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1,384 listings
    • 100,568 miles
    • No accidents, 2 owners, personal use
    • 21 City / 29 Hwy MPG
    • Huntington Auto Mall (91 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
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    Located in Huntington Station, NY / 91 miles away from Westerly, RI

    LIKE NEW CONDITION. PREMIUM LEATHER SEAT. TECHNOLOGY PACKAGE. MOON ROOF. COLD WEATHER PACKAGE. PREMIUM SOUND SYSTEM AND MUCH MORE!|WE WORK WITH ALL TY...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JB2EB021563
    Stock: 021563
    Certified Pre-Owned: No
    Listed since: 04-16-2025

    • 108,965 miles
    • No accidents, 2 owners, personal use
    • 7 Seats, 19 City / 26 Hwy MPG
    • Litchfield Hills Motor Cars (70 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Watertown, CT / 70 miles away from Westerly, RI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/26 Highway)

    Listing Information:

    VIN: WDDHH8JBXEA906223
    Stock: L2067
    Certified Pre-Owned: No
    Listed since: 07-05-2025

    • 148,705 miles
    • No accidents, 2 owners, personal use
    • 21 City / 29 Hwy MPG
    • Michael & Sons Auto Sales (157 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Toms River, NJ / 157 miles away from Westerly, RI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JB1EA898616
    Stock: 9332
    Certified Pre-Owned: No
    Listed since: 07-30-2025

  • New Listing
    • 71,569 miles
    • No accidents, 3 owners, personal use
    • 21 City / 30 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from CA to RI*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Upgraded Headlights
    Close

    Located in Burbank, CA / 2,557 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/30 Highway)

    Listing Information:

    VIN: WDDHF5KBXEA903115
    Stock: 27527271
    Certified Pre-Owned: No

  • New Listing
    • 71,492 miles
    • No accidents, 3 owners, personal use
    • 6cyl automatic
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Dallas, TX / 1,492 miles away from Westerly, RI

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    23 Combined MPG (20 City/28 Highway)

    Listing Information:

    VIN: WDDKJ5KB1EF283455
    Stock: 2003816844
    Certified Pre-Owned: No
    Listed since: 06-11-2025

  • New Listing
    • 74,935 miles
    • No accidents, 1 owner, personal use
    • 6cyl automatic
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Oklahoma City, OK / 1,445 miles away from Westerly, RI

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    23 Combined MPG (20 City/28 Highway)

    Listing Information:

    VIN: WDDKJ5KB7EF247897
    Stock: 2004027984
    Certified Pre-Owned: No
    Listed since: 09-03-2025

  • New Listing
    • 72,622 miles
    • No accidents, 2 owners, personal use only
    • 6cyl automatic
    • CarMax (In-stock online)
    • Transfer available from LA to RI*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Baton Rouge, LA / 1,314 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    23 Combined MPG (20 City/28 Highway)

    Listing Information:

    VIN: WDDKJ5KB6EF278056
    Stock: 25254383
    Certified Pre-Owned: No

    • 73,681 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 21 City / 29 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from IA to RI*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Urbandale, IA / 1,134 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JB9EB010172
    Stock: 27105687
    Certified Pre-Owned: No

    • 132,142 miles
    • No accidents, 2 owners, personal use
    • 21 City / 29 Hwy MPG
    • Brooklyn Motor Sports Inc (31 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Brooklyn, CT / 31 miles away from Westerly, RI

    ***Vehicle comes with a 4 Month 4000 Mile Power Train Warranty***This vehicle has been serviced and has a valid CT emissions. We are offering it as a ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JB5EB010718
    Stock: P5544
    Certified Pre-Owned: No
    Listed since: 07-09-2025

    • 67,227 miles
    • No accidents, 2 owners, personal use
    • 6cyl automatic
    • CarMax (In-stock online)
    • Transfer available from TX to RI*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Houston, TX / 1,540 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    23 Combined MPG (20 City/28 Highway)

    Listing Information:

    VIN: WDDKJ5KB3EF281027
    Stock: 27559713
    Certified Pre-Owned: No

    • 64,475 miles
    • No accidents, 3 owners, personal use only
    • 21 City / 29 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from NM to RI*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Albuquerque, NM / 1,921 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JB3EA984168
    Stock: 26442655
    Certified Pre-Owned: No

    • 174,778 miles
    • No accidents, 3 owners, personal use only
    • 7 Seats, 16 City / 21 Hwy MPG
    • Paragon Motors of Wrightstown LLC (174 mi away)
    • AWD/4WD
    • Sunroof/Moonroof
    • Third-row seating
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Wrightstown, NJ / 174 miles away from Westerly, RI

