The car from hell...

Astral Traveler

Astral Traveler

Ambassador of Both Time and Space
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...is broken again. I swear, the spwan of the spawn of Chucky lives in it.

I'm going to sell it, I was about to last week but as I was about to put up the ad the check engine light came on. Again. Fault code below.
Screenshot_20211006_171212_com.iViNi.DrMercedesLite.jpg
The car is a 2007 Mercedes B200, diesel.
I changed the fuel filter today, I didn't have high hopes that would fix it and it didn't. I wanted to start cheap and easy though.

The next step would be to find the fuel pressure sensor, if there is one. There could be a pressure regulator, or possibly just a sensor that controls a PWM regulated fuel pump, I don't know which. If that's not it I'm looking at a new fuel pump. It's not terribly expensive but I'll have to take down the tank so it's still a pain in the ass.

Does anyone have any bright ideas?
 
mcblink said:
A job's a job! Good for you man.
Click to expand...


Thanks, Ive done far worse jobs before :) this temp thing till I make life changing career move. Losing my license taught me thing or two. I dont want to relay on license anymore.
Thinking to study cyber security, as tech is moving forward and constantly evolving I think there is a career in that. Also you don’t have to relay on health and can work from home if pandemic type issues rise again.
 
Ramo said:
Thanks, Ive done far worse jobs before :) this temp thing till I make life changing career move. Losing my license taught me thing or two. I dont want to relay on license anymore.
Thinking to study cyber security, as tech is moving forward and constantly evolving I think there is a career in that. Also you don’t have to relay on health and can work from home if pandemic type issues rise again.
Click to expand...
Cyber security is a very smart career move.
 
Astral Traveler said:
...is broken again. I swear, the spwan of the spawn of Chucky lives in it.

I'm going to sell it, I was about to last week but as I was about to put up the ad the check engine light came on. Again. Fault code below.
View attachment 74036
The car is a 2007 Mercedes B200, diesel.
I changed the fuel filter today, I didn't have high hopes that would fix it and it didn't. I wanted to start cheap and easy though.

The next step would be to find the fuel pressure sensor, if there is one. There could be a pressure regulator, or possibly just a sensor that controls a PWM regulated fuel pump, I don't know which. If that's not it I'm looking at a new fuel pump. It's not terribly expensive but I'll have to take down the tank so it's still a pain in the ass.

Does anyone have any bright ideas?
Click to expand...

MBZ B200 Fuel System Diagram.jpg


1 Activated charcoal filter
2 Fuel tank
A1 Instrument cluster
A1e26 CHECK ENGINE indicator lamp (with Code (494) USA version)
A1e58 Engine diagnosis indicator lamp (not with Code (494) USA version )
A16 Knock sensor
B4/3 Tank pressure sensor (with Code (494) USA version)
B6/1 Camshaft Hall sensor
B11/4 Coolant temperature sensor
B17 Intake air temperature sensor
B28 Pressure sensor
B28/5 Pressure sensor downstream of air filter (not on engine 266.960)
B28/6 Pressure sensor upstream of throttle valve actuator (not on engine 266.960)
B37 Accelerator pedal sensor
G2 Alternator
G3/1 O2O2 sensor downstream of TWC [KAT]
G3/2 O2O2 sensor upstream of TWC [KAT]
K100kI Air pump relay (with Code (494) USA version)
K100kK Fuel pump relay
K100km Starter relay
L5 Crankshaft position sensor
M1 Starter
M3/3 Fuel pump with fuel level sensor
M4/7 Engine and AC electric suction fan with integrated control
M16/6 Throttle valve actuator
M33 Electrical air pump (with Code (494) USA version)
N2/7 Restraint systems control unit
N3/10 ME-SFI [ME] control unit
N15/5 Electronic selector lever module control unit (with transmission 722.8)
N22 AC control and operating unit (with code (580) Automatic air conditioning)
N22/7 Comfort AC control and operating unit (with code (581) Comfort automatic air conditioning)
N47-5 ESP and BAS control unit
N73 EIS [EZS] control unit
N80 Steering column module
N93 Central gateway control unit (up to 31.8.05)
S40/3 Clutch pedal switch (on transmission 711.6 or 716.5)
S40/4 CC pushbutton switch (with Code (440) cruise control)
S40/5 Start enable clutch pedal switch (with transmission 711.6 or 716.5 and Code (494) USA version)
S43/1 Oil pressure switch
S43/2 High oil pressure switch (not on engine 266.960)
T1/1 Cylinder 1+2 ignition coil
T1/2 Cylinder 3+4 ignition coil
X11/4 Data link connector
Y3/9 CVT (continuously variable automatic transmission) electric control unit (with transmission 722.8)
Y16/2 Heating system shutoff valve (not on engine 266.960)
Y31/5 Boost pressure control pressure transducer (not on engine 266.960)
Y32 Air pump switchover valve (with Code (494) USA version)
Y58/1 Purge control valve
Y58/4 Activated charcoal filter shutoff valve (with Code (494) USA version)
Y62 Fuel injection valves
Y101 Divert air switchover valve (not on engine 266.960)
CAN Controller Area Network (data bus/CAN bus) (CAN)
 
