Mercedes M278 Engine Timing MarksMaximum Torque: 516 lb-ft at 1,800 – 3,500 RPM. And though this year fell flat — Red. 10 Timing chain drive, toothed belt drive03-21-2014Engine 276, engine 278, engine 157 as follows:Engine 157: Up to engine 1579xx 60 022333Engine 2768: Up to engine 2768xx 30 001280Engine 2769: Up to engine 2769xx 30 406603Engine 278: Up to engine 2789xx 30 103675Validity included in the topic section Complaint:. Its always there under load/driving and when I am at idle. tuning the Mercedes M278 engine!">All you need to know about tuning the Mercedes M278 engine!. Mercedes M278 Engine Valve Guide Wear. [2] In contrast to the port-injected M273, the M278. 2012 Mercedes-Benz ML350 4Matic 3. This machine is also referred to as the 4. Our team of Service Specialists are here to help, for even the newest autos! (207) 882-9969. Mark Hughes: The real reasons Verstappen was second. Although the 2023 Formula 1 Azerbaijan Grand Prix struggled to excite in terms of action and overtaking spectacle, the event still contained big talking points, from the title fight brewing at Red. Pert number A 004 159 81 03 I bought 9 of them, plus a spare coil, plus 2 spare wires, the offset wrench and the socket with the. 7L M278) Jan 1, 2021. 6L Engine Specs, Problems & Reliability">Mercedes M278 4. Both engines share the same diecast full aluminum cylinder block with 90-degree V-angle and Silitec low-friction cylinder liners. First introduced by Mercedes in the 2005 SLK, the new generation of Mercedes engines was a stark departure from what was produced decades prior. main issues that you encounter on the M278">What are the main issues that you encounter on the M278. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminium/silicon low-friction cylinder liners. MB M157/M278 how to setup the timing part 2. The six-cylinder debuted in spring 2011 in the facelifted C-Class and the new SLK and CLS and all 4MATIC models. The M278’s timing chain and tensioners were the vehicle’s Achilles’ heel in its early iterations. AMG63 ENGINE (M157) FAILURE. valve timing on 12 intake and 12 exhaust valves along with a new 2-stage timing chain arrangement. 9 mm, a piston stroke of 86 mm, and a compression rating of 10. The upper timing chains have three yellow marks. 【APPLICABLE ENGINE】Compatible with Mercedes Benz M133, M152, M157, M270, M274, M276, M278 engines. The M276 engine features an aluminum engine block with Nanoslide cylinder coating and dual overhead camshafts with independent variable valve timing on 12 intake and 12 exhaust valves and a new 2–stage timing chain arrangement. What are the main issues that you encounter on the M278 Marty, Mercedes Technician 57,141 Satisfied Customers Bosch Certified Master Tech. check engine, check engine light, Mercedes, service, technical service bulletin, timing, timing chain, vvt. Unpacking the calm but revealing Azerbaijan Grand Prix: F1 mailbag. The edge of the sensor wheel should be aligned in the exact center of the bore. Early m278 had noisy start issues rectified by oil system upgraded parts. The basic M278 has a displacement of 4,663 cc (4. Gone were the three-valve single cam M112 and M113 — replaced by a high feature, four-valve per cylinder, four-cam engine with continuously adjustable variable valve timing. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Adekunle Ajasin University, Akungba (AAUA) 180. Output is 320 kW (429 bhp; 435 PS) at 5,250 rpm with 700 Nm (516 lb-ft) of torque at. Rattling noise after engine start Secondary timing chains might produce a rattling sound during engine start up until the engine oil pressure builds up. Output is 320 kW (429 bhp; 435 PS) at 5,250 rpm with 700 Nm (516 lb-ft) of torque at 1,800-3,500 rpm for S-Class, CL-Class, SL-Class, and GL-Class models. Typical weak point on most MB's, bank 1 timing chain tensioner is weak on start-up so I intend to have both. The 180 JAMB Cut-off mark is general which means “any candidate that scores upto that is eligible to apply for LASU 2021 Post UTME Exercise. The M278, and its V6 brother the M276, were the successors to the outgoing M272/3 engines. What are the main issues that you encounter on the M278 engine…. Why do you need a new engine ? The electronic control systems can make engine swaps challenging, these are not 80s and 90s designs. Some engines do not have a 53 degree mark, as seen on this M276 engine. E-Class (W212) - Are Spark Plugs available for 'M278 engine - I ordered the supposedly