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Limp Mode: Cost to replace valve body and conductor plate etc.
Yikes: Have 0717 code and car went into limp mode and stuck in 2nd gear or something. It's a 2007. I'm taking it to dealer for repair and assuming the worst, estimate is parts $1313 + $720 labor (6 hrs+). I need to confirm but the higher cost of parts indicate it is valve body and conductor plate all in one. Checked a couple of dealers and parts cost is the same.
Shame it had to happen at this time; currently building a home with provision for a car lift however we are at least three months from completion.
Just checked with the parts department and it is not for the valve body but conductor plate or TCM complete with new solenoids etc. It may be best to change the lot even though it costs a little more, what do you think?
If all you have is a 0717 code, you could try just having the speed sensors swapped out via a service such as circuit board medics. VGS2 or 3 ( which you would have ) allows the conductor plate and valve body to be purchased / replaced separately. You would only need the conductor plate, which has the speed sensor(s). 6+ hours labor seems like a long time.
There are several offerings for the Y3/8N1 Y3/8N2 (search those sensors) sensors on eBay and YouTube has DIY instructions. Presumably - https://circuitboardmedics.com/merce...te-tcm-repair/ repair service swaps out the sensors. I'm not recommending or not recommending either as I chose not to go either of those routes as I was able to work out a deal with a local dealer letting me DIY my conductor plate and then have the programming done. I also had Y3/8N4 faults - not something Circuit Board Medics covers. My conductor plate cost $322 after core at the dealer - if all you have is the RPM sensor fault - $299 isn't too bad, especially compared to $2k estimates.
Konigstiger: Thanks for the pdf, it explains a lot and also thanks to kjb55.
I rechecked the code and it is P0717 and given all available info, its something I'm fully capable of doing myself given the time. I've heard of circuitboardmedics however could not locate a local person willing to remove the parts. Living on the NW corner of WA and over 100 miles from Seattle, my local indy is busy for weeks besides he always complains about getting my car on his lift, my car is lowered. #2 I'm so strapped for time and this issue had to happen when I have zero time, travelling out of state every other week and tending to our construction project after work hours the weeks I'm home. Darn, I'm stuck between a rock and a hard place. Let's see what my dealer comes up with the following week.
I took the short cut and let MB change the entire controller complete with all solenoids, sensors etc. Expensive job. That’s the good part but it’s late Friday afternoon and I’m sitting here at the dealership while the tech is consistently trying to.conmect to MB servers in Germany to program the new plate but looks like the German servers are busy or something. Really needed the car by today, have a wedding to go over the weekend; alas I’ll have to take my twenty year old Ford Expedition instead, wife won’t be happy.
Last edited by pinebaron; 06-18-2018 at 07:42 AM.
Reason: Spelling
My tech was having the same trouble. Ended up disabling the WiFi connection and using an Ethernet cable connection and communication with Germany started immediately and the process went quickly after that. Hope it all worked out. Let us know what you think about VGS3 vs 2. I think it’s a bit different. Not better or worse - just different.
Had to leave the car there and be done on Monday. That’s a good point: I had the VGS2 not sure what they put in there, I’ll have to ask them on Monday and hopefully it is the latest compatible version.
In the meantime they loaned me a C250 I think that’s what it is however no comparison with my own car.
Last edited by pinebaron; 06-18-2018 at 07:43 AM.
Reason: Signature
Dealer is telling me the connection and communication with Germany keeps dropping even this morning. As kjb555 suggested, I asked them to drop WiFi connection and use an ethernet cable instead. Apparently it is a country wide issue at the moment and Mercedes Germany are aware and looking into it.
Find a good non dealer shop that can do these kind of things for you. Paying dealer prices post warranty is a sure way of going broke keeping these cars on the road.
Find a good non dealer shop that can do these kind of things for you. Paying dealer prices post warranty is a sure way of going broke keeping these cars on the road.
