M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

W164 front wiper not working . No power to fuse #100

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Old 08-13-2023 | 08:08 PM
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Remik's Avatar
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mercedes ML350 bleutech
W164 front wiper not working . No power to fuse #100

Hello everyone
front wipers are not working, looked around other posts. I got power everywhere else . Cig lighter ok , no SRS lights , windshield washer is working . Tested the rear fuse box #60 is good and I have power . I switch the big yellow relays (A &B) . No change. But the in front fuse box , fuse 100, (It’s suppose to be for the wiper motor) has no power ( used a light tester) . Ignition on or off ( fuse is good) .what does it mean ? Problem with the front SAM ? I m at a loss . If you have any ideas please help . Thx

Last edited by Remik; 08-13-2023 at 08:13 PM.
Old 08-13-2023 | 10:11 PM
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Remik's Avatar
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mercedes ML350 bleutech
Originally Posted by Remik
Hello everyone
front wipers are not working, looked around other posts. I got power everywhere else . Cig lighter ok , no SRS lights , windshield washer is working . Tested the rear fuse box #60 is good and I have power . I switch the big yellow relays (A &B) . No change. But the in front fuse box , fuse 100, (It’s suppose to be for the wiper motor) has no power ( used a light tester) . Ignition on or off ( fuse is good) .what does it mean ? Problem with the front SAM ? I m at a loss . If you have any ideas please help . Thx
update . Thanks to another post I found . Fuse #100 has no power if the hood is open . Have to keep the hood switch on off position . Hope that helps some else . Cheers

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