correct Mercedes brand spark plugs for my 2012 E550 with the M278 engine. The cylinder block of M278 is made from lightweight aluminum material. On idle there is this intermittent knock / tick. Kommen Tools Camshaft Adjuster for Mercedes Benz M152, M276. Verstappen, leading the race with team-mate Sergio Perez right up his exhaust was beginning to struggle with his rear tyre temperatures, whereas Checo's tyres seemed just fine. This is why we recommend engine oil changes every 5,000 to 7,500 miles, rather than the standard 15,000-mile mark. ML350 M276 Timing Faults - Repair options. LASU Cut Off Mark 2022/2023 (JAMB & Departmental) for all …. Engine 2768: Up to engine 2768xx 30 001281. The timing could not have been more awkward for Max Verstappen as his friend Nyck de Vries pulled the AlphaTauri off at Turn 6, putting the Formula 1 race in Baku under the safety car 10 laps in. I think that I can say that I've had the main troubles and they are timing chain and turbocharger wastegate linkages. In older versions of the M278 engine,. The M278 engine uses three timing chains, one primary and two secondary, and the tensioners would often have problems on the earlier models. Mercedes M278 Engine Guide – Auto Tire Solutions">Mercedes M278 Engine Guide – Auto Tire Solutions. It was I have owned a 2008 E350 for many years and loved it. 9) — 4JGDA5HB9CA056143 P054C — Cold Start "B" Camshaft Position Timing Over-Advanced Bank 2 P054A — Cold Start "B" Camshaft Position Timing Over-Advanced Bank 1 P0019-85 Extended Crank/Start Vehicle came in with check engine light on and extended crank. The Complete M276 Engine thread. pdf">Mercedes Benz M276 Engine Service and Repair Manual. In this case, simply add a 17 mm strip of tape past the 40 degree mark. The M278 is a 4. Call : 770-837-3888 https://mbtofatlanta. 1) M278 Timing Chain & Tensioners By far the biggest issue with early versions of the M278 were the timing chain and tensioners. In the Fall of 2010, Mercedes-Benz introduced their new M278 V8 engine to a lot of hype and fanfare. Coolant or oil may leak from a drain hole situated on the front valve timing cover near the thermostat piping. Oil leakage is another thing to look out for. Akwa Ibom State University of Technology, Uyo (AKUTECH) 180. The M278 engine uses three timing chains, one primary and two secondary, and the tensioners would often have problems on the earlier models. The most common fault codes related to this are P0059, P0060, P0064, P0272, P0275, and P0276. com Show more Show more Hide chat replay MB M157/M278 how to setup the timing part 2. Engine Timing Tool Set Compatible with Mercedes Benz M157/M276/ M278. One problem with the M278 that is not always. Buy Engine Timing Tool Set Compatible with Mercedes Benz M157/M276/ M278 with T100 and Injector Removal Puller Tool: (cam phaser) bolt. I think that I can say that I've had the main troubles and they are timing chain and turbocharger wastegate linkages. LASUSTECH Departmental Cut. Clear faults, engine started quicker but P001985 returned immediately. The M278 is based on a 4. 1) M278 Timing Chain & Tensioners. The bore size, stroke and bore spacing are identical. Learn how to fix timing chain marks on Mercedes 278 Engine. Kommen Tools Camshaft Adjuster for Mercedes Benz M152, M276, M278 Engine Brand: Kommen Tools 3 ratings $9999 Used to mark pulse wheel on removed camshaft. Benz Timing Tool Set (M276) by JTC 4214. Choosing a higher performance cam profile raises the engines power accordingly. Some M278 engines respond better to more aggressive cam durations so set your engine up on a rolling road. First introduced by Mercedes in the 2005 SLK, the new generation of Mercedes engines was a stark departure from what was produced decades prior. 7 tt) I have an engine rattle. one for each camshaft and one for the crank the lower chain has two yellow marks The sprockets have also yellow marks, if they are faded they have a punched in dot. M278 The basic M278 has a displacement of 4,663 cc (4. The M278 has new pistons with an increased compression height of 2mm. Vehicle came in with check engine light on and extended crank. Engine Timing Tool Set Compatible with Mercedes Benz M157. Applications: 2007 – 2012 GL 450 2007 – 2013 S 450 2007 – 2011 ML 450 Mercedes M273 E55: The E55 is the 5. Mercedes M278 Engine Guide – Auto Tire Solutions. 1) M278 Timing Chain & Tensioners. 6 cu in) with a bore and stroke of 92. 