Skip the auto shop - Our mechanics make house calls

A Buyer’s Guide to the 2012 Mercedes Benz S350 BlueTec

mercedes benze s350 bluetec 2012

The 2012 Mercedes Benz S350 BlueTec brings diesel to the S-Class line in an extravagant way. With exceptional luxury, comfort and performance, you’ll have to schedule a test drive just to experience it for yourself. Once you do, you might be hard pressed to walk away to any other clean diesel option available.

Key Features

In addition to host of standard features available on this model, some of the more notable ones include Attention Assist which keeps an eye on the driver’s alertness, Torque Vectoring Brake, which adjusts the braking on the rear wheels when cornering, and the 600-watt surround sound Harman/Kardon stereo system with 14 speakers. There are also numerous Assistance Systems features available for add-on as well.

Changes for 2012

2012 is the first year for the 2012 Mercedes Benz S350 BlueTec, which introduces a diesel V6 engine that delivers 240 horsepower and 455 lb-ft of torque for a powerful punch throughout the driving experience.

What We Like

There’s no denying that the 2012 Mercedes Benz S350 BlueTec offers a level of prestige for any driver, but the rich interior and nimble performance make this car a dream to drive as well. The 4MATIC all-wheel drive also improves the acceleration and fuel economy at a better price than some of the other S-Class offerings for a complete luxury experience.

What Concerns Us

Given all the benefits of the 2012 Mercedes Benz S350 BlueTec, there is a bit to be desired with the braking, which requires 181 feet to reach full stop from 70 mph. The steering is also a bit lax, as it feels as if direction changes are a bit sluggish due to understeering. You’ll likely want to avoid the all-season tires as well, as they don’t add much to the already lacking grip.

Available Models

In the S350 BlueTec you will find:

  • 3.0-Liter Diesel V6
  • Horsepower: 240 @ 3,600 rpm
  • Torque: 455 @ 1,600-2,400 rpm
  • City/Highway Fuel Economy: 21/31 mpg

Major Recalls

There have been no major recalls issued for this vehicle.

Common Issues

There are only two complaints that have been made about the 2012 Mercedes Benz S350 BlueTec. The first complaint was made at around 50,000 miles; at which point the charge air hose going into the throttle actuator had to be replaced due to being torn. The second complaint involved the radiator grill breaking when an owner closed the hood on the vehicle.

mercedes benze s350 bluetec 2012 interior

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


Post a question and get free advice from our certified mechanics.


More related articles

Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable voltage to be produced from the throttle position...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...

Related questions

Q: Looking to buy 07 Audi S8 what should I look for besides the obvious?

Hello there, when buying a used car especially a rare car such as the 2007 Audi S8 care should be taken as repairs can be expensive. The only way to be aware of any potential issues is to have the...

Q: Coolant thermostat sensor 2008 c300 benz

Your temperature sensor is going to be located behind the engine on the driver side. You will need to remove the engine cover and you will need a torx bit (30) to remove the sensor. You can find the info...

Q: Brake lights

If you did not check the bulbs themselves before changing the brake light switch, you might want to start there. Blown brake light bulbs can actually cause the ESC light to come on, so make sure that the bulbs are...