Possible broken alternater???please help!
Thread Starter
Newbie
Joined: Jun 2015
Posts: 11
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1999 e320 4matic
Possible broken alternater???please help!
Hello, let me start by saying thank you prior for any help I am a about to receive. I currently have a supspect broken alternator, and would like the opinions of you guys on what you suspect it could be.
Symptoms
recently have been experiencing BAS/ESP light intermittency after a bit of driving around.
I also noticed a sort of creek coming from the car
When battery was jumped all lights, radio, air, ignition switch, etc, but the car would not start as if the battery was dead
Once jumper cables are removed all electric functions stop
Not sure if this is just volts being read because the car was being jumped, but when using climate control diagnostic volts measured around 13
Also battery is less than a year old
Again I really appreciate all comments on the subject!
Symptoms
recently have been experiencing BAS/ESP light intermittency after a bit of driving around.
I also noticed a sort of creek coming from the car
When battery was jumped all lights, radio, air, ignition switch, etc, but the car would not start as if the battery was dead
Once jumper cables are removed all electric functions stop
Not sure if this is just volts being read because the car was being jumped, but when using climate control diagnostic volts measured around 13
Also battery is less than a year old
Again I really appreciate all comments on the subject!
MBWorld Fanatic!
Joined: Jan 2004
Posts: 5,943
Likes: 178
From: Seattle WA
99 E320
check battery voltage, static as well as under load. check battery fluid level
if traditional flooded cell design and if so, also check specific gravity for
proper health. the fact that it was 1 year old has little bearing at this early
point in the diagnostic review
if traditional flooded cell design and if so, also check specific gravity for
proper health. the fact that it was 1 year old has little bearing at this early
point in the diagnostic review
Super Member
Joined: Jan 2015
Posts: 920
Likes: 46
From: Worcestershire UK
W124 260E
May have done the ecu in if it was not jumped in the right way .Time i think for an auto guy to check it out you can play with thes mercs for a long time and not find the problem. Get a star check done .
Thread Starter
Newbie
Joined: Jun 2015
Posts: 11
Likes: 0
1999 e320 4matic
Did a little more investigating turns out I have a cracked terminal causing a lose connection. Tightened it to the best of my ability and it fire right up. Still have my esp bas light on but my check engine is off can a lose connection cause irregularities in electronics? Also my auto window function isn't working when you press the button all the way down.
Senior Member
Joined: Apr 2006
Posts: 463
Likes: 8
From: Long Island, NY
01 E320
Did a little more investigating turns out I have a cracked terminal causing a lose connection. Tightened it to the best of my ability and it fire right up. Still have my esp bas light on but my check engine is off can a lose connection cause irregularities in electronics? Also my auto window function isn't working when you press the button all the way down.
Now hold a power window button up, but don't push it all the way. Window will go up. Continue to hold button like that for 2 seconds after window reaches the top. That will reset the window and it will work. Do that for all 4 windows.
This is normal reset procedure after power is interrupted and is in your manual. Nothing wrong with your car
