Fuel economy shocking 230k

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
Hi all

My girlfriend is getting 18-19mpg on her 6 mile commute in our manual 230 k clk.

I know it's a heavy car etc etc but that's 2 or 3 more than my e55 would get on the same journey!

What sort of fuel economy do other users of the 230k engine get?

Sent from a mobile device
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #2
M111 not 271 :)

Sent from a mobile device
 

robparker

Senior Member
Authorised Forum Supporter
Joined
Apr 18, 2006
Messages
2,695
Reaction score
426
Location
Taunton
Your Mercedes
220d (115), 190d (201), c63 (204), 220ce (124)
Well my brother gets 35 on a run out of his c230k manual (202), but not sure around town, based on that I would have assumed around 25
 
Last edited:

Uncle Benz

Senior Member
Joined
Mar 31, 2006
Messages
3,837
Reaction score
2,767
Age
51
Location
West Sussex
Your Mercedes
Mainly Mercedes
Manual 2000 yr clk230k in here this morning. His drive in from Reigate this morning @ 33mpg.
Judging from what we have already seen of this car, i'd look to see if it's got a cheap ebay maf on it.
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #5
Manual 2000 yr clk230k in here this morning. His drive in from Reigate this morning @ 33mpg.
Judging from what we have already seen of this car, i'd look to see if it's got a cheap ebay maf on it.

Good point, will have a look tonight, easy to check.
 

ThinkPad

Senior Member
Joined
Apr 16, 2012
Messages
1,034
Reaction score
109
Location
London
Your Mercedes
E W212; C W204
I was getting similar when I had that car a few years ago. Mine was auto however.
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #7
I was getting similar when I had that car a few years ago. Mine was auto however.

Its defo not right, my other half is a very slow driver, when I drove it around for a day I averaged 13.6!!!
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #8
Just checked. Mercedes Maf so at least that is genuine. Air filter is clean but the car could do with a service.

I'm thinking of going down the 02 sensor route.

Sent from a mobile device
 

hotrodder

Senior Member
Joined
Oct 18, 2008
Messages
894
Reaction score
25
Your Mercedes
'93 320te, '54 ragtop beetle (in bits)
Before you spend any money on parts etc get it plugged in to STAR etc. Note any fault codes, clear 'em, test drive and then see which if any pop up again.

Having said that 18 - 19mpg on a 6 mile commute... if the traffic is clearish then while the coolant might reach 80 quickly the journey will be over before the engine is properly upto temp. If it's heavy rush hour traffic then gallons per hour might apply more than mpg? Either way if that's the type of use it sees mostly then it ain't gonna help general economy/engine efficiency
 

Miffy

Senior Member
Joined
Sep 6, 2008
Messages
7,356
Reaction score
4
Location
Bromley, London
Your Mercedes
CLK 320 CAB Elegance C208
if the O2 sensor was out, I am sure it would flag a MIL?
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #11
if the O2 sensor was out, I am sure it would flag a MIL?

I seem to recall issues with this engine hitting adaption limits and not throwing a code but running in very rich?

Sent from a mobile device
 

hotrodder

Senior Member
Joined
Oct 18, 2008
Messages
894
Reaction score
25
Your Mercedes
'93 320te, '54 ragtop beetle (in bits)
Probably wrong as i'm not familiar with the 208 but i would have thought they'd log things like adaption limits- w124s do
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #13
Before you spend any money on parts etc get it plugged in to STAR etc. Note any fault codes, clear 'em, test drive and then see which if any pop up again.

Having said that 18 - 19mpg on a 6 mile commute... if the traffic is clearish then while the coolant might reach 80 quickly the journey will be over before the engine is properly upto temp. If it's heavy rush hour traffic then gallons per hour might apply more than mpg? Either way if that's the type of use it sees mostly then it ain't gonna help general economy/engine efficiency

Agreed it is a short journey, but the 320 cdi used to to 35 and that was in the same traffic, bigger car, air con on etc. I think I need to drive more personally to see what is does.
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #14
Probably wrong as i'm not familiar with the 208 but i would have thought they'd log things like adaption limits- w124s do

The 208 should do as well, but I seem to remeber that adpation would get stuck to one bias rather than getting stuck on a limit?
 

hotrodder

Senior Member
Joined
Oct 18, 2008
Messages
894
Reaction score
25
Your Mercedes
'93 320te, '54 ragtop beetle (in bits)
Dunno about the adaption thing on a 208, i think i'd probably begin the same way in your position... use it myself for a few decent runs and give it a damn good caning. Might be a waste of time but an Italian tune up on a decent country road is usually fun
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #16
I might give it a service first, no idea how old the oil has been in there for, doesnt look great!
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #18
Has anyone checked for a binding brake?

Good point, I will get the IR thermometer out next time the other half arrives back from work :)
 

amb67

Senior Member
Joined
Dec 28, 2007
Messages
664
Reaction score
1
Location
The Garden of England
Your Mercedes
Mercedes-Benz C220 Coupe AMG, E320 CDI (S211), Aprilia RSVR
I had a C230 K back in 2004 and the fuel economy was shocking back then, I was getting around 20 - 25 mpg but my journey of 100 miles a day was mainly in the lanes of rural Kent.

Suffice to say I got rid of it after a year and replaced it with a C220 that gave me circa 38 mpg on the same journey.
 
OP
alexanderfoti

alexanderfoti

MBO Forum Supporter
Authorised Forum Supporter
Joined
Mar 25, 2010
Messages
13,813
Reaction score
4,027
Location
Tonbridge
Your Mercedes
W221 S65 AMG - W204 C63 AMG + Various other MB's
  • Thread Starter
  • Thread starter
  • Moderator
  • #20
I had a C230 K back in 2004 and the fuel economy was shocking back then, I was getting around 20 - 25 mpg but my journey of 100 miles a day was mainly in the lanes of rural Kent.

Suffice to say I got rid of it after a year and replaced it with a C220 that gave me circa 38 mpg on the same journey.

Hmmm that doesn't bode well for me :(

Sent from a mobile device
 

Stop looking for the Best Garage!! We are here and have the best advanced solutions for you, at Competitive prices. Put us to test with any issue you may have.
Top Bottom