I have a 2006 Mercedes s class that has gone in limp mode rn and is giving hard shift.

The fault code is see on scanning the car is 2716
When I tried to clear the fault with my mechanic it did go out of limp mode for a bit and start working properly but post 2 hrs after turning it on again, the issue of limp mode happened again

Before this I faced a issue with my car in which it had gone in limp mode and I did not realise and thought it might just be the transmission fuel that's low .

So as a result it broke my ism and I have to change the intelligence servo module which I bought from sino-autobase.com

Luckily the piece worked out for me and when I turned on the car at that moment all was good but immediately after next day this issue of limp mode started and this fault code of 2716 is now a fixed fault code which is current and stored in ECM.

Please help me understand what could be the issue and solution

Pic of the fault code and message attached below



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No I have not replaced my windshield
But the fault code is pointing to my solenoid D in the value body

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Which sensor is this can I get any guide video and a better understanding how to got to this answer
Thanks

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When was last time transmission was serviced, new fluid/filter?

__________________
Jim

The 722.9 has condutor plate issues as does the 722.6. Unfortunately the conductor plate is part of the valve body on the 722.9 and must be ordered by the dealer as it's programmed to the car. I know somebody who had to do this on an S500 and it cost about $1750 for a replacement.

__________________
With best regards

Al

Ok so I will be servicing the fluid and filter rn . Last it was done was in 2015.



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Are you very sure it's the conductor plate aka TCM or it could also be a faulty selonioid!?

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a 2716 mercedes will be anti matter powered.

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt

The few times I've tried to replace just a solenoid for that problem it either doesn't work at all or returns in a short time with the same problem. I believe that when a solenoid fails it can damage the circuitry in the conductor plate / module. Replacing both should resolve the problem.

__________________

90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff

But I have tested the solenoids with a oms test and also by giving 12v charge and checking clicking also

All are working do you still feel I should change both ??

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There is a complex circuit to drive the solenoid. Testing it for a clicking sound is only a partial confirmation. As you said, it worked for a few hours before it failed again. Manually testing the solenoid while it's connected to the circuit board is also a bad idea.

So what you suggest is as I have a fault of solenoid D I would order only solenoid D
And TCM

Or should I order all 8 solenoid!?

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If its my name on the job and mine to re-do when its not right then absolutely it gets both.

__________________

90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff