Question about 2002 Mercedes-Benz M-Class

2 Answers

2002 ML500 will randomly not start. Battery check shows its fine. Also have trouble at times with electric windows for driver and front passenger randomly not working. Battery connections checked okay. Any information out there?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Mercedes-Benz Expert
  • 300 Answers

You might need to tap on relays,if it solve problem replace them

Posted on Nov 11, 2013

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mercedes-Benz Master
  • 20,706 Answers

NO CRANK?
are the battery terms clean, this is a service point.

will it not crank or not start, your no start makes no sense.
no car can start if it cant crank, so..... (i can push start mine,with stick shift tranny)

random sux. it's the most expensive word in the eng. language.
ILL pretend you meant ,IT WILL NOT CRANK.
well we do know 4 things and that is
1: the battery can bad, why not use a substituted, (#1 all time failure rate on all cars since 1920 to now, ) barrow one.
2: it has bad connections.
3 bad starter or soleniod.
4: bad key line (small wire on solenoid running back...all can fail)
you can guess, and go broke, or do that tests.
it is your choice, all time record forums is

the other things dead means the connections are bad.
called Main power DC distrutution.
did the windows fail , key on, or only cranking.
ill guess at only key on. they fail. (key point that)
in fact I alway fix power loss to the most basic simple devices.
#1 is head lights fail or dim with fan/and defrost (year) on.
i load up the bus and see if my HL have full brightness.
the fan , is it weak., with all major loads on>?
I fix that first.
and is childs play simple using any voltmeter 20v.
you go to the battery, and across it its 12.6v rested at bat. lugs!
you then turn on fan,defrost and HL.
the battery can do 2 things.
1: say above 12v.
2: drop way low, say below 11v.

if the battery drops its bad, (cranking can in fact drop a battery to 10 or if in alaska 9v)
but if the lamps dim and the batter is 12v
you have bad wiring, no ifs, ands or buts.
ok the wiring is bad, move the red lead down stream from
the bat, PLUS lug, to the fuse Engine bad fuse box.
this is MAIN box. it must have 12v with loads stated.
what i do with schematic in hand is follow that path
the whole way to the head lights.

The stater will not engage if the key line does not go to 12v
10 -18v is the spec on all cars. running.
the starter solinoid coil dies, at 8v,and starts clatttering.

ok lets say the HL are full bright under full loads.
A/T tranny on MB no sticks id bet. (transmission = tranny)
wiggle the brake pedal, the gear shift in park, does it crank>? now
or try starting in Neutral, (this picks off fresh brass in the PRNL switch (yes, ive cleaned many) and does it crank now?
no , then take a small hammer and hit the side of the starter
does it crank now.?
a mech,does all this, with out thinking,its, same o, same o.

then i hot wire the starter soleniod
crank now? (bad key line)
no?, bad starter, bad battery or bad cables. (in truth?, i do this first ,no crank, if terminal on battery are clean.)
if i walk up to battery and it reads 10v, a cell is open.
(or is grossly discharged)
i also have a huge inductive amp clamp meter, (they are cheap today) and check starter current. 100amps is a hot day 1.6L cars
and up to 500 amps on a big engine in Alaska. dead winter.
if the current goes to (tries) to infinity the starter is shorted.
or jammed the engine is seized.
only 2 tools, a volt meter and an ammeter and the truth be known.

Posted on Oct 10, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

ginko
  • 19396 Answers

SOURCE: I have a 1998 Mercedes

Probably a short in wiring. Vibration are causing contact to go on and off, check circuit and connectors with a tester.

Posted on Aug 14, 2008

Benimur
  • 6966 Answers

SOURCE: 1998 Mercedes Electrical / Electronic Issues

Hi,

From all indications, most of your devices are controlled by a common module. This would be similar to the engine management computer but has the responsibility for all those mentioned and then some. if you would notice, most if not all are non essential to the engine's performance. Initial suspect would be such a module and/or the sensors, connectors to it. Being such as multi input and multi output, it is perhaps to your advantage to seek the services of a qualified professional. If you are considering a DIY (do-it-yourself), then access to a full service manual would make things doable if not easier.