Robert Herndon said:
View attachment 74048


1 Activated charcoal filter
2 Fuel tank
A1 Instrument cluster
A1e26 CHECK ENGINE indicator lamp (with Code (494) USA version)
A1e58 Engine diagnosis indicator lamp (not with Code (494) USA version )
A16 Knock sensor
B4/3 Tank pressure sensor (with Code (494) USA version)
B6/1 Camshaft Hall sensor
B11/4 Coolant temperature sensor
B17 Intake air temperature sensor
B28 Pressure sensor
B28/5 Pressure sensor downstream of air filter (not on engine 266.960)
B28/6 Pressure sensor upstream of throttle valve actuator (not on engine 266.960)
B37 Accelerator pedal sensor
G2 Alternator
G3/1 O2O2 sensor downstream of TWC [KAT]
G3/2 O2O2 sensor upstream of TWC [KAT]
K100kI Air pump relay (with Code (494) USA version)
K100kK Fuel pump relay
K100km Starter relay
L5 Crankshaft position sensor
M1 Starter
M3/3 Fuel pump with fuel level sensor
M4/7 Engine and AC electric suction fan with integrated control
M16/6 Throttle valve actuator
M33 Electrical air pump (with Code (494) USA version)
N2/7 Restraint systems control unit
N3/10 ME-SFI [ME] control unit
N15/5 Electronic selector lever module control unit (with transmission 722.8)
N22 AC control and operating unit (with code (580) Automatic air conditioning)
N22/7 Comfort AC control and operating unit (with code (581) Comfort automatic air conditioning)
N47-5 ESP and BAS control unit
N73 EIS [EZS] control unit
N80 Steering column module
N93 Central gateway control unit (up to 31.8.05)
S40/3 Clutch pedal switch (on transmission 711.6 or 716.5)
S40/4 CC pushbutton switch (with Code (440) cruise control)
S40/5 Start enable clutch pedal switch (with transmission 711.6 or 716.5 and Code (494) USA version)
S43/1 Oil pressure switch
S43/2 High oil pressure switch (not on engine 266.960)
T1/1 Cylinder 1+2 ignition coil
T1/2 Cylinder 3+4 ignition coil
X11/4 Data link connector
Y3/9 CVT (continuously variable automatic transmission) electric control unit (with transmission 722.8)
Y16/2 Heating system shutoff valve (not on engine 266.960)
Y31/5 Boost pressure control pressure transducer (not on engine 266.960)
Y32 Air pump switchover valve (with Code (494) USA version)
Y58/1 Purge control valve
Y58/4 Activated charcoal filter shutoff valve (with Code (494) USA version)
Y62 Fuel injection valves
Y101 Divert air switchover valve (not on engine 266.960)
CAN Controller Area Network (data bus/CAN bus) (CAN)
Click to expand...
That is excellent! Thanks man! It looks like I'll be tearing down the tank :(
 
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