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Paul Dunton v. Mercedes-Benz USA, LLC), which alleged the M272 engines are equipped with defective balance shafts gears which "wear out prematurely, excessively and without warning, purportedly causing the vehicles to malfunction, the check engine light to illuminate and the vehicle to misfire and/or stop driving." The suit further alleged that
Mercedes knew of this problem, sending out repair bulletins on how to address this issue and ultimately changing the balance shaft gears to avoid this problem. This suit was ultimately dismissed with the judge agreeing with Mercedes that because the gears fail at 60 -80K miles and outside of the warranty period, Mercedes is not legally responsible for these problems.
521:
in 2006 under the name
Stratified-Charged Gasoline Injection (CGI). First fitted to the CLS350 CGI, it produces 292 PS (215 kW; 288 bhp) and 365 N⋅m (269 lb⋅ft) of torque while lowering fuel consumption. In 2008, the non-CGI engine was uprated to 316 PS (232 kW; 312 bhp) at 6500 rpm and 360 N⋅m (266 lb⋅ft) of torque at 4900 rpm with 350Nm being delivered at 2000rpm. This was achieved by raising the rev-limit to 7200 rpm, increasing the
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M272 engines that were sold between 2004 and 2008 with engine serial numbers below 2729..30 468993 often show early wear of the balance shaft gears, requiring extensive repairs at a retail cost of over $ 4,000. These complaints led to a class action lawsuit against
Mercedes-Benz (Greg Suddreth and
520:
is a 3.5 L (3,498 cc) version. Bore and stroke dimension is 92.9 mm × 86 mm (3.66 in × 3.39 in). Output is 272 PS (200 kW; 268 bhp) at 6000 rpm with 350 N⋅m (258 lb⋅ft) of torque at 3500 rpm. A direct injected variant debuted
655:
also has similar issues but not to the same extent. The plastic lever that operates the opening and closing of the variable length intake manifold can break prematurely. Mercedes doesn't have this particular part listed, instead they sell the whole intake manifold as one unit which can cost upwards
525:
using enhanced, weight-optimized pistons with a curved surface, reinforcements in the area of the piston pins, deeper pockets for the valve seats, single-stage intake manifold, lightweight valves with sodium cooling, conical valve springs, tri-oval chain sprocket, and a new cylinder head.
647:
However, a second class action lawsuit was filed in
October 2012 in Northern California, covering Mercedes-Benz models manufactured between 2005 and 2007. A preliminary settlement was reached on April 8, 2015, which would see owners compensated for up to 70% of the cost of the repair.
353:
is a 2.5 L (2,496 cc) version. Bore and stroke dimension is 88 mm × 68.4 mm (3.46 in × 2.69 in). Output is 204 PS (150 kW; 201 bhp) at 6100 rpm with 245 N⋅m (181 lb⋅ft) of torque at 2900-5500 rpm.
410:
is a 3.0 L (2,996 cc) version. Bore and stroke is 88 mm × 82 mm (3.46 in × 3.23 in). Output is 231 PS (170 kW; 228 bhp) at 6000 rpm with 300 N⋅m (221 lb⋅ft) of torque at 2500-5000 rpm.
318:
is installed in the engine block between the cylinder banks to deal with vibrations in the 90 degree V6 design. This essentially eliminates first and second order moments. A dual-length
866:"ORDER by Judge Thelton E. Henderson granting 142 Motion for Preliminary Approval of Class Action Settlement. Motion for Final Approval due 08/03/2015. (Filed on 4/8/2015)"
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was adopted for the first time. Featured on both the intake and exhaust camshafts, each can be varied through a range of 40 degrees. The twin
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of $ 800 US. There are a number of third-party companies that sell a replacement lever made out of metal at a much cheaper cost.
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system was replaced by a regular single spark plug per cylinder. New electronic coolant flow control has replaced the mechanical
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All M272 engines have aluminum engine blocks with a 90° V-angle with silicon/aluminum lined cylinders. The aluminum
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https://web.archive.org/web/20160115082755/http://www.emercedesbenz.com/Feb06/24WorldPremierOfMercedesCLS30CGI.html
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845:"Mercedes-Benz named in class action over safety issues related to its M272 or M273 engines"
725:"Mercedes-Benz named in class action over safety issues related to its M272 or M273 engines"
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for improved engine warm-up and optimum control of engine temperature. Also
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family used in the 2000s (decade). Introduced in 2004, it is based on the
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These engines also have a common issue with their intake manifolds. The
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747:"How to interpret Balance Shaft Sprocket Engine Serial #?"
365:(M272 929 for flex fuel vehicles with the ethanol option)
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204–316 PS (150–232 kW; 201–312 bhp)
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824:"District Court Dismisses Automotive Class Action"
341:are used to improve output at low engine speeds.