Looks like Mercedes managed to fix the download link; I expect the car to be programmed soon with a replacement TCU complete with solenoids/sensors etc. which I know was not completely necessary. Sure had a choice but chose to replace the complete unit and not wait for something else to fail. In the last ten years I've only had to replace EGR valve which I did myself and physically/internally repaired glow plug module. I would have loved to tackle the conductor plate job too but these type of jobs will have to wait until our new home is built and I install a Bendpak lift in the shop.
Speed sensor on it's own cannot be replaced. As earlier stated, at my request, the conductor plate complete with all solenoids, sensors, oil guide pipe, ring, 6 screws and gear oil was replaced; same model conductor plate hopefully with better components but that's simply my opinion. While the vehicle was there, I had them replace the air filters too, they were due. $2,255.46 in all.
Gear shifts are noticeablly smoother especially downshifts which I now realize were previously not working as well especially when slowing down.
There is however an outstanding issue I'm aware of and reported by the tech with occasional ESP light due to SCM (I think they mean steering angle sensor) and clock spring needs replacing. This is something I'd do myself however efore I jump into replacing these, I will have the wheels balanced and alignment checked.
Yikes: Have 0717 code and car went into limp mode and stuck in 2nd gear or something. It's a 2007. I'm taking it to dealer for repair and assuming the worst, estimate is parts $1313 + $720 labor (6 hrs+). I need to confirm but the higher cost of parts indicate it is valve body and conductor plate all in one. Checked a couple of dealers and parts cost is the same.
Shame it had to happen at this time; currently building a home with provision for a car lift however we are at least three months from completion.
I have a '06 E350 with the same issue. I have a quote to replace the valve body and conductor plate for $1,800. The car is in immaculate condition with less than 98k miles. Based on your experience, is the repair worth it? Thanks.
Konigstiger: Thanks for the pdf, it explains a lot and also thanks to kjb55.
I rechecked the code and it is P0717 and given all available info, its something I'm fully capable of doing myself given the time. I've heard of circuitboardmedics however could not locate a local person willing to remove the parts. Living on the NW corner of WA and over 100 miles from Seattle, my local indy is busy for weeks besides he always complains about getting my car on his lift, my car is lowered. #2 I'm so strapped for time and this issue had to happen when I have zero time, travelling out of state every other week and tending to our construction project after work hours the weeks I'm home. Darn, I'm stuck between a rock and a hard place. Let's see what my dealer comes up with the following week.
I am literally stuck in the same boat you were once in. And I actually live in Seattle I changed my conductor plate and it fixed my issue of being permanently stuck in 1st gear until I changed the part a few months ago, but 3 weeks ago my car got stuck in high gear on the highway and sometimes when I’m going 35 mph or so and it’s been doing it more frequently. I’m at a loss, but the speed sensor codes I had are still stored. I will try clearing them with a MB scan tool as OBD2 doesn’t seem to be able to clear TCU codes and see what happens
Yikes: Have 0717 code and car went into limp mode and stuck in 2nd gear or something. It's a 2007. I'm taking it to dealer for repair and assuming the worst, estimate is parts $1313 + $720 labor (6 hrs+). I need to confirm but the higher cost of parts indicate it is valve body and conductor plate all in one. Checked a couple of dealers and parts cost is the same.
Shame it had to happen at this time; currently building a home with provision for a car lift however we are at least three months from completion.
DI'd you already fix your vehicle?? If not I got
(07 Mercedes
Valve body & Sunsors
722.9 Trans)
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06-01-2018, 10:46 AM
I changed my conductor plate and it fixed my issue of being permanently stuck in 1st gear until I changed the part a few months ago, but 3 weeks ago my car got stuck in high gear on the highway and sometimes when I’m going 35 mph or so and it’s been doing it more frequently. I’m at a loss, but the speed sensor codes I had are still stored. I will try clearing them with a MB scan tool as OBD2 doesn’t seem to be able to clear TCU codes and see what happens
