So here are the codes
11-29-2011, 05:23 PM
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mercedes c230 Kompressor
So here are the codes
So i tookit to my mother in-laws new husband and he said that the following codes are showing up.
P0730- incorrect gear ratio
P0715- turbine Speed Sensor "a" circuit
P0172- SYSTEM TOO RICH BANK 1
He siad that the first one in his experience means transmission rebuild. He also said that the other two are usually linked to the first which is the worst one. I wanted to ask if there was anything that can be done to fix these issues short of the transmission rebuild. I was hoping at minimum to fix these issues temporarily so that I can take the car in to carmax and trade it in. Any help will be GREATLY appreciated.
P0730- incorrect gear ratio
P0715- turbine Speed Sensor "a" circuit
P0172- SYSTEM TOO RICH BANK 1
He siad that the first one in his experience means transmission rebuild. He also said that the other two are usually linked to the first which is the worst one. I wanted to ask if there was anything that can be done to fix these issues short of the transmission rebuild. I was hoping at minimum to fix these issues temporarily so that I can take the car in to carmax and trade it in. Any help will be GREATLY appreciated.
11-29-2011, 06:38 PM
#2
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P0715 = Input/Turbine Speed Sensor Circuit Malfunction
P0730 = Incorrect Gear Ratio
P0172 = System too Rich (Bank 1)
The system too rich could be anything from a dirty MAF to O2 upstream sensor to dirty air cleaner. I would clean the MAF first. Hope you don't need a new MAF. Use CRC MAF cleaner.
PO715 & 730 are not good news. The box is likely slipping giving conflicting/implausible input from the input shaft speed sensor to the ouput shaft speed sensor.
However - you fortunately have the 722.6 5 speed where you can work on the transmission valve body unlike the 722.9 7 speed.
You need to get the car to a good transmission shop.
- they need to pull the pan off & check the filter for clogging & the oilways/cooler circuit for wear debris & replace/clean etc.
- they need to check the speed sensors.
- they need to check the conductor plate - It might be toast.
You might get lucky with a new filter & clean fluid & a clean up if things are just fouled up - when last was the tranny serviced? s/b done every 39K miles.
The next likelyhood is a new conductor plate & maybe speed sensor.
Worse case scenario is a full tranny rebuild. You won't know until you drop the pan.
Go & talk to a good tranny shop.
Good luck!
P0730 = Incorrect Gear Ratio
P0172 = System too Rich (Bank 1)
The system too rich could be anything from a dirty MAF to O2 upstream sensor to dirty air cleaner. I would clean the MAF first. Hope you don't need a new MAF. Use CRC MAF cleaner.
PO715 & 730 are not good news. The box is likely slipping giving conflicting/implausible input from the input shaft speed sensor to the ouput shaft speed sensor.
However - you fortunately have the 722.6 5 speed where you can work on the transmission valve body unlike the 722.9 7 speed.
You need to get the car to a good transmission shop.
- they need to pull the pan off & check the filter for clogging & the oilways/cooler circuit for wear debris & replace/clean etc.
- they need to check the speed sensors.
- they need to check the conductor plate - It might be toast.
You might get lucky with a new filter & clean fluid & a clean up if things are just fouled up - when last was the tranny serviced? s/b done every 39K miles.
The next likelyhood is a new conductor plate & maybe speed sensor.
Worse case scenario is a full tranny rebuild. You won't know until you drop the pan.
Go & talk to a good tranny shop.
Good luck!
Last edited by Glyn M Ruck; 11-29-2011 at 06:44 PM.
