Javvy

yes ...Just got all issues taken care of & BAM 18 codes popped up WTF is going on I am lost for words....

Recent things completed:

Service B performed
Tranny pan drop and complete fluid swap new gasket etc...I mean complete 12 quarts.
Coolant Thermostat changed
Brand new 4 tires mount balance
Front completely brand new brake setup Rotors/Pads
Door master control switch changed

Here are the 18 codes that popped up....
1) P0448-EVAP Emission Control System
2) P2009-Intake manifold runner control
3) P2257-Secondary Air Injection Control
4) P0414-Secondary Injection Value A CKT Short
5) P0037-HO2S Bank 1 Sensor 2 Heater Circuit Low
6) P0445-EVAP Emission Control System purge Value C Short
7) P0057-HO2S Bank 2 Sensor 2 Heater Circuit Low
8) P0031-HO2S Bank 1 Sensor 1 Heater Circuit Value Low
9) P0051-HO2S Bank 2 Sensor 1 Heater Circuit Low
The other 9 codes are the same except with the designation Pd on the OBDII scanner.

Can someone help me as to what is going on here. I am lost for words.
And my inspection tags have expired and was just thinking to taking it in and now I can't...I guess the car has its own telepathic powers and starts acting up and is just being a PIA.....

any help is must appreciated.

Javvy

LILBENZ230

Have you tried just clearing them and seeing if they come back?

Javvy

I did , they alomst come back immediately. I am clueless. Did the plug on the Thermosatat come off and is causing this, Is there some plug thing in the door module that might have come undone?

No change in the ride quality or the MPGs drives super smooth, no hesitation or rough idle...

this is so confusing...

Javvy

Javvy

could it be the battery...just read this post by c230coupe..

https://mbworld.org/forums/c-class-w...mad-today.html

Mine is still the same since I bought it at 42k miles and currently I am at ~107kmiles.....could all these codes pointing to an old faituged battery???

javvy

pcy

Javvy, to rule-out the battery, fully recharge the battery and have it load-tested [at AutoZone/PepBoys/AdvanceAuto/ etc.]

Look around the parts that were replaced and see if there is any connector/wire that hasn't been plugged in. Check if the O2 sensors are plugged in properly. Did you check the electrical connector on the thermostat?

Javvy

pcy...I will do all that you asked... right now at work wil go home and chcek the thermostat wire and also put the battery on charge overnight and erase the code and chcek if it pops back on and also get the battery load tested tomorrow as well.

javvy

Javvy

All,

I chceked the thermostat connector, it is fine and snug, also chcekd the battery at autozone, it tested out stromng and 100%. Now I am really stumped.

Can some one please guide me to what else I should start checking for?

Javvy

Javvy

Checked all hoses and connectors, all look fine to me. Please any one give me some direction of what should be my next steps in diagnosing this problem.

Javvy

pcy

Javvy, your car is testing your loyalty... :-)

pcy

I feel your frustration...
Other than battery voltage, I am not sure what is common among all those errors. I wouldn't start replacing parts...

So, here is what I would do - take the car to MB dealer, have them diagnose. They probably will charge an hour diagnostic fee. Their star diagnostics may reveal the culprit. Get the printout from them and decide if you want them to replace the relevant part or not.

Javvy

thanks you PCY...that was what I was thinking too.....Let me do a final check one more time; take the air box out and check for any hoses that might have come undone when I was doing the thermostat......if I find nothing then I will have to take it to the dealer for diagnosis only...lol

Javvy