7G box stuck in forth gear

[bembo449]

its the 221 pete , its got 121k on the clock

 

[mr_right]

hi all, I have got a W211 E63 with 52k miles on the clock. Once in a while the car seems to get stuck in 4th. I'll get my indi dealer to look at it when they do the service F in a couple of weeks. Switching the car off and on again temporarily resolves the issue.

 

[Wighty]

hi all, I have got a W211 E63 with 52k miles on the clock. Once in a while the car seems to get stuck in 4th. I'll get my indi dealer to look at it when they do the service F in a couple of weeks. Switching the car off and on again temporarily resolves the issue.

Did the car have its gearbox atf and filter change at 37,500 miles ?

 

[Botus]

its either the electroplate speed sensor or the ISM, both standard failures

...I think the ISM is just the one that leaves you stranded if you don't park outside the garage who'll be fixing it as soon as you see the message "don't shift gears". What it should say is "a designed to fail component has just removed £300 from your wallet visit workshop NOW without touching the key !!! or we'll make that £550, including the recovery"

 

[ajlsl600]

its either the electroplate speed sensor or the ISM, both standard failures

...I think the ISM is just the one that leaves you stranded if you don't park outside the garage who'll be fixing it as soon as you see the message "don't shift gears". What it should say is "a designed to fail component has just removed £300 from your wallet visit workshop NOW without touching the key !!! or we'll make that £550, including the recovery"

suspect yr near spot on . sure its been said but unless recently done oil/filter change might help and WONT hinder. to get gears a number of solenoids require energizing and a number related to previous gears require de energizing in my trade normally a forward clutch and a gear or number of gear clutches solenoids can stick or fail to energize, or compromised wiring can cause issues ,or trans ecm can fail , normally due to failed system inputs . best get an indie to take a look as almost certain to require dealer style diagnostics

 

[Fuller0554]

Hello. I'll try and keep this as brief as possible.
I have a 280cdi w211 and about a month ago had the gearbox module replaced under warranty through the dealer I bought the car from. I now have the same symptoms of stuck in third, no drive in reverse and thudding when selecting. Ran the obd and its giving me P2767 input/turbine speed sensor B No signal. My question is does this specific code require a re-visit to be repaired again or is it just one of them things where I clear the code and its fine and that's that. I know these module are made to fail and a regular issue but as this was replaced so recently I thought maybe it's picked up and odd voltage from something and spark up a fault code and if I clear it it'll be OK. I didn't want to go clearing it incase it needs a techi to look at it but there's no code to read. Any one here help with this. Cheers

 

[Wighty]

Hello. I'll try and keep this as brief as possible.
I have a 280cdi w211 and about a month ago had the gearbox module replaced under warranty through the dealer I bought the car from. I now have the same symptoms of stuck in third, no drive in reverse and thudding when selecting. Ran the obd and its giving me P2767 input/turbine speed sensor B No signal. My question is does this specific code require a re-visit to be repaired again or is it just one of them things where I clear the code and its fine and that's that. I know these module are made to fail and a regular issue but as this was replaced so recently I thought maybe it's picked up and odd voltage from something and spark up a fault code and if I clear it it'll be OK. I didn't want to go clearing it incase it needs a techi to look at it but there's no code to read. Any one here help with this. Cheers

Make a note of the code , delete it and see what happens ? Or take it back to the garage to see if it’s related to their repair ?

 

[Fuller0554]

Well they've just been on the phone now and as it's under warranty they are having it back to sort it. I wanted to know so that I know they haven't just erased the code themselves rather than changing the part. If it's faulty but will go for a while then I'm stuck with it when it does die completely and if its out of warranty its £££. I mean I suppose that's all they could have done the first time it was "replaced" and that's why it's died on me this time.

 

[ajlsl600]

just bought one for mine.... its a designed to fail part, as cole says "doing them weekly now...." (that's not unlucky its DTF ! just like it was in the 5 speed boxes)

they can repair many of the designed in issues, but not all of them !!! and at this age a £250 quid repair and £250 to fit it, just for the other bit to fail is not cost effective, buy the new part between £400 to £700 depending on where you get it and give someone £350 to fit it. They were once £1600 I believe.

mine is showing 0722 Y3/8N3 – Output speed sensor (VGS) is not available, been doing on and off for 18 months, twice stuck in first gear, used steering buttons to change up and OK after.





if you have Y3/8N4 you can't fix it. Allegedly stands for the ceramic circuit board failure

you can get any of these repaired

Y3/8N1 – Turbine speed sensor
P0717 – The signal from component Y3/8n1 (Turbine speed sensor (VGS)) is not available
P0718 – Component Y3/8n1 (Turbine speed sensor (VGS)) is defective

Y3/8N2 – Internal speed sensor
P2200 – The signal from component Y3/8n2 (Internal speed sensor (VGS)) in not available
P2201 – Component Y3/8n2 (Internal speed sensor (VGS)) is defective
P2767 – The signal from component Y3/8n2 (Internal speed sensor (VGS)) in not available
P2768 – Component Y3/8n2 (Internal speed sensor (VGS)) is defective

Y3/8N3 – Output speed sensor
P0722 – Output Speed Sensor No Signal
P0723 – Output Speed Sensor (VGS) is defective

Y3/8S1 – Transmission range sensor
P0705 – Transmission Range Sensor Circuit Malfunction
P2716 – Pressure Control Solenoid “D” Electrical

My experience. Ecm don't know exactly what's goin on if input and or output speed sensors are misbehaving and it's near impossible to do clutch fills calibrations and get smooth changes. it wants both of them, plus tyranny oil temp and engine water temp. I have bypassed trans oil temp with a randon resistor that gives et a in range oil temp. But if ecm don't understand speeds u get shxxe changes that f up clutch material and recorded faults I am guessing car makers make speed sensor integral part of electronics that can't be changed seperatly???

 

[Fuller0554]

Yes as the speed sensors and module are all integral to the conductor plate so can't be individually replaced, or atleast that's the impression I've got from what info I can find. Mine is telling me sensor B has no signal but it's only a month old and covered less than 1k miles. Any info on what else could cause the problem or why this issue happens in the first place. I've been getting a shock from the car when I get out of it now and again which normal points to a bad earth somewhere and wondered if this could be shorting out the components some how but that being said I would think that other issues would be going on aswel also lights on the dash which there isn't any. And the only code stored is the P2767 speed sensor B useing a general obd reader not mercedes specific.

 

[ajlsl600]

Use a recognised code reader. U might be chasing shadows if u don't.

 

[Botus]

My experience. Ecm don't know exactly what's goin on if input and or output speed sensors are misbehaving and it's near impossible to do clutch fills calibrations and get smooth changes. it wants both of them, plus tyranny oil temp and engine water temp. I have bypassed trans oil temp with a randon resistor that gives et a in range oil temp. But if ecm don't understand speeds u get shxxe changes that f up clutch material and recorded faults I am guessing car makers make speed sensor integral part of electronics that can't be changed seperatly???

funny forgot I wrote this - its not shown up for a few years now...

 

[ajlsl600]

Uh?