A170 Gearbox problem

[kkdigger]

Hello Guys

I am Dinos, I am new to the forum. I have a Mercedes A170

I have problem with the gearbox i think. The car wont move or reverse as it should.

I need to press the gas slowly slowly until it start moving (take about 12-15 seconds).
If i press the petal too fast then it start moving but it is kinda confused, it accelerates very fast and shakes.

Anyway i put it on a Diagnosis machine an got the following errors:

I get the following error codes:Petrol (266.940 - SIM266 - MT/AT - 169.032/332)
DTC Description
00C9 - Fault is stored in automatic transmission control unit: Transmission Fluid
Pressure Sensor/Switch A Circuit Range/Performance
- Intermittent
Brake (ESP (Electronic Stability Program) - ESP169 (Electronic Stability
Program) - MT/AT)
DTC Description
6319 - CAN: communication engine
- IntermittentInstrument (Instrument - Instrument - MT/AT)
DTC Description
9141 - Temperature sensor
- IntermittentGearbox (Gearbox - FCVT (CVT gearbox; (Continuously variable automatic
transmission)) - AT)
DTC Description
2732 - Hydraulic brake 'forward gear'; impermissible opening
- Permanent
0841 - While driving, the actual hydraulic pressure is implausible in comparison with
the specified hydraulic pressure in transmission
- PermanentMultifunction (Roof contr. - RCM (Roof control module) - MT/AT)
DTC Description
9001 - The supply voltage of the control unit is too low (undervoltage).

[richarda0109]

Hi

How old is the A170 (must be a W168 pre 2006 model)?
How many miles?
Is it an automatic gearbox or one of those semi-automatic gearboxes with a clutch pedal?
If automatic does the dash come up with an "E" error code when you put it into drive?

Rgds
Richard

[kkdigger]

Hello

No it is a W169 Auto

The error i get is transmition visit workshop it is in limp mode

[Nmemdx]

Hi did you manage to resolve this

[Panamax]

FWIW my indy's view of those particular A-class auto's is "You don't fix them, you throw them away".

Decent little cars but the CVT auto is something of an achilles heel. It comes down to labour cost vs the value of the car. W169s aren't worth a lot of money these days.

If you decide to buy another the manual is very light to drive.