EJCP.PARTS

MERCEDES-BENZ 5.5 M273

The Mercedes-Benz M273 engine is a V8 automobile piston engine family used in the 2000s (decade). It was based on the similar M272 V6 introduced in 2004. An evolution of the M113 V8, all M273s have aluminum engine blocks, SFI fuel injection, forged steel connecting rods, a one-piece cast camshaft, and a magnesium intake manifold. The cylinders are lined with silicon/aluminum, and a dual-length Variable Length Intake Manifold is fitted. In addition to this, new features shared with the M272 include DOHC aluminum cylinder heads, 4 valves per cylinder and independent continuously variable valve timing on both the intake and exhaust sides. A new electronically controlled cooling system has eliminated the need for a mechanical thermostat for improved engine warm-up and optimum control of engine temperature. The E55 is a 5.5 L (5461 cc) version. Bore is increased to 98 mm and stroke is up to 90.5 mm. Output is 382 hp (285 kW) at 6000 rpm with 391 ft·lbf (530 N·m) of torque at 2800-4800 rpm.

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
5.5 ALUMINUM ALUMINUM DOHC MPFI

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER TIMING SET VALVE COVER VALVE INFORMATION

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
5.5 DOHC 07-08 CL550 S550 ***** ***** ***** RWD S-CLASS
5.5 DOHC 07-08 CLK63 ***** ***** ***** ***********
5.5 DOHC 07-09 CLS550 E550 ***** ***** ***** ***********
5.5 DOHC 07-09 CLK550 ***** ***** ***** ***********
5.5 DOHC 07-09 E550 ***** ***** ***** AWD
5.5 DOHC 07-08 S550 ***** ***** ***** AWD
5.5 DOHC 07-08 SL550 ***** ***** ***** ***********
5.5 DOHC 08 GL550 ML550 ***** ***** ***** ***********
5.5 DOHC 09 CL550 S550 ***** ***** ***** ***********
5.5 DOHC 09 GL550 ML550 ***** ***** ***** ***********
5.5 DOHC 09 S550 ***** ***** ***** AWD
5.5 DOHC 09 SL550 ***** ***** ***** ***********
5.5 DOHC 10 CL550
10-11 S550
***** ***** ***** S-AWD
5.5 DOHC 10-11 CLS550 ***** ***** ***** ***********
5.5 DOHC 10 E550 ***** ***** ***** RWD
5.5 DOHC 10 E550 ***** ***** ***** AWD
5.5 DOHC 10-11 E550 ***** ***** ***** RWD
5.5 DOHC 10-11 S550 ***** ***** ***** RWD
5.5 DOHC 11 E550 ***** ***** ***** COUPE CONV
5.5 DOHC 11 E550 ***** ***** ***** AWD SED
5.5 DOHC 11-12 SL550 ***** ***** ***** ***********

VALVE INFORMATION

MAKE MODEL YEAR RANGE
****** ******* *******
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST ***** ***** ***** ***** ******
INTAKE ***** ***** ***** ***** *****

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