6 cu in) with a bore and stroke of 92. That was an issue with the M276 and M157, too, which are M278 offshoots. In older versions of the M278 engine, tensioners frequently failed. 1) M278 Timing Chain & Tensioners. GLE500 2016 intermittent knocking on idle. The M273 series was released in 2005. Altering your M278 cam will make a dramatic difference to the engine engines power. Do you or your Independent mechanic have DAS Xentry ?. 7 Liter bi-turbo V8 engine designed for Mercedes-Benz vehicles. The engine generation is closely related to the eight-cylinder M 278 , even though they have 90 ° cylinder bank angle. 6L Biturbo Reliability">Mercedes M278 Engine Guide. 10 Timing chain drive, toothed belt drive 11-12-2015. Ambrose Alli University (AAU),. How to Set the Timing Chain Marks on Mercedes 278 Engine. To loosen the camshaft center bolt, hold the engine from the crankshaft bolt. valve timing on 12 intake and 12 exhaust valves along with a new 2-stage timing chain arrangement. Dealer says let it progress and then come back. Discussion Starter · a moment ago. The Mercedes M157 is also prone to valve timing cover leak, also referred to as the timing case cover. one for each camshaft and one for the crank the lower chain has two yellow marks The sprockets have also yellow marks, if they are faded they have a punched in dot. The timing is correct after checking everything and did spin the engine manually for an hour just to get the the marking on chain with the sprockets at 40 degree but after turning on the engine I get a P0016 code and when I diagnostic with xentry It's telling me that ( compression joint on the camshaft has twisted and laser making must be in …. The new V8 is already since the end of 2010 CL-Class and S-Class used. Output is 320 kW (429 bhp; 435 PS) at 5,250 rpm with 700 Nm (516 lb-ft) of torque at 1,800-3,500 rpm for S-Class, CL-Class, SL-Class, and GL-Class models. Competition camshafts, raise the top end. 6L Engine Specs, Problems & …. The factory codes are typically 1200 and 1208. Got message on the morning to add 1QT of oil (maybe because of the service they did), added the oil, and headed to work, this Tuesday driving about 40-50mls/h the engine shut off itself after 30min of driving, and had the car towed to the same MB dealership. Applicable: BENZ M157, M276, M278 engine MM number: 276589014000 100% Original Made By JTC Best Quality,Fastest Shipping,Local Service Support › See more product details Total price:. i have 2016 gle500, M278 v8 with only 25,000kms. 1) M278 Timing Chain & Tensioners. Mercedes M157, M276, & M278 Rattle Noise Upon Starting Many of the newer generation Mercedes engines (namely the M157 AMG engine, M276 V6 engine, & the M278 V8 engine) develop an obnoxious rattle sound upon start up. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. This is a common symptom which is already fairly well documented on the internet. 9 mm and a piston stroke of 86 mm. someone help me with timing diagram Reply asimor Location Offline Senior Member. There were also some issues with premature valve guide wear. This is why we recommend engine oil changes every 5,000 to 7,500 miles, rather than the standard 15,000-mile mark. Mercedes M273: Everything You Need To Know. Mercedes M273 5. 6-liter V8 direct-injected bi-turbo engine introduced in 2010. This would cause the engines to fall mechanically out of time, would produce cam and crank timing correlation codes and extremely rough running. The engine uses three timing chains—one primary and two secondary. Kommen Tools Camshaft Adjuster for Mercedes Benz M152, M276, M278 Engine Brand: Kommen Tools 3 ratings $9999 Used to mark pulse wheel on removed camshaft. The Lagos State Polytechnic Ikorodu (LASPOTECH) now called Lagos State University of Science and Technology (LASUSTECH) has fixed 160 as the cut-off mark. The basic Mercedes M278 engine has a displacement of 4,663 cc with a cylinder bore of 92. Altering your M278 cam will make a dramatic difference to the engine engines power. The Mercedes-Benz M273 engine family includes a 5. Some M278 engines respond better to more aggressive cam durations so set your engine up on a rolling road. This member of the new engine family, which also includes the M276 V6, replaced the previous M273 V8 engines under a. The M276 also includes direct injection with piezo-electrically controlled injectors for 2 to 3 sprays per intake stroke in normal operation. Camshaft, lifters and rocker arm check. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. 