Hi Guys this is my first thread as i picked up used 2015 e300 recently. I have some questions about it.

1. its a V6-GASOLINE ENGINE M276 how reliable is it? I picked it up from a well known dealership in vancouver. It has 141000 km and got it for 20k with amg appearance package.
2. what is the horsepower on it? i have googled everywhere it all i find is 2015 e300 electric which is not my car. My car is gas engine.
3. should i put in premium gas?
4. its has ECO button should i keep it on all the time and does it really save gas?
5. I still can purchase extended warranty. 50% people say dont as its a reliable car other say do it what is your opinion?
6. not sure what type of engine it is? does it have turbo? as i m told stay away from turbo engines

Thanks guys

 

No turbos....its a naturally aspirated 3.5 litre V6. All Mercedes-Benz gasoline cars require Premium Unleaded Gas. At a minimum, you should use premium 91 octane gasoline or higher.

 

1. The M276 is very reliable. Aside from the leaking timing chain covers (due to manufacturing), these are very good engines.
2. Around 300
3. Yes.
4. In my experience, it does not save gas and the auto start/stop is hard on both the starter and the battery.
5. Depends on your mechanical ability. In my case, warranties are a waste of money.
6. It's an NA 3.5L V6, no snails.

 

With your VIN number, you can check the vehicle datacard, and verify your engine serial number. Be certain your engine number is above the ones that required oil check valve, and/or newer chain tensioners. It should for a 2015, but you never know.

I have the E350, and to me, it runs very well (enough to enjoy, and not too much to be stupid)

The M276/M278 engines have been reported with noise from the timing covers due to the issue above, and/or due to problem with the camshaft adjusters (that problem is common with M276/M278), so be diligent with your oil changes:

• proper specifications, timely as specified or shorter intervals as recommended by other members in the forum
• proper oil filter, MB would be best
• and monitor your camshaft solenoids connectors for oil leaks from the sensor themselves into the wiring (https://mbworld.org/forums/e-class-w...ml#post8054959). If oil manages to get to the ECU, it means $$$

 

What is your location and what are your repair skills?
I always advise to get warranty on used MB when you don't have experience with the brand, or you plan to take it to shops.
There is long term wisdom "You won't find too many things in this World who can become very expensive faster than cheap Mercedes -Benz"
Especially in USA, dealers will take more than value of the car just for basic repairs.

 

Congratulations on your fine purchase. These cars a very predictable. Buying a warranty coverage may not be so useful if you know the service history besides all the exclusions. I would use that money towards any maintenance or repairs needed.


- Listen for loud engine ratles at startup. This is a call for timing components service.

- I would concentrate on Tranny ATF and differential service before neglect had a chance to cause pricey damage.

- You may want to get an OBD scanner, it will come in handy for any CEL faults.

 

Thanks @ALFAitalia @Fliplegend @juanmor40 @kajtek1 @CaliBenzDriver for your replies.

Im not a very techy guy. Just purchased the car because i always wanted this one.

how do i keep track of leaking timing chain covers? What should i look out for ?
Im coming from a Honda and found this engine to be louder. I asked the dealership where i bought this from and they said its normal.
Do i get camshaft solenoids connectors inspected every time at service place for leaks?

@kajtek1 Im n Vancouver and yes im thinking of getting warranty for at least engine and transmission as my repair knowledge i limited. You guys are my support going forward

@CaliBenzDriver Thanks for congrats this is my first Merc i have had 3 BMW with no issues and hoping for the same on this one. I heard these cars are most reliable. I will keep my ears open for noises.

 

Congratulations! You've gotten good advice from these knowledgeable folks.

Now ... you need to post up a picture of your E class

 

Congrats on your car
I used to use ECO in my car but real benefit should be rather related to lowering rates of emissions of mass sales or filo sales of car manufacturers not personal fuel saving to me . I turn it off in the cars I have been driving .
Modern turbos are quite reliable but after an enthusiastic driving , you should let the engine idle a few seconds before turning it off because turbo blades need oil and turbo revs more than 258689477 (exaggerating but must be 100 K revs per minute ) ,not to mention enormous hear that those turbos are exposed to .
As neatly put thanks to our forum members , your engine is naturally aspirated ,but even if it was a turbo I would rather worry about other things for it

 

even though you've already bought it, you could do worse than bringing it to a reputable independent Mercedes shop and asking them to do a 'post pre-purchase-inspection' aka PPI. probably cost $100 or so for the short version, and 300-500 for a really comprehensive version. they should find every little thing you never would think of and detail it. for sure a Mercedes is a higher maintenance vehicle than a Honda or whatever, and deferred maintenance eventually adds up to deferred expenses if you want to keep it.

