2014-2017 |
| SL 400 | R 231 | 2014-2016 |
| R 400 | V 251 | 2014-2017 |
| GLE 400 Coupé | C 292 | 2015-2018 |
| Displacement: 2996 cm³, output: 270 kW (367 hp) at 5500-6000 / min, torque: 520 Nm at 2000-4200 / min | ||
| C 450 AMG Mercedes-AMG C 43 4MATIC |
W / S / C / A 205 | 2015-2018 |
| Mercedes-AMG GLC 43 4MATIC | X 253 | since 2016 |
| Mercedes-AMG GLC 43 4MATIC Coupé | C 253 | since 2016 |
| GLE 450 AMG Mercedes-AMG GLE 43 4MATIC |
W 166 | 2015-2017 |
| GLE 450 AMG Coupé Mercedes-AMG GLE 43 4MATIC Coupé |
C 292 | 2015-2017 |
| S 400 4MATIC Coupé | C 217 | 2015-2018 |
| SL 400 | R 231 | since 2016 |
| Mercedes-AMG SLC 43 | R 172 | 2016-2018 |
| Displacement: 2996 cm³, output: 287 kW (390 hp) at / min, torque: 520 Nm at 2500-5000 / min | ||
| Mercedes-AMG C 43 4MATIC | W / S / C / A 205 | since 2018 |
| Mercedes-AMG GLE 43 4MATIC | W 166 | 2017-2018 |
| Mercedes-AMG GLE 43 4MATIC Coupé | C 292 | since 2017 |
| Mercedes-AMG SLC 43 | R 172 | since 2018 |
| Displacement: 2996 cm³, output: 295 kW (401 hp) at 6100 rpm, torque: 520 Nm at 2500-5000 rpm | ||
| Mercedes-AMG E 43 4MATIC | W / S 213 | 2016-2018 |
M 276 DES 35 red. *
| Sales description | model series | Construction period |
|---|---|---|
| Displacement: 3498 cm³, output: 185 kW (252 hp) at 6500 rpm, torque: 340 Nm at 3500-4500 rpm | ||
| ML 300 4MATIC / GLE 300 4MATIC | W 166 | 2012-2017 |
| E 300 E 300 BlueEFFICIENCY |
C / A 207 | 2013–2014 2011–2013 |
| E 300 E 300 BlueEFFICIENCY |
W / S 212 | 2013–2014 2011–2013 |
| CLS 300 | C 218 | 2012-2018 |
M 276 DES 35 *
| Sales description | model series | Construction period |
|---|---|---|
| Displacement: 3498 cm³, output: 225 kW (306 hp) at 6500 rpm, torque: 370 Nm at 3500-5250 rpm | ||
| ML 350 ML 350 BlueEFFICIENCY GLE 350 (USA) |
W 166 | 2013–2014 2011–2013 since 2017 |
| SLK 350 SLK 350 BlueEFFICIENCY |
R 172 | 2013–2016 2011–2013 |
| C 350 C 350 BlueEFFICIENCY |
W / S / C 204 | 2013–2015 2011–2013 |
| GLK 350 GLK 350 BlueEFFICIENCY |
X 204 | 2013–2015 2011–2013 |
| E 350 E 350 BlueEFFICIENCY |
C / A 207 | 2013–2014 2011–2013 |
| E 350 E 350 BlueEFFICIENCY |
W / S 212 | 2013–2014 2011–2013 |
| E 400 HYBRID | W 212 | 2012-2016 |
| CLS 350 CLS 350 BlueEFFICIENCY |
C / X 218 | 2013–2014 2011–2013 |
| S 350 BlueEFFICIENCY | W / V 221 | 2011-2013 |
| S 400 HYBRID | W / V 222 | 2013-2017 |
| SL 350 | R 231 | 2012-2014 |
| R 350 BlueEFFICIENCY | W / V 251 | 2012-2014 |
M 276 DES 35 LA *
| Sales description | model series | Construction period |
|---|---|---|
| Displacement: 3498 cm³, output: 245 kW (333 hp) at 5250–6000 rpm, torque: 480 Nm at 1200–4000 rpm | ||
| E 400 | C / A 207 | 2014-2017 |
| E 400 | W / S 212 | 2014-2016 |
| E 400 | W / S 213 | 2016-2018 |
| CLS 400 | C / X 218 | 2014-2018 |
* The engine designation is encoded as follows: M = engine (Otto), series = 3 digits, DE = direct injection, displacement = deciliters (rounded), S = stratified combustion process, H = homogeneous combustion, L = charge air cooling, A = exhaust gas turbocharger, red. = reduced power
literature
- Markus Schütz, Gerhard Doll, Anton Waltner, Roland Kemmler: The new 3.0 L V6 DI gasoline engine with bi-turbo from Mercedes-Benz , in: MTZ - Motortechnische Zeitschrift 74 (2013), No. 6, p 462-471, Springer Vieweg, Wiesbaden
Individual evidence
- ↑ The cradle of engine construction - engine production in the Cannstatt plant. MB Passion Blog, May 11, 2010, accessed July 14, 2016 .
- ↑ a b c d Markus Schütz, Gerhard Doll, Anton Waltner, Roland Kemmler: The new 3.0 L V6 DI gasoline engine with bi-turbo from Mercedes-Benz , in: MTZ - Motortechnische Zeitschrift 74 (2013), No. 6, pp. 462-471, Springer Vieweg, Wiesbaden
- ↑ a b c Mercedes-Benz sets benchmarks with new V6 and V8 engines. MB Passion Blog, May 8, 2010, accessed July 14, 2016 .