1) M278 Timing Chain & Tensioners By far the biggest issue with early versions of the M278 were the timing chain and tensioners. Buy Engine Timing Tool Set Compatible with Mercedes Benz M157/M276/ M278 with T100 and Injector. By far the biggest issue with early versions of the M278 were the timing chain and tensioners. Engine 157: Up to engine 1579xx 60 047752. The Mercedes-Benz M278 is a 4. Engine Timing Tool Set Compatible with Mercedes Benz …. Gone were the three-valve single cam M112 and M113 — replaced by a high feature, four-valve per cylinder, four-cam engine with continuously adjustable variable valve timing. All you need to know about tuning the Mercedes …. I have a W221 with the m278 engine (11 s500 - 4. The M273 family was released in 2005 and offered two displacement variations – the 4. It all started after the last service. 1 2 3 4 5 W205 M274 engine timming diagram ivannzowa Location Offline Banned Thanks Given: 394 Thanks Received: 317 (128 Posts) Posts: 1,107 Threads: 493 Joined: Jun 2013 1 01-28-2017, 07:55 PM hello,i have w205 with M274 the car lost timing results to misfire. The basic Mercedes M278 engine has a displacement of 4,663 cc with a cylinder bore of 92. Mercedes Benz M273 Engine Timing Chain Repair Manual. 9) — 4JGDA5HB9CA056143 P054C — Cold Start "B" Camshaft Position Timing Over. Download: MB M272 M273 Engine Timing Chain Manual. MB M276 Spark Plugs at 55K miles. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Thanks! Warmly, The Atlantic Motorcar Center Service Team. Our team of Service Specialists are here to help, for even the newest autos! (207) 882-9969. 10 things we learned from the 2023 F1 Azerbaijan Grand Prix. In older versions of the M278 engine, tensioners frequently failed. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. The sprockets have also yellow marks, if they are faded they have a punched in dot. Hi, my name is***** the M278 engine, there have been some problems with the timing chain tensioners causing a rattle on start up. P0016] BUT TIMING IS CORRECT. The Mercedes M157 is also prone to valve timing cover leak, also referred to as the timing case cover. The M278 is based on a 4. The M278’s timing chain and tensioners were the vehicle’s Achilles’ heel in its early iterations. Mercedes M157, M276, & M278 Rattle Noise Upon Starting Many of the newer generation Mercedes engines (namely the M157 AMG engine, M276 V6 engine, & the M278 V8 engine) develop an obnoxious rattle sound upon start up. 7-liter gasoline V8s based on M272 V6. Full Lists Of JAMB 2022 Cut. The Mercedes-Benz M278 is a 4. M278 Valve timing chain tensioner affected range. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminium/silicon low-friction cylinder liners. One of the adjuster was bad which is the passenger side which is very common so I changed along with check valves and tensioners. Multi-spark ignition creates up to 4 sparks. The timing is correct after checking everything and did spin the engine manually for an hour just to get the the marking on chain with the sprockets at 40 degree but after turning on the engine I get a P0016. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. W205 M274 engine timming diagram. I found this Mercedes bulletin in another forum, it has the serial number under m278. Output is 320 kW (429 bhp; 435 PS) at 5,250 rpm with 700 N⋅m (516 lb⋅ft) of torque at 1,800-3,500 rpm for S-Class, CL-Class, SL-Class, and GL-Class models. Altering your M278 cam will make a dramatic difference to the engine engines power. The rated output is 335 HP at 6,000 RPM with 339 lb-ft of torque at 2,700 – 5,000 RPM. Learn how to fix timing chain marks on Mercedes 278 Engine. i have 2016 gle500, M278 v8 with only 25,000kms. 1 2 3 4 5 W205 M274 engine timming diagram ivannzowa Location Offline Banned Thanks Given: 394 Thanks Received: 317 (128 Posts) Posts: 1,107 Threads: 493 Joined: Jun 2013 1 01-28-2017, 07:55 PM hello,i have w205 with M274 the car lost timing results to misfire. The basic M278 has a displacement of 4,663 cc (4. line up the crank mark from the driver side head with the middle sprocket at the rear of it. The M276 engine features an aluminum engine block with Nanoslide cylinder coating and dual overhead camshafts with independent variable valve timing on 12 intake and 12 exhaust valves and a new 2–stage timing chain arrangement. 