683:http://www.autospeed.com/cms/A_2084/article.html
802:"Mercedes M272 & M273 Engine Class Action"
704:"Mercedes M272 & M273 Engine Class Action"
8:
769:"Mercedes-Benz M272 Balance Shaft Failure"
322:is fitted to optimize engine flexibility.
27:
18:
16:Reciprocating internal combustion engine
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397:(Chinese market; known as the M272 924)
390:(Chinese market; known as the M272 924)
232:245–365 N⋅m (181–269 lb⋅ft)
7:
627:CL203 C 350 SportCoupé & CLC 350
382:CL203 C 230 SportCoupé & CLC 230
800:O'Donnell, Matt (15 October 2010).
702:O'Donnell, Matt (15 October 2010).
639:Balance shaft gear and other issues
14:
616:(known as the M272 978 in China)
781:from the original on 2021-12-13
320:Variable Length Intake Manifold
1:
666:List of Mercedes-Benz engines
462:E 280 / E 280 4MATIC (W211)
450:C 300 / C 300 4MATIC (W204)
444:C 280 / C 280 4MATIC (W204)
438:C 280 / C 280 4MATIC (W203)
113:68.4 mm (2.69 in)
103:92.9 mm (3.66 in)
917:
91:3.5 L (3,498 cc)
89:3.0 L (2,996 cc)
87:2.5 L (2,496 cc)
590:W221 S 350 / S 350 4MATIC
584:W212 E 350 / E 350 4MATIC
578:W211 E 350 / E 350 4MATIC
572:W204 C 350 / C 350 4MATIC
566:W203 C 350 / C 350 4MATIC
117:86 mm (3.39 in)
115:82 mm (3.23 in)
101:88 mm (3.46 in)
26:
426:CLS 280 / CLS 300 (C219)
306:, iron-coated aluminum
284:V6 introduced in 1998.
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179:direct injection (CGI)
896:Mercedes-Benz engines
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456:GLK 300 4MATIC (X204)
293:4 valves per cylinder
291:cylinder heads have
633:X204 GLK 350 4MATIC
314:. Like the M112, a
72:Naturally aspirated
822:Jackson, Russell.
767:ZbylutMotorWorks.
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256:Mercedes-Benz M276
246:Mercedes-Benz M112
22:Mercedes-Benz M272
523:compression ratio
302:, one-piece cast
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420:SLK 280 (R171)
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872:. Retrieved
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554:C209 CLK 350
548:W219 CLS 350
535:R171 SLK 350
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517:
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498:Viano (W639)
492:S 300 (W221)
486:R 280 (W251)
468:E 300 (W212)
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339:tumble flaps
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297:forged steel
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218:Power output
206:Water cooled
83:Displacement
42:Manufacturer
608:W164 ML 350
596:R230 SL 350
505:Vito (W639)
480:Vito (W639)
325:Continuous
295:. All have
242:Predecessor
901:V6 engines
890:Categories
689:References
631:2008–2012
625:2005–2011
619:2006–2013
614:W639 Viano
612:2005–2014
606:2006–2011
602:W251 R 350
600:2006–2017
594:2005–2012
588:2005–2011
582:2009–2011
576:2005–2009
570:2007–2011
564:2005–2007
558:2009–2011
552:2005–2010
546:2004–2010
533:2004–2011
503:2013–2015
496:2013–2015
490:2007–2013
484:2006–2009
478:2005–2013
472:2005–2009
466:2009–2011
460:2005–2009
454:2008-2012
448:2009–2011
442:2007–2009
436:2005–2007
430:2005–2010
424:2005–2010
418:2004–2010
393:2010–2011
388:W639 Viano
386:2010–2012
380:2004–2011
376:W211 E 230
374:2005–2009
370:W204 C 230
368:2007–2009
363:W203 C 230
361:2005–2007
335:thermostat
331:spark plug
304:crankshaft
272:automobile
237:Chronology
195:(M272 929)
163:Combustion
145:Valvetrain
53:Production
560:C207 E350
395:W639 Vito
278:V6 engine
252:Successor
185:Fuel type
56:2004–2017
874:June 29,
779:Archived
660:See also
189:Gasoline
139:Aluminum
136:material
128:Aluminum
125:material
36:Overview
850:Mar 12,
829:Mar 12,
807:Mar 12,
785:Mar 12,
774:YouTube
752:Mar 12,
730:Aug 29,
709:Aug 29,
308:pistons
275:piston
212:Output
171:system
61:Layout
869:(PDF)
191:or
876:2015
852:2013
831:2013
809:2013
787:2013
754:2013
732:2013
711:2013
653:M273
516:The
406:The
349:The
289:DOHC
282:M112
268:M272
263:The
169:Fuel
150:DOHC
74:90°
518:E35
512:E35
408:E30
402:E30
351:E25
345:E25
327:VVT
193:E85
177:or
157:VVT
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777:.
771:.
76:V6
878:.
854:.
833:.
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