Check power consumption of Telma retarder · ar4340d105002ad · Mercedes-Benz WIS

AR43.40-D-1050-02AD

Check power consumption of Telma retarder

Test values for retarder (electric)

Number	Designation			Model 668, 670 with code BR3


BE43.40-N-1003-01B	Current per circuit	at 24 V and 20 °C	A	20 (20%)
		at 12 V and 20 °C	A	40 (20%)

Commercially available tools

Number	Designation
WH58.30-Z-1001-09A	Multimeter
WH58.30-Z-1016-09A	Clamp-on probe

Check power consumption of Telma retarder

1 Remove cover from retarder relay box (A15).

 Installation: Pay attention to the seal in the cover.

2 Clip  current clamp with  multimeter onto electrical wiring harness to retarder.

3 Press buttons on relays (1, 2, 3, 4) in sequence, and read off and note down measured values shown on  multimeter.

 The measured values must be within the tolerance.
If one of the measured values is outside the tolerance, the electrical connections should be disconnected from the retarder solenoids and each retarder solenoid must be measured separately.

D43.40-0010-03