I've been wondering if there is a problem with the fuel economy of my 2008 C320 CDI pretty much since I have bought it.
http://forums.mercedesclub.org.uk/showthread.php?t=117989
I've spoken to the dealer who tells me that a best of 32 MPG from a tank on mostly motorway is within acceptable limits (which surprises me...) so have decided to take a different tack, this time with a fault code reader.
The reader that I went with was an e-Bay Autel MS509. I understand that this is not genuine, but it seems to work fine.
The car is showing no fault codes.
Live data shows the following at idle after warming up the car:
DTC_CNT 0
LOAD_PCT(%) 27.1
ETC(deg F) 189
MAP (inHg) 29.8
RPM (/min) 603
VSS (MPH) 0
IAT (deg F) 73
MAF (lb/min) 1.892
TP (%) 31.4
O2S B1S1---B2S----
OBD EOBD
RUNTM (sec) 1124
MIL_DIST (mile) 0
FRP (PSI) 3480.9
EQ_RATB1S1 1.999
O2B1S1 (v) 0.886
EGR_PTC (%) 4.7
EGR_ERR (%) 21.2
FLI (%) 32.3
WARM_UPS 255
CLR_DIST (mile) 3299
BARO (inHg) 29.2
CATEMP11 (deg F) 321.98
CATEMP12 (deg F) 2192.0
VPWR (v) 13.760
AAT (deg F) 61
APP_D (%) 6.3
APP_E (%) 3.1
TAC_PCT (%) 74.9
MIL_TIME 0h:00m
Does this look OK? I was hoping to be able to catch a high fuel trim reading, or similar, but it doesn't seem like any of the above cover that.
http://forums.mercedesclub.org.uk/showthread.php?t=117989
I've spoken to the dealer who tells me that a best of 32 MPG from a tank on mostly motorway is within acceptable limits (which surprises me...) so have decided to take a different tack, this time with a fault code reader.
The reader that I went with was an e-Bay Autel MS509. I understand that this is not genuine, but it seems to work fine.
The car is showing no fault codes.
Live data shows the following at idle after warming up the car:
DTC_CNT 0
LOAD_PCT(%) 27.1
ETC(deg F) 189
MAP (inHg) 29.8
RPM (/min) 603
VSS (MPH) 0
IAT (deg F) 73
MAF (lb/min) 1.892
TP (%) 31.4
O2S B1S1---B2S----
OBD EOBD
RUNTM (sec) 1124
MIL_DIST (mile) 0
FRP (PSI) 3480.9
EQ_RATB1S1 1.999
O2B1S1 (v) 0.886
EGR_PTC (%) 4.7
EGR_ERR (%) 21.2
FLI (%) 32.3
WARM_UPS 255
CLR_DIST (mile) 3299
BARO (inHg) 29.2
CATEMP11 (deg F) 321.98
CATEMP12 (deg F) 2192.0
VPWR (v) 13.760
AAT (deg F) 61
APP_D (%) 6.3
APP_E (%) 3.1
TAC_PCT (%) 74.9
MIL_TIME 0h:00m
Does this look OK? I was hoping to be able to catch a high fuel trim reading, or similar, but it doesn't seem like any of the above cover that.