C220 - W204 - MULTIPLE ERROR CODES - TCM, ESP, SRS, PARKTRONIC
05-31-2017, 09:17 AM
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C220
C220 - W204 - MULTIPLE ERROR CODES - TCM, ESP, SRS, PARKTRONIC
Hi..
I am new to this forum, so bear with me if I do not understand some technical language or abbreviations.
I just bought a Used Mercedes - C 220 -2009 W204.. Engine Code OM 646.811. At the time of purchase the dealer told me that there are quite a few error codes which are being displayed due to some faulty connections and can be all fixed in under $1000 budget..Being new to a luxury car, I believed him and bought the car!
Now here is the situation - Dealer is asking for $8000 for repairs! I'll give a brief on what error codes are there and what is the current situation
1) ESP/Pre-safe/ABS/Run flat indicator inoperative are being displayed on the Instrument cluster - ABS light is ON and a yellow triangle with exclamation is on. I took the car to MB dealership to get it checked. They said that the ESP module on this car has been replaced with a used one and the vins are not matching, hence the ABS and ESP issue.
Below are error codes in scanner
5981 - fault status during valve calibration
6301 - the vins in control units "N30/4 (Electronic stability control unit)" and "N73 (electronic ignition lock control unit)" are not identical
They mentioned that they cannot recode the VIN. so I tried finding techs who can recode the ESP, couple of them tried but failed. so no result here.. Also, sometimes my parking brake light starts blinking and the engine looses power (someone mentioned that car is in emergency mode). Till today, I'll turn off the engine and start again, it'll be fine But today I had to go to a mechanic to erase all codes to get rid of emergency mode.
Also, cruise control and speedtronic are inoperative plus when I shift to manual transmission..I can only down shift the gears but cannot upshift (I cannot start the car with Manual transmission as it does not go beyond D1)
fyi.. My power steering is working fine.
2) There was an error code for boost pressure sensor. MB dealership told me that there is a fault with Turbo Actuator (electronic) but they can only replace the whole turbo and actuator ,as it comes as a unit. I found a used actuator outside and got it replaced, now the power is back but sometimes it feels as there is a lag or very high rev but no power. The Mechanic who fitted the part said that this may be because of ESP/ABS but actuator is working fine. Now, going over the internet, i found multiple opinion about replacement of the actuator - that it needs to be calibrated to turbo (my mechanic just replaced it) or it cannot be calibrated at all as this is done at factory (garrett) for the units (turbo+actuator) to work together.. It'll be great if someone can shed light on this - whether to go for full replacement or stay with this actuator and if the issues (lag and high rev) are related to ESP/ABS or actuator?..btw..my engine light was on before actuator replacement, which has gone after the replacement.
3) Erratic lights - my lights are behaving erratic -
in Tail lamps - for one light reverse light and indicator comes in top red light
in left head light - parking and top long sleek lights work together and sometime the right headlight top long sleek lights come on when I switch off the engine. I have to move the key to position just before start again and bring it back to switch it off.
Also, tail lamp bulb holder connector and wiring connector are burnt for both lights and left head light the small bulb next to xenon has burnt the casing inside (though all bulbs work)
other codes TCM/SRS etc go away when technician erases the memory but they come back in next scan.. It'll be great if someone can help here.
I am new to this forum, so bear with me if I do not understand some technical language or abbreviations.
I just bought a Used Mercedes - C 220 -2009 W204.. Engine Code OM 646.811. At the time of purchase the dealer told me that there are quite a few error codes which are being displayed due to some faulty connections and can be all fixed in under $1000 budget..Being new to a luxury car, I believed him and bought the car!
Now here is the situation - Dealer is asking for $8000 for repairs! I'll give a brief on what error codes are there and what is the current situation
1) ESP/Pre-safe/ABS/Run flat indicator inoperative are being displayed on the Instrument cluster - ABS light is ON and a yellow triangle with exclamation is on. I took the car to MB dealership to get it checked. They said that the ESP module on this car has been replaced with a used one and the vins are not matching, hence the ABS and ESP issue.
Below are error codes in scanner
5981 - fault status during valve calibration
6301 - the vins in control units "N30/4 (Electronic stability control unit)" and "N73 (electronic ignition lock control unit)" are not identical
They mentioned that they cannot recode the VIN. so I tried finding techs who can recode the ESP, couple of them tried but failed. so no result here.. Also, sometimes my parking brake light starts blinking and the engine looses power (someone mentioned that car is in emergency mode). Till today, I'll turn off the engine and start again, it'll be fine But today I had to go to a mechanic to erase all codes to get rid of emergency mode.
Also, cruise control and speedtronic are inoperative plus when I shift to manual transmission..I can only down shift the gears but cannot upshift (I cannot start the car with Manual transmission as it does not go beyond D1)
fyi.. My power steering is working fine.
2) There was an error code for boost pressure sensor. MB dealership told me that there is a fault with Turbo Actuator (electronic) but they can only replace the whole turbo and actuator ,as it comes as a unit. I found a used actuator outside and got it replaced, now the power is back but sometimes it feels as there is a lag or very high rev but no power. The Mechanic who fitted the part said that this may be because of ESP/ABS but actuator is working fine. Now, going over the internet, i found multiple opinion about replacement of the actuator - that it needs to be calibrated to turbo (my mechanic just replaced it) or it cannot be calibrated at all as this is done at factory (garrett) for the units (turbo+actuator) to work together.. It'll be great if someone can shed light on this - whether to go for full replacement or stay with this actuator and if the issues (lag and high rev) are related to ESP/ABS or actuator?..btw..my engine light was on before actuator replacement, which has gone after the replacement.
3) Erratic lights - my lights are behaving erratic -
in Tail lamps - for one light reverse light and indicator comes in top red light
in left head light - parking and top long sleek lights work together and sometime the right headlight top long sleek lights come on when I switch off the engine. I have to move the key to position just before start again and bring it back to switch it off.
Also, tail lamp bulb holder connector and wiring connector are burnt for both lights and left head light the small bulb next to xenon has burnt the casing inside (though all bulbs work)
other codes TCM/SRS etc go away when technician erases the memory but they come back in next scan.. It'll be great if someone can help here.
11-01-2023, 01:33 AM
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