    Onsite financingAll types of credit accepted. Instant approvals Visit us at www.paragonmotors22.com, Vehicle Runs Well, Smooth ride, Regularly main...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/21 Highway)

    Listing Information:

    VIN: WDBUH87X88B321763
    Stock: P0000013
    Certified Pre-Owned: No
    Listed since: 05-27-2025

  • Price Drop
    • 47,528 miles
    • No accidents, 3 owners, personal use
    • 6cyl automatic
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 1,105 miles away from Westerly, RI

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    23 Combined MPG (20 City/28 Highway)

    Listing Information:

    VIN: WDDKJ5KB3EF239022
    Stock: 2004002112
    Certified Pre-Owned: No
    Listed since: 08-25-2025

    • 47,146 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 21 City / 29 Hwy MPG
    • Sega Auto Sales (82 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Malden, MA / 82 miles away from Westerly, RI

    The 2014 Mercedes-Benz E-Class E 350 4MATIC Sedan 4D is a luxury sedan powered by a 3.5L V6 engine with 302 horsepower and all-wheel drive. It combine...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/29 Highway)

    Listing Information:

    VIN: WDDHF8JBXEA870748
    Stock: MA870748
    Certified Pre-Owned: No
    Listed since: 08-01-2024

  • New Listing
    • 46,441 miles
    • No accidents, 1 owner, personal use
    • 21 City / 30 Hwy MPG
    • CarMax (In-stock online)
    • Transfer available from TX to RI*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    • Blind Spot Monitorin...
    Close

    Located in Richmond, TX / 1,566 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    24 Combined MPG (21 City/30 Highway)

    Listing Information:

    VIN: WDDHF5KB5EA815671
    Stock: 27352941
    Certified Pre-Owned: No

    • 140,016 miles
    • No accidents, 4 owners, personal use
    • 7 Seats, 19 City / 26 Hwy MPG
    • Roberti Automotive (120 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Kingston, NY / 120 miles away from Westerly, RI

    Roberti Automotive is your #1 source for buying a quality pre-owned vehicle. With years of experience serving the area, we are dedicated in offering h...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/26 Highway)

    Listing Information:

    VIN: WDDHH8JB8EB035607
    Stock: 7497 AFC
    Certified Pre-Owned: No
    Listed since: 08-30-2025

    • 44,794 miles
    • No accidents, 3 owners, personal use only
    • 6cyl automatic
    • Carvana (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Upgraded Headlights
    Close

    Located in Phoenix, AZ / 2,252 miles away from Westerly, RI

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    22 Combined MPG (19 City/28 Highway)

    Listing Information:

    VIN: WDDKK5KF8EF276910
    Stock: 2003244644
    Certified Pre-Owned: No
    Listed since: 11-13-2024

  • Price Drop
    • 39,923 miles
    • No accidents, 1 owner, personal use only
    • 17 City / 26 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Columbus, OH / 595 miles away from Westerly, RI

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    20 Combined MPG (17 City/26 Highway)

    Listing Information:

    VIN: WDDHF9BB6EA971032
    Stock: 2003973466
    Certified Pre-Owned: No
    Listed since: 08-16-2025

    • 70,764 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 7 Seats, 19 City / 26 Hwy MPG
    • Ideal Automotive Sales of Bensonhurst (126 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Bensonhurst, NY / 126 miles away from Westerly, RI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    21 Combined MPG (19 City/26 Highway)

    Listing Information:

    VIN: WDDHH8JB8EA897280
    Stock: 60268
    Certified Pre-Owned: No
    Listed since: 06-20-2025

  • New Listing
    • 42,918 miles
    • No accidents, 3 owners, personal use
    • 6cyl automatic
    • CarMax (In-stock online)
    • Transfer available from NC to RI*
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Upgraded Headlights
    Close

    Located in Fayetteville, NC / 582 miles away from Westerly, RI

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    22 Combined MPG (19 City/28 Highway)

    Listing Information:

    VIN: WDDKK5KF9EF248212
    Stock: 27554153
    Certified Pre-Owned: No

    • 85,582 miles
    • No accidents, 5 owners, personal use only
    • 16 City / 23 Hwy MPG
    • Choice Auto Center (63 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Shrewsbury, MA / 63 miles away from Westerly, RI

    FULLY LOADED! ADULT OWNED & MAINTAINED! UNMODIFIED EXAMPLE! AMG POWER! Please visit Choiceautocenter.com for all photos. WE TAKE TRADES & WE BUY CARS!...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (16 City/23 Highway)

    Listing Information:

    VIN: WDDHF7GB8EA926008
    Stock: C5513
    Certified Pre-Owned: No
    Listed since: 08-11-2025

