Re: our 1993 300E 2.8 with 203k on it.
I've had an issue with stumbling whilst driving and having a surging idle. After having codes (006) thrown which indicates a Throttle Body issue, I sent it to BBA Reman in Mass. They rebuilt it and sent it back, it was installed and all was okay for awhile. Then, in Dec., it began again. The shop checked a lot of items but since it wasn't throwing any Check Engine codes, we were not able to come up with anything but a faulty EGR valve. So, we disconnected it and plugged it up on the line to the intake manifold side. It ran fine, never had a surging idle and never stumbled when driving. All was okay until late January after returning home from a trip overseas when it began the same symptoms all over again. So, I reconnected the EGR and it ran just fine with zero issues for a couple of days, then it began once again to show the same issues. Then, it threw the same Check Engine code of 006, which indicates a Throttle Body issue. So, I had it packaged up and sent back to BBA. They called yesterday to tell me it checked out okay on their bench tests. So, it's on its way back for it to be reinstalled.
The wiring harness has been replaced. It runs strong with no problems, most of the time. It has an original CAT and has newer coils.
So, BBA mentioned that the '006' code could mean more than just the TB as M-B has other problems associated with that code. Huh? Is this true?
Anyone experience a similar issue and discovered a solution? I'm not sure where to go on this one since the dealer no longer has W124 diagnostic computers anymore. I've tried to contact a shop whose owner used to work at the dealer as a certified mechanic and has the computer, but no one answers. My mechanic has lots of experience with W124s and Benzes and is puzzled as they've not seen this before.
Comments? Any more info needed?
Thanks!!!
I've had an issue with stumbling whilst driving and having a surging idle. After having codes (006) thrown which indicates a Throttle Body issue, I sent it to BBA Reman in Mass. They rebuilt it and sent it back, it was installed and all was okay for awhile. Then, in Dec., it began again. The shop checked a lot of items but since it wasn't throwing any Check Engine codes, we were not able to come up with anything but a faulty EGR valve. So, we disconnected it and plugged it up on the line to the intake manifold side. It ran fine, never had a surging idle and never stumbled when driving. All was okay until late January after returning home from a trip overseas when it began the same symptoms all over again. So, I reconnected the EGR and it ran just fine with zero issues for a couple of days, then it began once again to show the same issues. Then, it threw the same Check Engine code of 006, which indicates a Throttle Body issue. So, I had it packaged up and sent back to BBA. They called yesterday to tell me it checked out okay on their bench tests. So, it's on its way back for it to be reinstalled.
The wiring harness has been replaced. It runs strong with no problems, most of the time. It has an original CAT and has newer coils.
So, BBA mentioned that the '006' code could mean more than just the TB as M-B has other problems associated with that code. Huh? Is this true?
Anyone experience a similar issue and discovered a solution? I'm not sure where to go on this one since the dealer no longer has W124 diagnostic computers anymore. I've tried to contact a shop whose owner used to work at the dealer as a certified mechanic and has the computer, but no one answers. My mechanic has lots of experience with W124s and Benzes and is puzzled as they've not seen this before.
Comments? Any more info needed?
Thanks!!!