C350s and MPG discrepancies in pre and post facelift
Thread Starter
Senior Member
Joined: Jan 2013
Posts: 344
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From: Berkley, MI
'09 C350
C350s and MPG discrepancies in pre and post facelift
So I noticed in a thread here one of the user's fuely tag in their signature and it said avg ~25 MPGs for a 2012. I got intrigued and went onto fuely and and checked the C350s they have listed.
It seems to be consisent with the fact that 2012 + cars are getting about 2-3 MPGs better fuel economy that the 08-09 cars. How is that even possible especially with the higher HP numbers the newer cars are posting.
On my 09 I average about 20-21 with a mix of city and hgwy. Is anyone else getting anything close to 25MPG mixed on a prefacelift car?
It seems to be consisent with the fact that 2012 + cars are getting about 2-3 MPGs better fuel economy that the 08-09 cars. How is that even possible especially with the higher HP numbers the newer cars are posting.
On my 09 I average about 20-21 with a mix of city and hgwy. Is anyone else getting anything close to 25MPG mixed on a prefacelift car?
MBWorld Fanatic!
Joined: Dec 2003
Posts: 1,283
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From: Central Coast, CA
2020 X7 xDrive40i, 2016 X3 sDrive28i
the 3.5 in 2012+ cars is the newer M276 engine, which not only produces more power but is also quite a bit more fuel efficient compared to the pre 2012 3.5
Even in my 2013 E350 4matic wagon, I can get close to 31 MPG on a long highway drive at 65mph. at a more reasonable 75mph I can get 29 to 30 MPG. That's on an all wheel drive wagon that weighs 2.25 tons. Very impressed with the new M276 engine.
Even in my 2013 E350 4matic wagon, I can get close to 31 MPG on a long highway drive at 65mph. at a more reasonable 75mph I can get 29 to 30 MPG. That's on an all wheel drive wagon that weighs 2.25 tons. Very impressed with the new M276 engine.