0 mm stroke for a capacity of 4663 cc, the M152 and M157 AMG engines had 98. Marty is online now Continue Related Mercedes Questions I have owned a 2008 E350 for many years and loved it. Benz Timing Tool Set (M276) by JTC 4214 Visit the JTC Tools Store No reviews $16280 Special designed to align the camshaft timing angle for correct position. There is a timing chain for each bank. Cannot figure out where its coming from or what it might be. M273 engines were based on the identical M272 V6 introduced in 2004. This engine oil passage has a check valve installed. The engine timing and injectors and fuel pump also will make differences on the power gains you'll achieve. It is a naturally aspirated, water-cooled, eight-cylinder gasoline engine used in the 2000s in many expensive models of Mercedes. Reason for change Engine 276, engine 278, engine 157 Complaint: Engine rattling noise after engine start for several seconds Attachments File Designation Rasselgeräusch nach Motorstart. line up the crank mark from the. Knowing, not just “doing”, that’s the Atlantic Motorcar Center way of life. This is generally due to the timing case cover not being mounted properly. The timing chain and tensioners can suffer wear and there was an MB service notice to replace the oil supply check valves on the tensioners with a redesigned type. The engine uses three timing chains—one primary and two secondary. What i have done so far: replaced chain tensioner and installed check valve replaced the cam adjuster on intake new spark plugs oil changed. [2] In contrast to the port-injected M273, the M278. 7L M278) Jan 1, 2021 #1 Hi all. Mercedes Benz M272 M273 Engine Timing Chain Manual Download: 10. Fast road camshafts commonly raise the power through the rev range, you might lose a little low down torque but the top end will be better. Choosing a higher performance cam profile raises the engines power accordingly. one for each camshaft and one for the crank. The Mercedes-Benz M278 [1] is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines. The M278 engine uses. Benz Timing Tool Set (M276) by JTC 4214 Visit the JTC Tools Store No reviews $16280 Special designed to align the camshaft timing angle for correct position. Mercedes Benz M278 Engine Service and Repair Manual. check engine, check engine light, Mercedes, service, technical service bulletin, timing, timing chain, vvt. The purpose of this article is to make. Mercedes M157: Everything You Need To Know – Dust Runners ">Mercedes M157: Everything You Need To Know – Dust Runners. Junkyard Gem: 1980 Mercedes-Benz 300 TD A 1980 Mercedes-Benz W123 300TD station wagon with the naturally-aspirated diesel engine, found in a California wrecking yard. i ve had secondary chain tensioners replaced. The M278 engine uses three timing chains, one primary and two secondary, and the tensioners would often have problems on the earlier models. The basic M278 has a displacement of 4,663 cc (4. The upper timing chains have three yellow marks. MB M157/M278 how to setup the timing part 1. Buy Engine Timing Tool Set Compatible with Mercedes Benz M157/M276/ M278 with T100 and Injector Removal Puller Tool: (cam phaser) bolt. : 278 589 00 23 00 Application: Mercedes Benz M152, M276, M278 › See more product details Frequently bought together Total price: Add both to Cart. Make sure this fits by entering your model number. 7L Engine Specs, Problems & Reliability. One of the adjuster was bad which is the passenger side which is very common so I changed along with check valves and tensioners. Verified extended crank, checked faults. I have a W221 with the m278 engine (11 s500 - 4. Learn how to fix timing chain marks on Mercedes 278 Engine. 【ALIGNMENT】The engine timing tool is specially designed to align the camshaft timing angle for correct position. line up the crank mark from the driver side head with the middle sprocket at the rear of it. M278 The basic M278 has a displacement of 4,663 cc (4. 2012 Mercedes-Benz ML350 4Matic 3. I found this Mercedes bulletin in another forum, it has the serial number under m278. While the M278 engine had 92. 1) M278 Timing Chain & Tensioners. the lower chain has two yellow marks. Mercedes M278: Everything You Need To Know. Timing Marks Mercedes Benz M278 Engine. 2012 GLK350 engine rattle on cold start. 2012 Mercedes-Benz ML350 4Matic 3. 