 

Each time I take my MB to a dealer (that doesn't happen very often) they do "safety inspection" for free and without asking for permission.
Than they gladly present me with $5000-6000 estimate to correct the things they think need attention. I always reinspect the finding and concluded that lot of the issues are written on estimate without looking at the car.
Dealers have service records and at certain mileage will advise you to replace certain parts, regardless their condition. Even if the part is new, installed outside the dealer.

 

this is my car guys. loving the drive of it. 360 cam is actually useful. not sure how the lane departure works even though in the menu its on.

 

Lane departure vibrates the steering wheel if it thinks you are drifting out of your lane

 

If you have not noticed the vibration in the steering wheel that LCG just mentioned, it means someone turned the "lane departure" off. You may need to activate it in the cluster yourself, and confirm it is working. Not too difficult, just let the car drift a bit over the highway lane and the steering wheel seems to vibrate/wiggle to call your attention.

The first time I drove one with it (sister's W166), I thought something was off until I realized the car had the feature.

 

Lane assistance is pretty erratic on W212 . At least on my 2014 model. It will not work with strong sun exposure, will not read older, faded lanes.
It will work annoying on merging lanes though.

 

Doesn't the '15 and '16 have the more advanced lane keep that brakes the opposite front wheel as well? I don't remember which year it changed,

 

I think that was the option thru most of the years.
When my 2014 has collision warning, who will actually boost the brakes if I underestimate the need, it was also available with collision assistance plus, if I remember it right, who would brake the car without driver input.
Tesla is famous for having those systems highly developed and watching couple of videos on youtube- pretty darn impressive.
But it is still break-thru technology with some danger, so Tesla new competitor, $170k Lucid is not giving this technology much thought.

 

Turn off all the stupid nanny controls and pay attention to the road. Check Bank 1 cam cover for leaks, alternator sits directly underneath it and likes to collect all the oil. 276 is a clickity clackity DI engine, don't freak. Expect chain tensioners soon. Nice ride. Welcome.

 

It's a better than never option to me . In other cars ,I have read that it also brakes if the car thinks you are steering out of lane and fervently takes an action to steer the car back into correct trajectory . At least Mercedes-Benz doesn't behave like that. It could be a life saver but it is annoying when you drive the car properly

 

thanks guys for all your inputs. im absolutely enjoying the ride. is it normal for the car to have a little push when it changes gear from 2 to 3. all other gears are smooth. just 2 to 3 some times i get this small jerk. may be im over thinking. this happens when usually on eco mode. in sports it seems fine.

 

I think E mode shifts too soon in the lower gears in an effort to keep the RPMs really low.

 

You can also try the transmission reset procedure to have it learn your driving habit, I also believe over time it learns on it's own, but that can take awhile. It's here on the forum somewhere, I apologize for not remembering it exactly enough to post for you.

 

https://www.mercedesmedic.com/reset-...-instructions/


You can also disconnect the batteries for @10minutes, and all your computers will be reset.

If the rough downshift, or jerk persists, you can always lift the car and check the mount for the transmission. I once was having some weird shifting, and because I thought it was due for transmission service I took it to the dealer. It came back with no service required yet (another 20K miles to wait), but they change the tranny mount. The car shifted like brand new, and very solid on the road.

 

Pierre, my '14 has this. It works well to magically save the day once a while to mitigate impacts.

Steering, brakes, camera and radars are combined through a separate CAN channel (I recall S1...?) to eliminate or reduce impacts.

This is where the German software functionalities truly shine. They had gone overboard with all the SRS airbags and now are proactively acting ahead of crash scenes.

Based on a collection of sensors, the car proactively steers away from troubles or stops. I have been impressed by the results in a couple occasions: lane invasion, rear-end colision and red light emergency stop. It's a welcome relief with the abondance of substance junkies in California road ways.
Each time this heavy car literally saved itself. The junky that purposely read-ended me got more than he bargained for... hardly a scratch on my bumper but he got a good concussion.
Note to self: always keep some distance between cars when stopped so W212 can use the gap ahead to decelerate rear end-colisions.

Front seats are involved in impacts reduction. They are actuated at high speed one way or the other... fix the "solderless pins" in your [seat + radar pucks] modules!

 

Can you take a picture of under the hood?

E300 is a 4 cylinder turbo, idk why all these guys above are saying that you have a V6, if your car has E300 badging i'm 99.99% sure that you have a 4cylinder turbo. it still takes premium tho