W221 Gearbox,loss of Power- Help

[jakeob1]

Just have a weird experience pulling off from the lights, it felt like i had the handbrake on. (But Didnt)

Reving the engine didnt make any difference the car just went at 5-10mph

Is stopped turned the engine of and on, tried reverse there was a bit of a thud then all went ok...

Just had it serviced so i am sure the brakes are ok,, Any Ideas???????

 

[gilbert121262]

internal speed sensor in gearbox. Turn it off then on then all ok but will fail soon. take it to get codes read will verify. Not cheap, sorry to bear bad news

 

[jakeob1]

Thanks for the info,, how much is not cheap??