S-Class W221 - EML on, need advise

kay187

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Hey fellow Merc lovers,

I just wanted some advice please - my W221 320CDI has the EML recently come on and the following codes have come up on my OBD reader (I know Star is better and I will get this done once work permits):

**** AFTER EML ****

Fault log report generated by Torque for Android
=================================================

Vehicle VIN: WDD*****************
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: Not present

Current Fault Log
------------------
ECU reports no current faults

Pending Fault Log
------------------
ECU reports no pending faults

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P3148: Unknown code - More information may be available on the web
P2117: Throttle/Pedal Position Sensor F Minimum Stop Performance
P2359: Unknown code - More information may be available on the web
P2600: Coolant Pump Control Circuit/Open
P3004: Unknown code - More information may be available on the web
P2028: EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
P3052: Unknown code - More information may be available on the web
P3053: Unknown code - More information may be available on the web
P2696: Unknown code - More information may be available on the web
P2592: Unknown code - More information may be available on the web
P2668: Fuel Mode Indicator Lamp Control Circuit
P2138: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
P2273: O2 Sensor Signal Stuck Rich bank2 Sensor2
P2263: Turbo/Super Charger Boost System Performance

End of report.
=================================================


**** AFTER CLEARING CODES ****

Fault log report generated by Torque for Android
=================================================

Vehicle VIN: WDD*****************
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: Not present

Current Fault Log
------------------
ECU reports no current faults

Pending Fault Log
------------------
ECU reports no pending faults

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P2117: Throttle/Pedal Position Sensor F Minimum Stop Performance
P2600: Coolant Pump Control Circuit/Open
P3004: Unknown code - More information may be available on the web
P2028: EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
P3052: Unknown code - More information may be available on the web
P3053: Unknown code - More information may be available on the web
P2696: Unknown code - More information may be available on the web
P2592: Unknown code - More information may be available on the web
P2138: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
P2263: Turbo/Super Charger Boost System Performance

End of report.
=================================================


**** AFTER DRIVING A FEW MILES ****

Fault log report generated by Torque for Android
=================================================

Vehicle VIN: WDD*********************
Vehicle Manufacturer: Mercedes-Benz
Vehicle Calibration ID: Not present

Current Fault Log
------------------
ECU reports no current faults

Pending Fault Log
------------------
P0299: Unknown code - More information may be available on the web
P2A00: O2 Sensor Circuit Range/Performance bank1 Sensor1
U0400: Unknown code - More information may be available on the web

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
P2028: EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
P2117: Throttle/Pedal Position Sensor F Minimum Stop Performance
P2138: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
P2263: Turbo/Super Charger Boost System Performance
P2273: O2 Sensor Signal Stuck Rich bank2 Sensor2
P2359: Unknown code - More information may be available on the web
P2592: Unknown code - More information may be available on the web
P2600: Coolant Pump Control Circuit/Open
P2668: Fuel Mode Indicator Lamp Control Circuit
P2696: Unknown code - More information may be available on the web
P3004: Unknown code - More information may be available on the web
P3052: Unknown code - More information may be available on the web
P3053: Unknown code - More information may be available on the web
P3148: Unknown code - More information may be available on the web

End of report.
=================================================


The car was running a little rough the past few days and feeling a little sluggish at times but performance was fine otherwise.

I did notice white smoke sometimes when putting the foot down, I put this down to the DPF possibly being dirty but it seems more like the engine may've been running rich.

The car's had a recent oil service with all filters changed and has 125k on the clock. Apart from changing a starter battery and a few electrical gremlins, I've never had any issues with it

As you can see the O2 sensors have flagged a couple of times above so are these most likely the culprits?

I'm hoping to take the car to a Indy (any recommendations in the Glasgow southside area?) within the next few days to get it on the Star to get more details but as it bugging me, I thought I'd get advice off the wonderful people here :)
 
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alexanderfoti

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Thats a lot of information that doesn't actually tell us much. The definitions the Torque app is giving are a bit off, so its difficult to guess.

Looks like you have a faulty throttle pedal and possibly a faulty o2 sensor, which does happen on these engines.

You should get the car plugged into STAR/DAS/Xentry to check what the others actually mean before spending cash on replacement bits. EVAP fuel code makes no sense for example, neither does fuel mode indicator code!
 
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kay187

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Thats a lot of information that doesn't actually tell us much. The definitions the Torque app is giving are a bit off, so its difficult to guess.

Looks like you have a faulty throttle pedal and possibly a faulty o2 sensor, which does happen on these engines.

You should get the car plugged into STAR/DAS/Xentry to check what the others actually mean before spending cash on replacement bits. EVAP fuel code makes no sense for example, neither does fuel mode indicator code!


Yeah the codes did seem all over the place! I think I'll get the codes read properly and report back.

Would anyone recommend a iCarsoft MBII reader for my car model? Heard mixed reviews on this.
 

KennyN

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Would anyone recommend a iCarsoft MBII reader for my car model? Heard mixed reviews on this.

Just bought one , nice piece of kit and easy to navigate through the menus. Ran a diagnostic on the CLS with no faults found so cant comment on the fault finding abilities though but other say it it is pretty good at pointing you in the right direction when required , hence the purchase.

My local indy charge £80 for a diagnostic check so at £150 for the MB2 it will pay for itself eventually and can be sold on if i change marque.


Kenny
 
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kay187

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I managed to get an Indy to run some Star diags on it and it turns out I've low voltages all over the shot causing all the sensors to go mad due to a buggered rear battery. This is after getting the front starter one replaced as that was also gone! I suppose I should've done both at the same time.

Anyway I'm going to order a new battery now and found the current rear one is a Bosch S5 007 rated at 760A 74Ah but the ones being listed for my car are 019 800-850A 95Ah types instead. Should I be getting like for like or the higher power one?
 

alexanderfoti

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It should be nearly 100ah AGM battery.
 

alexanderfoti

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mb pn A0055411001

12v 95AH
 

Craiglxviii

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Good call on the battery. I had 100+ error codes on the 215 from a duff battery.
 
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kay187

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Good call on the battery. I had 100+ error codes on the 215 from a duff battery.

I crapped myself when I seen so many come up originally! Makes you think the worst :-(
 

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