Mercedes-Benz M270 engine

At the beginning of 2011, Mercedes officially published the first photos of the new 1.6-liter internal combustion engine. This was done at the Shanghai Auto Show with the sole purpose of testing the attitude of potential customers towards the new W176 car. The debut of the M270, as the main working option instead of the M266, took place on the W246. The engine was equipped with a turbocharger and direct injection Blue Direct.

Review

The transversely mounted M270 engine is equipped with direct injection and a turbocharger. The motor is connected to a mechanical box with two clutches.

Structurally, the engine differs from analogues in a lightweight design - a compact BC is cast from aluminum under pressure. The cylinder head and crankshaft are also made using winged metal. The latter rotates either with the help of four counterweights or a balancer. Available in 1.6 liter or 2 liter versions. Both versions received compact, fast-acting camshaft adjusters.

ICE direct injection provides higher compression compared to conventional injection. Accordingly, the efficiency also increases. The pressure is provided by a pump that is capable of delivering 200 bar. This is a single-plunger mechanism with an integrated flow sensor. Fuel is supplied through high-pressure lines to nozzles that carry out direct injection into the chamber. Piezo effect injector, equipped with atomizers with a large number of holes.

BU engine of a new type. The circuit is entirely connected with the control of the KM value, it is integrated with the gearbox and other important components of the car. Efficiency is increased due to the lightness of the engine compared to four-cylinder units of this class and low friction losses.

Modifications

M270 is divided into the following variants:

• 6 l DE16 AL red, 102-122 hp With.;
• 6 l DE16 AL, 156 hp. With.;
• 2 l DE20 AL, 156-218 hp With.

All power plants are four-cylinder, equipped with balancers, an oil pump and a pump. The motors use the latest Camtronic system with 2-level variable timing and Blue Direct system. A useful innovation was the use of multi-spark ignition.

The nozzles of this engine allow you to spray fuel in a special, best way. This reduces the time and quality of combustion of gasoline. In addition, the efficient combustion of fuel assemblies is facilitated by the use of multi-spark ignition, with a rate of 4 discharges per millisecond.

A 160/B 160	CLA 180/CLA 180 BlueEFFICIENCY Edition	A 180/A 180 BlueEFFICIENCY	GLA180
Working volume	1595 cm 3
Power	75 kW (102 hp) at 4500-6000 rpm	90 kW (122 HP) at 5000 rpm
Torque	180 Nm at 1200-3500 rpm	200 Nm at 1250-4000 rpm
What cars was installed on	W176 / 246	C117	W176	X156

CLA 200	GLA200	A 200	B 200
Working volume	1595 cm 3
Power	115 kW (156 HP) at 5000 rpm
Torque	250 Nm at 1250-4000 rpm
What cars did you install	C117	X156	W176	W246

B200 Natural Gas Drive	A 220 4MATIC/B 220 4MATIC	CLA 250/GLA 250/A 250/B 250	CLA 250 Sport/A 250 Sport
Working volume	1991 cm 3
Power	115 kW (156 HP) at 5000 rpm	135 kW (184 HP) at 5000 rpm	155 kW (211 HP) at 5500 rpm	160 kW (218 hp) at 5500 rpm
Torque	270 Nm at 1250-4000 rpm	300 Nm at 1250-4000 rpm	350 Nm at 1200-4000 rpm
What cars did you install	W246	W176 / W246	C117/X156/W176/W246	C117/W176

Oleg	Mileage 145000, began to howl a little, at idle - to chirp. In this regard, questions arise. 1. What is the resource of the m270 engine, how long can it go with careful handling and high-quality maintenance? 2. What is the resource of the timing chain?
MacLeod	You need a specialized MB scanner to find out the chain stretch. Tk normal will not show this. Either the hydraulics or the chain chirped. The chain resource is on average 150-200tkm, depending on the frequency of oil change
Consta	Can you explain to the unintelligent the connection between chain stretch and oil change intervals? ...
Anatoly	the connection is direct - the worse the quality of the oil (less often maintenance), the faster the wear.
Dynasty	on a 270 engine? 200 thousand resource? )) everyone would like that
PanIvan	An acquaintance on the a180 w176 drove 190 and, apart from replacing the belt with rollers, did not repair anything. To the ear, the engine whispers.
Igol	On the M270 engine, you need to change the oil no later than 10.000 thousand km when operating in Russian conditions. I did not come up with this. When I bought a new car, a memo from MB RUS was attached to the book.
MacLeod	At 11tkm 200 hours after the end of the warranty was at the service (not a dealer) when replacing, the oil is black, the filter cartridge is black, it almost broke it. After that, I do not run more than 10tkm 250mph. I think the filter is too small for this amount of oil.
KKK567	Instead of creating a separate topic, I'll write here. The pump died at 147000. While it is changing, the question is, does it make sense to replace antifreeze with carboxylate red? Was green. And then the channels are small in the engine, near the nozzles ...
confused	During the next MOT at 65 km, a small crack was found on the belt, the master advised to replace it with the next MOT. I began to find out the cost of these parts. It turned out that it was necessary to change not only the belt with the tensioner, the second roller, but also the pump! the whole thing costs 000k, plus they say that the engine still needs to be lowered ... that's another 20k ... Maybe someone has already done something like that? Is there no other solution? too expensive to replace the strap and roller)
Brusik	Why a pump?
confused	she goes along with the video, without her nothing ... supposedly ..
tweaker	And what, the tensioner roller is not cocked? Why change it? Usually the rollers die by the second or third belt replacement (150-200tyk) or a Mercedes from another metal?
Important	how do i change all videos? if, according to the original catalogs, the pump is assembled with a roller. So, you just need to change the belt and that's it? or something else?
Zanza	Usually, if the rollers do not make noise, there is no jamming during rotation, and it is also possible to cock the tensioner, then only the belt changes, but I think it’s worth making sure by checking the belt replacement card for a specific car.
Aleks418	no need to touch the pump and that's it)))) And the person was told that the assembly is changing with pomp and that the engine needs to be lowered, and the tensioner with the roller should also be changed. I didn’t come across this, but it became very interesting, since getting on such adventures to change the belt is generally .... I imagined that you change the belt and everything here without any problems, the rest, in fact, you already listen, feel, and change it there if necessary!))) And then the author caught up with the horror))) Therefore, I would like to know the procedure from someone who has come across, and not assumptions and reasoning like there on other machines and in general.
good time	I was interested in the same question last week, started whistling the alternator belt in wet weather, annoying. So, the officials voiced the belt + roller + tensioner (1.408 rubles + 2.625 rubles + 7.265 rubles) and the work is another 15,7 tr. Minus 15% discount on spare parts and 10% on labor. At the same time, to the question, “what for a tensioner with a run of 38 t.km?”, The answer was “and this is so, just in case, to the maximum.” There was no talk of any pump, and without this it is prohibitively expensive for a penny, in fact, work.
MacLeod	If someone has a whistling belt, then check the pulley genes, if there are traces of grease on it, then take off the armor, look at the front crankshaft oil seal, I have a drip. Because of this, the belt slips. The rollers are most likely supplied to the factory by Gates and the price for them is 3500 for the tensioner and 1500 for the roller, this is the price of my region. Conti 570 belt. The pump is quite affordable and there is no point in changing it. The pulley bearing whistles, then you can think about replacing it if the bearing is not pressed out.