Mercedes 722.8 CVT A Class and B Class Speed Sensor Repair

Mercedes-Benz A150 , A170 , A200 , B180 , B200 valvebody mechatronic repair service. This unit normally fails activating the Transmission visit workshop message on the dash or Transmission consult workshop message might appear, the most common failing part numbers are A 1695451032 and A 0034462410. All repairs comes with a 12 month unlimited km warranty* . Most units are re-manufactured within 24 hours, this includes re-engineering of all the original speed sensors circuitry to prevent repeat failure. We also include a before and after test on our purpose built speed sensor simulator to ensure your unit is re-manufactured to the highest standard. As we re-manufacture your unit, there is no need for the additional cost of SCN coding or adaptation.

Common symptoms include:

Transmission Visit workshop warning on dash
Transmission consult workshop
Transmission can go straight into limp mode when selecting drive, slipping , loss of all drive and unable to select drive. These symptoms usually start off intermittently and become more frequent until total failure

Common fault codes are:

P 0722   The rpm signal from component Y3/9b5 (CVT (continuously variable automatic transmission) output rpm sensor) is not available.
P 0723  The rpm signal from component Y3/9b5 (CVT (continuously variable automatic transmission) output rpm sensor) is implausible.
P 0896   Impermissible adjustment of the step down ratio in the continuously variable automatic transmission (CVT).
P 0793   The rpm signal from component Y3/9b4 (CVT (continuously variable automatic transmission) secondary rpm sensor) is not available.
P 0717   The rpm signal from component Y3/9b3 (CVT (continuously variable automatic transmission) primary rpm sensor) is not available.

The fault codes listed below may also be present along with at least one of the codes listed above. However if you ONLY have one or more fault codes listed below please contact us prior to sending your unit for repair.

P 0730   The gear ratio in the continuously variable automatic transmission (CVT) is not permissible.
P 2722   Impermissible closing of hydraulic brake ‘Reverse gear’ has occurred in the continuously variable automatic transmission (CVT) when selector lever ‘N’ was engaged.
P 2731   Impermissible closing of hydraulic clutch ‘Forward gear’  has occurred in the continuously variable automatic transmission (CVT) when selector lever ‘N’ was engaged.
P 2732   Impermissible opening of hydraulic clutch ‘Forward gear’ has occurred in the continuously variable automatic transmission (CVT).
P 2723   Impermissible opening of hydraulic brake ‘Reverse gear’ has occurred in the continuously variable automatic transmission (CVT).
P 0894   The steel thrust belt in the continuously variable automatic transmission (CVT) is slipping.
P 0794   This fault can be ignored and erased.
P 0720   This fault can be ignored and erased.
P 00D4   Fault is stored in component FCVT.
P 00D2   Fault is stored in component FCVT.
P 1634   Component Y3/9n1 (CVT (continuously variable automatic transmission) is defective or the voltage supply is faulty.

We can also repair broken electrical connectors, sensor shafts and some other electrical faults with this unit, additionally if your unit is unrepairable we can transfer the VIN and all drive authority / SCN coding to a 2nd hand unit.

Common part numbers include:

A 1695451032 , A 0034462410 , VGS2 , A 1693700406 , A 1693700506 , A 1693700606 , A 1693700706 , A 1693700806 , A 1693701006 , A 1693701106

Total repair cost is $650 inc GST 
Workshops with a ABN please contact us for trade pricing
Additional charges apply if your unit has had a previous repair attempt or is damaged.

Please do not erase the fault memory prior to sending us your unit, if the fault memory has been cleared please ensure you include paper work with all the fault codes that were present before they were erased.