CLS550 2014 - electrical questions - help needed
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Joined: Jul 2022
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2014 CLS550
CLS550 2014 - electrical questions - help needed
I am new to the forum and hoping that I can get some direction................... I literally just got my 2014 CLS550 less than a week ago - it ran great for 48hrs and then overnight all hell broke loose.
The following items just stopped working - I checked all the fuses and there were none that were blown, I tested the batteries and both are new and charging fine, even the alternator tested fine.
Gas Gauge - not registering any fuel level, but I just filled it up completely
Key fob - will not lock or unlock any more, I replaced the battery and still nothing
Open hood - I never opened the hood, yet showing that it is open now
ECO Start/Stop - was working fine and now nothing at all, the button does nothing at all
Seat heater/cooling - pushing the buttons does nothing at all and neither is working
Trunk close - pushing the button on the trunk does nothing, also I can't open it without using the physical key
Rear turn signals - neither the left or right turn signal is working now
These are all the gremlins I have found so far....... I am in the DFW area, so open to suggestions if anyone has a trust shop in the area.
Thank you all in advance for the time and looking forward to getting back on the road with all things working again............
The following items just stopped working - I checked all the fuses and there were none that were blown, I tested the batteries and both are new and charging fine, even the alternator tested fine.
Gas Gauge - not registering any fuel level, but I just filled it up completely
Key fob - will not lock or unlock any more, I replaced the battery and still nothing
Open hood - I never opened the hood, yet showing that it is open now
ECO Start/Stop - was working fine and now nothing at all, the button does nothing at all
Seat heater/cooling - pushing the buttons does nothing at all and neither is working
Trunk close - pushing the button on the trunk does nothing, also I can't open it without using the physical key
Rear turn signals - neither the left or right turn signal is working now
These are all the gremlins I have found so far....... I am in the DFW area, so open to suggestions if anyone has a trust shop in the area.
Thank you all in advance for the time and looking forward to getting back on the road with all things working again............
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,156
Likes: 1,770
From: Colorado
G550
After checking fuses, did you also check for battery voltage at the fuse block(s)? There could be a primary fuse (between the battery and fuses you checked and found to be OK) at fault. The variety of unrelated faults would seem to be power related.
Member
Joined: Oct 2020
Posts: 183
Likes: 41
From: Ottawa, Ontario
2013 GLK350 Canada
So weird, almost like the second battery has gone bad (got a spere battery you can connect in its place & retest?). Mine went bad after playing the radio quite a while with the car off (yup, weird). New second battery and then fob, eco, sensors etc began working. Go figure...
