M278 278928 Car Engine for Mercedes Benz E-Class S-Class 4.0L 4.7L M278928 2780104903

Engine Code:	M278 278928
HG No:	HGLB2020
Car Series:	German Car
Car Brand:	Mercedes-Benz
Car Model:	Mercedes Benz E-Class S-Class GL450/500/550 GLE500

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Product Description

The Mercedes M278 is a 4.7-liter (4,663 cc) twin-turbocharged V8 engine introduced in 2010 to replace the M273, used across models like the E-Class, S-Class, GL-Class, CL-Class, SL-Class, and CLS-Class. With a bore and stroke of 92.9 mm × 86 mm, the M278 is available in several output configurations despite sharing the same displacement.

The standard version produces 320 kW (435 PS) and 700 N·m of torque at 1,800–3,500 rpm, powering models such as the S-Class, CL-Class, SL-Class, and GL550. A detuned variant for the CLS-Class, E-Class, and M-Class delivers 300 kW (408 PS) and 600 N·m at 1,600 rpm. Another version used in the GL450 outputs 270 kW (367 PS) and 550 N·m. In later S-Class models, power was raised to 335 kW (455 PS) while torque remained at 700 N·m. Despite differing outputs, these models typically retain the "550" badge regardless of actual engine displacement.

Related engine code:M113 E43, M113 E50, M113 E55, M119 E42, M119 E50, M119 E60, M156, M157, M177, M273, M278

Applicable Models:

2011–2017 S 500/S 550

2011–2014 CL 500/CL 550

2015–2017 S 500 Coupé/S 550 Coupé

2011–2018 CLS 500/CLS 550

2012–2020 SL 500/SL 550

2012–2014 E 500/E 550

2012–2014 ML 500/ML 550

2013–2014 GL 450

2013–2019 GL 500/GLS 500/GL 550/GLS 550

Car Engine Parts Diagram

Let us take a look at a detailed car engine parts diagram, which highlights the essential internal components of an engine. This type of diagram helps us visualize the exact location and arrangement of each part. It typically includes major elements such as the rocker cover, rocker arms, valve springs, cylinder head, spark plugs, valves, engine block, pistons, connecting rods, crankshaft, camshaft, timing chain, oil pump, oil pan, and flywheel. Also shown are related parts like the ignition distributor, fuel pump, gaskets, and distribution components. By referring to such a diagram, we can gain a better understanding of how these parts interact to power a vehicle's engine.

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Related FAQ

Q: How can you ensure the quality?

A: We strictly test 100% products before delivery to guarantee each set in excellence.
Q: How about the after-sales service?

A: 12 months quality warranty. Once you meet any problem during application, you could contact us at 24/7.
Q: Sample Available?

A: Yes, it's sure for you to choose sample or samples to test product quality and our service, which is our pleasure.
Q: What is the terms of payment?

A: Usually, 30% deposit in advance and 70% payment before shipment.
Q: What is the delivery date?

A: Generally, if in small amount, the delivery is 10 work days around after payment, while in large demands, we need to confirm it by fact.
Q: Could I purchase other engine parts from your company?

A: Yes, definitely. We supply engine assembly, engine block, cylinder block, cylinder head, and spare parts applicable with the most of auto cars and trucks. You could leave the OE number or engine number of what you wanna purchase, then we could talk about the details further.

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