5 mm stroke for a capacity of 5461 cc. If you will use these tools, mark your camshafts everywhere so you can retime the engine if the engine jumps timing. That was an issue with the M276 and M157, too, which are M278 offshoots. By far the biggest issue with early versions of the M278. The timing is correct after checking everything and did spin the engine manually for an hour just to get the the marking on chain with the sprockets at 40 degree but after turning on the engine I get a P0016 code and. The basic M278 has a displacement of 4,663 cc (4. The management of Lagos state university of science and technology has approved the JAMB cut off mark 2023/2024 academic session for all courses offered in the institution. Early m278 had noisy start issues rectified by oil system upgraded parts. 7 Liter bi-turbo V8 engine designed for Mercedes-Benz vehicles. 6-liter V8 direct-injected bi-turbo engine introduced in 2010. Mercedes Chain Rattle – Diagnostic Network">Mercedes Chain Rattle – Diagnostic Network. According to the TSB for M278 timing chain tensioner replacement, I'm seeing the affected range is. For all engines, however, the cylinders were spaced at 106. This member of the new engine family, which also includes the M276 V6, replaced the previous M273 V8 engines under a hood of the popular E-Class, S-Class, and GL-Class models. Typical weak point on most MB's, bank 1 timing chain tensioner is weak on start-up so I intend to have both changed. Rattling noise after engine start for several seconds. The timing is correct after checking everything and did spin the engine manually for an hour just to get the the marking on chain with the sprockets at 40 degree but after turning on the engine I get a P0016 code and when I diagnostic with xentry It's telling me that ( compression joint on the camshaft has twisted and laser making must be in …. The Mercedes-Benz M278 [1] is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines. Mercedes M278: Everything You Need To Know – Dust Runners ">Mercedes M278: Everything You Need To Know – Dust Runners. Engine 278: Up to engine. Mercedes Benz M152, M276 ">Kommen Tools Camshaft Adjuster for Mercedes Benz M152, M276. M 157 M278 right chain tensio- 1 ner Engine 276. To check basic timing, look into the bores for the hall-effect sensors. Fast road camshafts commonly raise the. 1) M278 Timing Chain & Tensioners By far the biggest issue with early versions of the M278 were the timing chain and tensioners. How to Set the Timing Chain Marks on Mercedes 278 Engine?. The Mercedes-Benz M278 [1] is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines. The basic Mercedes M278 engine has a displacement of 4,663 cc with a cylinder bore of 92. Got message on the morning to add 1QT of oil (maybe because of the service they did), added the oil, and headed to work, this Tuesday driving about 40-50mls/h the engine shut off itself after 30min of driving, and had the car towed to the same MB dealership. The upper timing chains have three yellow marks. Mercedes M157, M276, & M278 Rattle Noise Upon Starting Many of the newer generation Mercedes engines (namely the M157 AMG engine, M276 V6 engine, & the M278 V8 engine) develop an obnoxious rattle sound upon start up. The M278’s timing chain and tensioners were the vehicle’s Achilles’ heel in its early iterations. What are the main issues that you encounter on the M278 Marty, Mercedes Technician 57,141 Satisfied Customers Bosch Certified Master Tech. While the M278 engine had 92. With long straights and sharp corners, the Baku City Circuit has the qualities that tends to make the Azerbaijan Grand Prix a hoot to watch. F1 TV Pro takes your Miami GP experience to a whole new level. Mercedes M278 Engine Guide. mp3 Rattling noise after engine start Cause: Secondary timing chains might produce a rattling sound during engine start up until the engine oil pressure builds up. Your Mercedes. The later model M278 engines did not have the problem. The noise is essentially chain or adjuster rattle, but the cause can be any combination of the following: poor oil pressure to the secondary chain tensioners upon start up, failed chain tensioners, failed camshaft adjusters, stretched (worn) timing chains and/or damaged timing chain guide rails. Rough Idling If the solenoid is not letting the appropriate amount of oil into the system, then too much or too little oil could cause the engine to idle roughly. The Mercedes-Benz M278 is a 4. com Show more Show more Hide chat replay MB. The cylinder block of M278 is made from lightweight aluminum material. 7L) Timing chain tensioners. If at standstill and I rev it, it does go away. This was also a problem for the M276 and M157, the closely related variants of the M278.