Often this control module would be under the dash or on any of the kick panels.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 14, 2008

  • 2 Answers

SOURCE: drivers side front electric window

The common factor to them is they are in one wireing harness going into the door. Has something crimped it or pulled the connections apart?

Posted on Oct 10, 2008

pittmanc
  • 194 Answers

SOURCE: A160 classic model 2002

starter could need to be replaced just getting to week

Posted on Dec 05, 2008

  • 580 Answers

SOURCE: No power to electric windows and interior courtesy lights

This is a common problem, but I've never seen a window regulator go bad in a Mercedes, the problem is probably the switch, you can check his by removing both working and nonworking window switches from the console, and plug in the other side or rear to roll the windows up/down,you will need to disassemble the switch that does not work and clean it well then, it will work again I've done it to my Mercedes

Posted on Jul 15, 2009

Testimonial: "Helps a bit, will be checking switch out, Thanks"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

My passenger side electric window stopped working on my 1991gmc sierra 1500. The passenger side switch panel don't work for the window but works for the lock. Driver side master switch doesn't work for the...


The odds of both switches going bad at the same time is high, remove the door panel and tap on the window motor with a hammer, while trying the switches. I may have jammed up. Ground a test light and check the motor connection, while trying the switch, power will show on either side depending on if it turning up or down

Mar 19, 2015 | Cars & Trucks

1 Answer

Driver's side power window working, but all three passenger windows died at same time. How to assess issue? (i.e., fuses to check, etc.)


Check the window lock out. You may have pushed that on accident. It locks the passenger and rear windows so people dont use them when the driver wants to control window operation.. Usually for annoying kids :) The window lock out usually has a pic of a window with an "X" or a pic of a window with the word "lock"

If that is not it, It sounds like the controls went bad. This happens from time to time. When liquids get onto the window controls its common that some go out and or they all go out. I would put my best guess on the window lock out.
Only true and accurate way to check is manually see if power is exiting the window controller to the rear windows and or passenger window... you would need a Volt meter to watch voltage.

Jan 10, 2015 | Cars & Trucks

4 Answers

1998 Rav 4 power windows.. Front Passenger window will not roll up from master or passenger side. No noise, need new motor


Each system is bad. The windows need regulators(they come with motors) the radio probably died(check fuse). And the mirror switch is bad(Since you still have power to the drivers window).

Oct 21, 2014 | 1998 Toyota RAV4

1 Answer

2002 Carvan Driver side window switches (both) all of sudden do not work.


ck the wire harness in the drivers door jam ,you will have to pull back the rubber boot sometimes the wires brake there from repeted open and closeing of the door,if there ok ck. for power at the motor when operating the switch

Mar 22, 2014 | 2002 Dodge Caravan

1 Answer

Cause fuse keep blowing


-Sounds like power line touch ground some where between door and to fuse block.

Mai Lor

Oct 07, 2013 | Honda Odyssey Cars & Trucks

2 Answers

PASSENGER WINDOW WON'T GO DOWN FROM DRIVERS SIDE


That sounds like the switch is failing to me. Many times these switches get wet and or dirty which causes them to fail to make a proper contact. I have sprayed many of these switches with electrical contact cleaner and seen them work like new. I would try that first before replacing the switch.

Feb 23, 2010 | 2002 Pontiac Montana

1 Answer

The electric window on the passenger side front no longer goes up and down.


If the driver's side button doesn't send the window up or down either, it's probably time to replace the window motor. You'll want to deal with an honest mechanic you trust to check for broken wires too. Sometimes though not often it could be something small.
Good luck

Dec 10, 2009 | 2002 Chevrolet Tracker

1 Answer

Passenger electric window


Hi Ethel101
I think that what has happened with your vehicle, is that the master (driver control) switch has become defective....If you have a friend who is good with electronics you may be able to ask for help in getting it fixed....otherwise a new unit is needed.

Best regards

Johngee10

May 31, 2008 | 2002 Honda Odyssey

Not finding what you are looking for?
2002 Mercedes-Benz M-Class Logo

278 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

yadayada
yadayada

Level 3 Expert

75797 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

166 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...