Showing 316 - 336 out of 1,384 listings

Consumer Reviews for the Mercedes-Benz E-Class

Read recent reviews for the Mercedes-Benz E-Class
Overall Consumer Rating
4.1 out of 5 stars74 Reviews
Write a vehicle reviewSee all 74 reviews
  • 5 star
    (64%)
  • 4 star
    (15%)
  • 3 star
    (4%)
  • 2 star
    (15%)
  • 1 star
    (3%)
4 out of 5 stars

Love the car but...

prrs, 03/11/2017
2011 Mercedes-Benz E-Class E350 BlueTEC 4dr Sedan (3.0L 6cyl Turbodiesel 7A)
I purchased a 2011 E350 Bluetec with 80k miles. I did some research before purchasing and liked how the Diesel engines seem to take on lots of miles with out too many issues. I knew, however, that there were some issues and made a budget on how much I wanted to spend for the car and how much I expected to pay in the potential issues. That was probably the best thing I did. The Diesel … engine for this year had two main issues that I came across in my initial search. The rear main main seal leaks as well as the seals or gasket on the oil cooler. Unfortunately for me, those were the first two things I had to replace... it was not unexpected but it would have been nice to have left the money in my bank account. The parts were relatively inexpensive but the labor cost was... well let's just say the mechanic I took it to was more than happy to do the work. I ended up spending about $2800 but that is far less than what it would have cost had I taken it to the MB dealership. That issue aside, the car is solid and drives extremely well. It's not a sports car but it is as fast as I need it to be. I drive primarily on the highway so 0 to 60 is not very important. I currently am averaging about 34 mpg. If highway traffic is light, I can get as much as 38 to 39 mpg. Heavy stop and go highway traffic and I am getting about 25 to 27 mpg. My work commute is over an hour so the time I leave from home or work does affect my mpg. Road noise is almost non existent... if traffic is light, I set the cruise control on 75 mph and just zone out to the road ahead. The day Mercedes sells an autonomous driving car will be the day I fall a sleep in the back seat. My wife drives a 2006 Lexus GX470 and it's not as quiet as the Mercedes. That being said, The interior is comfortable but it's not as comfortable as the Lexus GX470. I test drove the 2012 version of this car with the "real" leather seats and I could swear that the seats feel different (i.e. more comfortable) but I chose this one with the "fake" leather because of the price. The layout of the interior is good. My only issue is that the air condition controls feel too low in where it was positioned (a personal preference) and the cruise control seems out of place. I initially thought I would not like the position of the gear shift but after a while it did not bother me at all; I also thought that the knob in the center console would be annoying to use for the phone, radio, navigation but to the contrary I like it more than a touch screen. I really like this car and have been quite satisfied with almost all of it's features. It is not my first luxury car to own (it's my 4th) but is the first Mercedes I have owned. I will add, though, that maintenance is expensive. In fact, unless you can afford a good trustworthy mechanic, I would recommend you become a weekend technician. This means doing your own fluid changes (particularly the oil), minor engine repair and maintenance. My father is a retired Diesel mechanic so there is some advantage for me in owning this car but there are some things I just do not have the time for. Like the repairs I mentioned earlier. I left the car at the shop for 3 days on those two repairs. Funny thing is, I know how to do the job but I am not a certified technician that does stuff like that on a daily basis. If i can't do it myself over a weekend, then I have to go my mechanic... or I should say, my dad's friend who runs his own repair shop. Update: 19Sep2017- Still love the car... but still am going with what I previously stated. It is not cheap to maintain. Even as a DIYer. I change the oil every 6,000 miles rather than 10,000 using full synthetic but after some research on the Mercedes Bluetec engines, I use 10w50 or 10w60 oil in the hotter seasons. 0w40 or 10w30 in the colder season. Texas is generally hot so I primarily use the heavier weight oil. I read a Mercedes technicians blog who indicated the engines run hotter than normal despite what the dealership may say. Using only the recommended oil at the recommended oil interval change may actually cause damage to the engine causing excessive build up of oil sludge. If it's under warranty... dealership will fix... but if there is no warranty, you either have a giant brick or you fix it yourself (or your very happy mechanic). Either way, preventative maintenance goes a long way. Update: 9/23/19 Car still runs well. Stopped switching oil weights and have since stuck with the MB 229.52 recommended motor oils. The reason... soot really accumulated on the heavier oils. I replaced the EGR Valve because of it but in hindsight I may not have needed to. There is a cleaning process I go through on the intake and the DPF to avoid excessive soot and carbon. I do it before I change the oil. I’ve also installed an oil separator (oil catch can), which seems to work alright. I know it’s doing something cause I get better highway mpg (averaging 37 vs 34). Otherwise car runs well... I’m over 172,000 miles.
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