Automatic transmission judder

[karlnico]

Hi I have a 2010 B class 150 auto , the problem is when accelerating the car really judders, so I have to override in manual, it slows down no problem I have had the transmission fluid and filter changed but it has made no difference, the car is over in Spain I have a copy of the fault codes but not shure what needs doing next , could be a speed sensor issue but the guy in the garage who got the codes for me doesn’t do auto transmissions , I would really appreciate any help , cheers

 

[C320]

Yes, the code is for the output speed sensor to transmission. However, requires further investigation. Wiring damaged? Low automatic transmission fluid? Worst case… transmission control module. What is causing the sensor to report a fault. Is it worn out? Something could be triggering the sensor and the sensor might be a-ok. Or sensor could be at fault.

 

[karlnico]

The transmission fluid was changed and is the right level, it just happens when accelerating, so I’ve been using the shifter , which works ok , thank you for your reply

 

[tony gee]

does it have a CVT gearbox ? if so then it could be a drive belt (chain) issue. they are not the best auto box and have a high failure rate. sorry.