| –
| Pinch off both coolant hoses between engine and heating system heat exchanger with hose clamps up to Ø 25 mm -3094-. |
| l
| Do the two measured values in display zones “3” and “4” of display group “009” differ by less than 3 °C from the measured value of the evaporator outflow temperature sender -G263- (display zone “1” of display group “010”)? |
|
↓
yes
↓ | ↓
no
↓ |
| –
| Detach hose clamps at both coolant hoses. |
↓ | | –
| Check correct installation of sender with measured value deviation, as well as checking electrical connections for contact resistance. |
|
| –
| Check actuation of left temperature flap control motor -V158- and right temperature flap control motor -V159- → Chapter (perform final control diagnosis). |
| –
| Check position of temperature flaps and corresponding levers for left temperature flap control motor -V158- and right temperature flap control motor -V159- and → Chapter and → Chapter |
| | –
| Eliminate cause of incorrect measured value. Replace defective sender. |
|
