P0400 and P0130 codes - Mercedes-Benz Forum
 
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#1 (permalink) Old 03-03-2010, 06:45 PM
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P0400 and P0130 codes

This all began with initial repair of 99 ML320 for EGR by mechanic. On my way to MV inspection CEL light came on again. Returned to mechanic who cleared code and I drove for at least 5 cycles and light returned. Returned to mechanic and he wanted to change front O2 sensors. The price was approximately $700.00. Decided to do work on my own. Viewed BenzWorld and received excellent information regarding code 0410 from MADSLEG, and found injection pump was not functioning. Purchased and installed new pump at a decent price, cleaned shutoff valves and cleared codes. Drove approximately 5 cycles and CEL returned. Scanned and got new codes (P400 and P0130). P0400 is the EGR which was allegedly replaced and pipes allegedly cleaned. I'm going to check for wires and tubing on the engine block that I possibly damaged during my repair. My mileage is at 211,115. Does anyone have suggestions as to these specific codes in relationship to each other? Should I castrate the mechanic if I discover that he really did nothing to repair the EGR?
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#2 (permalink) Old 03-03-2010, 08:21 PM
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Quote:
Originally Posted by 99EmEl View Post
This all began with initial repair of 99 ML320 for EGR by mechanic. On my way to MV inspection CEL light came on again. Returned to mechanic who cleared code and I drove for at least 5 cycles and light returned. Returned to mechanic and he wanted to change front O2 sensors. The price was approximately $700.00. Decided to do work on my own. Viewed BenzWorld and received excellent information regarding code 0410 from MADSLEG, and found injection pump was not functioning. Purchased and installed new pump at a decent price, cleaned shutoff valves and cleared codes. Drove approximately 5 cycles and CEL returned. Scanned and got new codes (P400 and P0130). P0400 is the EGR which was allegedly replaced and pipes allegedly cleaned. I'm going to check for wires and tubing on the engine block that I possibly damaged during my repair. My mileage is at 211,115. Does anyone have suggestions as to these specific codes in relationship to each other? Should I castrate the mechanic if I discover that he really did nothing to repair the EGR?
You must have a blocked EGR tube. The only way to find out is remove it yourself.
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#3 (permalink) Old 03-03-2010, 08:33 PM
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Originally Posted by 99EmEl View Post
This all began with initial repair of 99 ML320 for EGR by mechanic. On my way to MV inspection CEL light came on again. Returned to mechanic who cleared code and I drove for at least 5 cycles and light returned. Returned to mechanic and he wanted to change front O2 sensors. The price was approximately $700.00. Decided to do work on my own. Viewed BenzWorld and received excellent information regarding code 0410 from MADSLEG, and found injection pump was not functioning. Purchased and installed new pump at a decent price, cleaned shutoff valves and cleared codes. Drove approximately 5 cycles and CEL returned. Scanned and got new codes (P400 and P0130). P0400 is the EGR which was allegedly replaced and pipes allegedly cleaned. I'm going to check for wires and tubing on the engine block that I possibly damaged during my repair. My mileage is at 211,115. Does anyone have suggestions as to these specific codes in relationship to each other? Should I castrate the mechanic if I discover that he really did nothing to repair the EGR?
Are you going to fix it yourself? Or are you just venting?

1972 280SEL 4.5
1999 ML320
2000 E320
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#4 (permalink) Old 03-04-2010, 12:00 AM
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Originally Posted by 99EmEl View Post
This all began with initial repair of 99 ML320 for EGR by mechanic. On my way to MV inspection CEL light came on again. Returned to mechanic who cleared code and I drove for at least 5 cycles and light returned. Returned to mechanic and he wanted to change front O2 sensors. The price was approximately $700.00. Decided to do work on my own. Viewed BenzWorld and received excellent information regarding code 0410 from MADSLEG, and found injection pump was not functioning. Purchased and installed new pump at a decent price, cleaned shutoff valves and cleared codes. Drove approximately 5 cycles and CEL returned. Scanned and got new codes (P400 and P0130). P0400 is the EGR which was allegedly replaced and pipes allegedly cleaned. I'm going to check for wires and tubing on the engine block that I possibly damaged during my repair. My mileage is at 211,115. Does anyone have suggestions as to these specific codes in relationship to each other? Should I castrate the mechanic if I discover that he really did nothing to repair the EGR?
Quote:
Originally Posted by Witek_M View Post
Are you going to fix it yourself? Or are you just venting?
Props on the mileage. Never hurts to check the tube yourself. Take pictures and hopefully you have the receipt from the service, then you can go and request your money back or something along those lines.
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#5 (permalink) Old 03-04-2010, 03:40 PM
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Angry

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Props on the mileage. Never hurts to check the tube yourself. Take pictures and hopefully you have the receipt from the service, then you can go and request your money back or something along those lines.
I decided to do it myself. I removed the tube and found it was blocked. Unbelievable, the "mechanic" replaced the EGR but did not clean the tube. A photo of the tube is attached. Will report back after cleaning and reinstalling the parts. Thanks to all who have assisted in this post as well as others whose info I used to get to the tube.
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#6 (permalink) Old 03-04-2010, 11:28 PM
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Sucks. Let us know how it goes and what you plan/will do with the "mechanic" for reimbursement, etc.
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#7 (permalink) Old 03-06-2010, 01:28 PM
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Sucks. Let us know how it goes and what you plan/will do with the "mechanic" for reimbursement, etc.
Passed inspection today. Good for 2 years! Spoke to mechanics and found that they had not taken off tube at block but had blown air through it. Carbon build up was hard mass and was not released. Owner is amenable to making a free future repair on car.

Thanks for the assistance!!
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